5 Chapter 1 Trick | Profit and Loss/Discount/Number System/Percentage/Population-Based Questions

Hey!
Congratulations everyone, In this video, we are going to solve 5 chapters with just one trick. Now don't worry if you are preparing Profit & Loss and fear about Number system or preparing Discount and can't understand Percentage or Population-based questions. This one trick will change your mathematics completely.
Share this with your friends and start Practicing.
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Here are the Key Moments of the video 👇
00:00 Intro of the Video
01:28 Profit and Loss Question
05:52 Discount Question 1
10:30 Population Question
12:14 Discount Question 2
16:07 Fact
17:28 Outro
----Thank You for Watching----
Team “Dear Sir"

[@shubhamkatkar9678]

Sir thank you for teaching these types of techniques in easy and understanble way🙏

[@Naughtyfication_]

X × (70/100) × (143/100) = 490 so, by solving this we will get CP : 500 Now starting selling price is 500 × (70/100) = 350(Answer)

[@Code_developer253]

Bro 143 nhi 140 Aur sb shi hai

[@AIOfans]

Yes. 143 ki jagh 140 Baaki sab sahi hai.

[@debasissarkar4210]

Nice broo

[@BerhampurBhaina]

wrong ans is 350 . they asked the first selling price that means 500 is ur cp then minus 30%=350

[@pankajborah6337]

500 will be the answer

[@GHULAMEHIND]

This type of teachers need in our schools and colleges like dear sir☺️

[@priyankanayak4393]

Correct 🎉

[@Greeky_Otaku]

Are you absolutely right bro 👍

[@rammeena2844]

Kya intro tha😂😅

[@PranayKumar06]

😂

[@sourabhpandey9929]

The way you describe or solve the problems of question is just amazing ...really love it ... 😍🙏❤️🔥

[@geethanshr]

Sir you are litrally fabulous ❤️🎉🙏🙏 Such a good trick to convert into 1 equation👍👍👍

[@chandra0094]

4 sal pehle video dekhi thi .... Thankyou bolne aya tha bas 😆

[@UpperCasteRaj]

SSC cracked?

[@SSalma-xo9zj]

Exam is near but no fear becoz dear sir is here🤗🤗

[@shivamlad181]

Intro+teaching+tricks=awsm🤙🎉🙌

[@mohtasham-1]

No Intro+ teaching+tricks+ dear sir 😊😊😊

[@ramniwashkhilery9297]

These types of math teacher required in our schools 🙂🥰

[@mohammadamdani2998]

Haa bhai baki sab bevda marke padhate hai

[@uzumakinaruto_.103]

@@mohammadamdani2998 😆

[@tusharsingh2599]

too jaaa leke

[@KuberPal-xd3jf]

Galat trick

[@kusbhootandon296]

Bina time waste kiye itne ache tarike samjhte h ki kabhi bhul hi nahi payenge..tq so much sir..

[@prachisoni6608]

Sir please make more reasoning topics video you teaching style is awesome sir 🙏❤️💫

[@arpitamahapatra93]

Ans is 350 J= X×70/100 K= X×70/100 × 140/100 = 490 X= 500 putting in 1st equation we will get Selling price of J.

[@anjalirajput1114]

350

[@sarpanchsahab151]

Wrong h 350 is ans

[@yashshahu579]

@@sarpanchsahab151 kaise kya ...solution...?

[@asuresh5494]

What a technique to learn maths thank sir for uploading many vedios on KZbin

[@ADA81320]

Sir ap bht ache se samjate ho...thank u 👍🏻 vedio bht helpfull raha...

[@RitikMaurya07]

*Shortest way to do this* : Fraction value of 60% is 3/5. Since the denominator represents the total value and the numerator represents the amount of change, we'll take the ratio of current year's population (CYP) and next year's population (NYP). NYP = CYP + Numerator (change). Plus sign is a result of increase in the population. CYP NYP 1st year (60%=3/5) 5 : 8 2nd year (60%=3/5) 5 : 8 ------------------ 25 : 64 ------------------ This implies that the population increases from 25 to 64 in 2 years. We know the value of 64 in question is 87040. So, the value of 1 ratio will be (87040÷64) and we need to find the value of 25 _(the first year's population)_ , which is {(87040÷64)×25}, which is exactly what he deduced. *CAUTION: Be advised to use this method only when there's a successive percentage change **_(as in this question)_*

[@SantoshKumari-kh7qp]

Conclusion-Always modify tricks and become faster⚡⚡

[@RitikMaurya07]

@@SantoshKumari-kh7qp yes. You use kumari?

[@KuberPal-xd3jf]

64 ki value 16 to 100 kitni hogi simple question itna kiyo guma rahe he

[@tripathipriya9960]

TQ it's a best trick TQ so much for your explanation 😊

[@vandyrocks]

Sir can you make separate video on discount briefly? Apart from this, Amazing teacher🌻

[@manasvimore7124]

This is really amazing.. Thank you so much sir🙏🙏👏👍

[@priyankanayak4393]

I m watching this class in April 2024...❤❤❤❤ awesome 👌 👏

[@GauravSharma-km2vw]

Dear Sir Can You Please Make A Short Trick Video For D.I (Data Interpretation)

[@ashjaahmedkhan3254]

70 percent of x into 140 percent is equal to 490 so after solving this we get 500 but we were asked the first selling price which was 30 percent of original price in loss so 70 percent of 500 is 350 final answer is 350 rupess

[@shuvankar_sarkar]

Mera bas chale toh 100 likes de du Sir but there's no way to give more than one. You're really working hard for all of us. God bless you Sir..! 💙

[@DearSir]

*Is Video Ko Abhi Share Kro Apne Sabhi Study Groups Me* *Agar Aap Hmare Naye Mehmaan Hain To Hmara Channel* *_DEAR SIR_* *Subscribe Karain.* *Aapko Yahan Aapke Exam Related Aur Videos Bhi Mil Jayengi* Link: kzbin.info/door/9dyrsYEmD4iGJ8Oz1G5dpw *_Thank You_* *Team Dear Sir*

[@INDIA-rw6ur]

Me also bro want to give 1000 likes if it possible 🙆

[@tushargawande1012]

@@DearSir sir i am from std 5th please make video of jawahar नओवोदय exam

[@patilgaming9993]

@@DearSir Pizzz

[@sachinupreti7159]

​@@DearSirone of the worstest channel and teacher I ever seen really sucks

[@user-jm5oj4yu2p]

Very Nice trick.... It's a valuable trick and it will be save time for the exam

[@AkashKashyap-fr5rr]

12m congratulation sir💓

[@DkDoley31692]

Finally, our thought has been revealed only through Dear sir.

[@BharatwaleJain]

Sir, You are awesome. Your videos really help me in improving my reasoning skills. Kindly make video on remaining NTSE MAT topics like puzzles also since NTSE is on 17th November.

[@sarikajain8704]

Yes sir, I also want it.

[@royyadav2714]

Yes

[@hiiprakashsisodiya]

Yes sir please make vedio a on NTSE

[@IITJEE-aspirants_shriyansh]

Yes sir, you are a great teacher

[@Rainingsounds728]

you are really reallly reallllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllly an amazing teacher sir....keep it up!.....love from #KASHMIR sir....

[@sanjayakumarpradhan1332]

Very nice sir. Please send videos on combined mcqs on bodmas, profit and loss,pecentage,average,simple int, time and work, time and distance and unitary method at a time.

[@vikashmishra1903]

Let's take CP instead of X so people can easily understand that here the value which they find first its actually Cost Price not Selling Price X=CP(cost price) so, CP x 70/100 x 140/100 =490 then CP =500 but its a original cost price and J sold it to K in 30% loss means 500 x 70/100 =350 ( J's selling price to K). 🐯 Thanks sir 🐱🙏❤️

[@DearSir]

You are absolutely correct *Is Video Ko Abhi Share Kro Apne Sabhi Study Groups Me* *Agar Aap Hmare Naye Mehmaan Hain To Hmara Channel* *_DEAR SIR_* *Subscribe Karain.* *Aapko Yahan Aapke Exam Related Aur Videos Bhi Mil Jayengi* Link: kzbin.info/door/9dyrsYEmD4iGJ8Oz1G5dpw *_Thank You_* *Team Dear Sir*

[@vikashmishra1903]

@@DearSir I had already subscribed this channel sir ❤️

[@Dibya-joon]

70/100×140/100=490 Ans 500 bt how

[@officeonly8947]

@@Dibya-joon CPx70/100x140/100=490 =49cp/50=490 =Cp=500

[@suhaibmalik1983]

@@Dibya-joon now subtract 30% from 500 u will get 350 answer

[@Cannizarro]

Intro editing level infinity 😂😂

[@user-ui6sx1io1b]

😂😂

[@divisharma3932]

lmaooo

[@adarshsingh8212]

Yes

[@vaishnvimarbate9552]

😂😂🤣🤣🤣

[@Economics365]

😊

[@bchand1546]

We need these kind of teachers in our school who teaches so well and children can understand very easily.

[@gkxknowledgexeries3383]

Are mil gaye he na! Aur kya tumare personal ************

[@sanoffmaran864]

Your greatest teacher in the world 🌍🌍 thanks you dear sir ji

[@rockybhai88353]

By looking the speed and tricks of calculation I can't say you are math teacher but... But you are a real mathamagician

[@alpanabhende]

You too are right

[@slayer5918]

It's mathematician not what you wrote

[@anvyyyytho]

@@slayer5918 look carefully

[@bbahadursinghrautela950]

Cp=500 and as we know that J got a loss of 30 % , so we calculate it 500 ×70/100 =350

[@CAPTURED7]

How to calculate cp value ,500 plz solve cp value

[@aquirechess]

@@CAPTURED7 70% x 140% x X = 490 After solving this equation we got 500

[@reshmaaeie-4132]

Sir, Answer of the last home work question is a)350

[@shalinichundawat6121]

Thank you sir 🙏🏻🙏🏻🙏🏻 Per please accounts me bhi tricks ke video bnaye

[@thecatalyst-bichitrakumars2467]

0:05 that's the reason why I LIKE DEAR SIR...his way of teaching is realy great ...thank u sir...great viddeo

[@BADSHAH2132.]

@@apnipathshala_class_10 u

[@BADSHAH2132.]

@deep

[@debanitasinha3581]

The intro was 🔥

[@JJARMY2000]

Sir aapne math subject ko bahot aasani se samja diya 👍👍👍👍👍👍👍🔥🔥🔥🔥🔥🔥🔥🔥🔥 You are great sir

[@singhparm22]

Sir please tell short trick A shopkeeper sell his articles at their cost price but uses a faulty balance which reads 1000gm for 800 gm what is the actual profit percentage

[@beamyt3608]

I am in class 10 and for no reason I just opened this vedio and after watching intro I was like dear sir had drink red bull and burnt 🐉 wings😂😂😂😂

[@rasmitagauda1070]

Video his bhai vedio nahi

[@AnuRag-lw8ws]

@@rasmitagauda1070 hai hota hai behen his nhi

[@nitishmalakar2250]

@@AnuRag-lw8ws 😆😆😆

[@Areenkhan45]

Sir g dil jeet liya❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤ i am Pakistani

[@nitishmalakar2250]

@@Areenkhan45 PKMKB

[@NitinSharma-kx7sg]

Nice teaching!! I must watch Vidya Guru channel videos for Maths and Reasoning tricks. Their taught questions came in my several SSC exams.

[@Rohittiwari-pm6dm]

Sir ap jo question bataya t vo question mara exam mai aaya thanks sir 🙏🙏

[@DANGER-oy5ef]

Chal jhootha

[@Redeyeanimieworld]

😂bhai ye sahab to sach me genius hai salam hai sir apko🎉🎉🎉 mera

[@rajudesai3069]

Railway or SSC Ka jayda qutions kaijay sir jii ❤️❤️ very helpful 🔥 short tricks

[@ritikayadav7916]

A big big thanku sir for making me solve 40 que in less than 10 minutes.much much gratitude sir🙏🙏🙏🙏

[@RekhaKumari-sl3jn]

Thank you very much sir ji batane ke liye

[@umflms]

agr tum koi ladke pe bharosa karoge dil or jaan de doge toh woh tod dega lekin koi youtuber,idol,youtube me jo padhate hai unpe bharosa karke dekho unko dil de ke dekho...woh tumhe uska 2x wapas dega this comment is written based on the 0:50 clip I loved the way how sir was trying to find a way just for us so that we could solve this chapter's questions

[@iitian_from_madras]

Sir it's an awesome trick, thank u very much sir for helping us 🙏

[@arun7369]

Avengers be like: We need this kind of graphics in the next movie >

[@poetrywithminakshi742]

Hahahaha

[@devanshproductions.8826]

Hasi nhi aai

[@poetrywithminakshi742]

Mujhe bohot hnsi aayi.bola hi aise dhng se

[@devanshproductions.8826]

@@sachinchaudhary4513 hn

[@sachinchaudhary4513]

@@devanshproductions.8826 Hmm

[@vardhansingh4017]

Intro of the video was awesome 😂👍

[@vravi8467]

Ur r the best teacher in my whole world 🌎 ❤

[@ratankumar-yi6ly]

सर आप हम सब के लिए बहुत मेहनत करते है।

[@neelamkoul8929]

Sir thank you so much.... Ap humare liye boht mehnat krte ho.. Shukriya 🥰

[@sharmisthahazarika8529]

The correct answer will be 350. Sir Your teaching method is superb 🙏

[@lavanyabhatt8023]

U,r the best teacher in my life

[@meeshasharma499]

Oh aaj maine jaana ki hamse jyada pareshan aap rahte hai hamare liye ...😐 thank you so much sir 🙇

[@Sabana78619]

Yes

[@mahadevpatil2391]

Ya your right

[@sujatabhamare5773]

Ya correct 👍

[@90yw]

Ha👍🏻👍🏻

[@mohitx3g]

@@Sabana78619 no

[@arpana9813420665]

easy method is cp of k is sp of j...hence answer is 490*100/140=350

[@STAR-COMEDY180]

Mere ko losss our profi aa gya thank you so much

[@brokage-xp6uq]

Sir the answer to the last question will be (a) 350. Thank you soo much for this video, it helped a lot❤❤

[@lalitpatel5403]

Sir, your teaching skill is so amazing thank you sir for explaining

[@poonamdevi3174]

Sir first time ab profit and loss ka questions solve karne me maza aa Raha hai thank you sir sir polynomials chapter ka explaination Apne KZbin chhanel par lagaye sir

[@CareerTalks]

starting is awesome

[@craftingstar2043]

Teaching+tricks+funny= Dear Sir

[@prafuljagtap7242]

Q.1 short trick.. 16% : 64 100% : ? ...let's do cross multiply 64x100÷16= 400✓ (10+6=16)

[@syedmohdjaved]

Yes Praful its more easy

[@sangjitamang7727]

Sir kya aap partnership buisness, variation,simalirity and construction ka video bana sakte hai WBBSE ka

[@Amyra_mittal]

Very nice teaching style

[@Muhammed_Nadeem]

When i see ur entry my every sollution is cleared

[@DarkAlpha199]

Sir thank you so much for this video because today I do all questions related to this topic easily and fastly

[@KRISHSHARMA008]

Aah That's did not do😂😅

[@PrinceYadav-md4dy]

Love you sir your all grp is best 👍💯

[@aartigagat9858]

Thank you sooo much sir for very goood teaching

[@GameZoneHanumanMAHADEV]

Similarly.. Populationwale mein bhi same concept 100 let kra... 60 percent increase hui to 160 phir 60 percent badhi second year to 160 ka 60 percent nikal ke add kro.. Will end up to 256.... So 256=87040 For 1 it will be 340.. Multiply it by 100

[@AllinOne-so2eq]

Apke trick ka to koi jawab hi nahi h STUDY मतलब Dear Sir.........

[@roshandewangan5334]

500 hi hoga sir

[@debeshranjanroutray915]

@@roshandewangan5334 are bhai 500 to ishki tagging price he. Ish me puchha he ki J ne K ko kitne dam pe bika to 500× 70/100 =5×70 = 350 hua na

[@daulatramsharma2724]

350

[@daulatramsharma2724]

As x*70/100*140/100=490 X or cp =500

[@daulatramsharma2724]

Then 500-500*30/100

[@jaismeenkaur6874]

Sir please make a video on boats and streams ................ Sir pls reply

[@airwarriors8628]

Already channel m h Bhai

[@abhijeetnayak435]

That is so easy sister

[@weareone7309]

Directly K selling price is 140/100x=490....it means 490 is 140 percent but now we gate actual buying price of k is equal to selling price j ....140/100x =490 =350

[@kanggetamutnenutamut195]

Perfect explanation sir

[@alltalentsbyssbrothers4224]

Sir, Let selling price is x Then k sold it 40% So equation x × 140/100 =490 x= (49×100)/14 x= 350

[@Pinks19]

Utsav plz read the question carefully. Sir asked to calculate the SP not CP. Cp is 500 but starting SP is 350 that is 30% loss on CP-500

[@poojaprajapat4599]

@@Pinks19 correct

[@abhiganraj1293]

badiya sir

[@saikour111]

Your shortcut is absolutely correct. Kam dimag walo ko nahi samjhega.

[@skjahagir3961]

@@saikour111 yes

[@kumarbittu9423]

1st question ka ans jada fast banane ke liye... Dono percent ko add krke 64 ke equal ke 100% nikal ligiye... Means 6%+10%=16% 16%=64 100%=64/16×100=400

[@NishaKumari-ex7wx]

Starting selling price 500 Thank you so much sir .

[@abhigupta9859]

SIr, Your concepts have been so amazing but these kinds of questions can be solved without applying any formula

[@avisaiyad]

Focus on second statement X original price X(140/100)=490 So x=350

[@AtulRawat96]

350/70= 5*100 = 500

[@basantchoudhury1918]

a)350 is right ans Let starting selling price = a K bought the article at Rs a a×140%=490(K sold it at 40% profit) a=49000/140=350

[@DearSir]

Absolutely correct 👌 *Is Video Ko Abhi Share Kro Apne Sabhi Study Groups Me* *Agar Aap Hmare Naye Mehmaan Hain To Hmara Channel* *_DEAR SIR_* *Subscribe Karain.* *Aapko Yahan Aapke Exam Related Aur Videos Bhi Mil Jayengi* Link: kzbin.info/door/9dyrsYEmD4iGJ8Oz1G5dpw *_Thank You_* *Team Dear Sir*

[@ashokmaurya9582]

Bhai ye to K ka cp aya h

[@kantakumari7045]

@@ashokmaurya9582 mera to correct answer 500 aaya

[@basantchoudhury1918]

@@ashokmaurya9582, K ka CP hi first selling price hai. Since, 1st SP = CP of 2nd person i.e, K

[@utsavtalatiofficial561]

Cross check for your answer "350". Let the cp is 350 ₹ ok? Then J sold K for 30% loss So 350*(70/100) = 245 ₹ Means that the cp for "K" is 245 ₹ Now he sold that for 40% profit So 245*(140/100) = 343 ₹ means that "L" paid 343 ₹.... Not 490 ₹... 😊 Now let 500 ₹ is main cp Now 30% loss of 500 Means 500*(70/100) = 350 ₹ means "K" buy it for 350 ₹ ... Now K sell it with 40% profit... So 350*(140/100) = 490 ₹ .... Also in question L paid 490.... now i proved you @dearsir that the real answer is 500 . 😊😊😊😊😊

[@janhavijadhav39]

Thanks sir me raat 2 baje apki video dhek Raha hu

[@pratik_rathod_917]

Sir mast editing ki hai......big fan sir(of this editing)

[@mr.neelesh_17]

My favorite sir is DEAR SIR of KZbin channel's

[@champion4438]

Sir your style of teaching is unique 💖💖

[@Dreamyquoted.]

Yes ,, you are right

[@ssccoachingclasses9242]

Ok

[@rajendra6536]

Aap jo bhi bolte ho bindaas bolte ho I like u r style

[@murtazahussainy6449]

Sir you are god of maths really very well

[@princeahuja382]

Nice teaching sir.. :) I also like the teaching way of Vidya Guru Sonia ma'am , Their vocab sessions helped really well for my Bank RRB and PO exams.

[@jayeshpatil1015]

traditional method:- let original price 100x its decrease by 30% = new price 70x its increased by 40% =new price98 98x=490 x=5 ; 100*5 ans = 500 but short trick by dear sir x*70/100*140/100=490 so x=500 is the answer

[@suryaprakash8106]

Bhai 40% increase u said then how 98. After i s trick then i understand problem. But again explain in traditional method

[@jayeshpatil1015]

@@suryaprakash8106 bro we assumed the starting price 100 the j got loss of 30% so new price became 70, then k got profit of 40% on 70 so 40% of 70 is 28 so just add 70 and 28 u get 98 new price

[@suryaprakash8106]

@@jayeshpatil1015 thanks ji. Small point i miss. Once again thank you so much

[@DearSir]

Final answer 350 *Is Video Ko Abhi Share Kro Apne Sabhi Study Groups Me* *Agar Aap Hmare Naye Mehmaan Hain To Hmara Channel* *_DEAR SIR_* *Subscribe Karain.* *Aapko Yahan Aapke Exam Related Aur Videos Bhi Mil Jayengi* Link: kzbin.info/door/9dyrsYEmD4iGJ8Oz1G5dpw *_Thank You_* *Team Dear Sir*

[@richacharming6412]

Traditional method see ans 500 q ara h jbki 350 ans h. Mera b and 500 ara h

[@rimjhimjaiswal2933]

Hello sir First of all thank you so much sir I am in class 8th now But because of lockdown I didn't study properly Because of which my math subject is very week But because of your video lectures I started understanding math Thanks sir 🤗🤗🤗

[@arpityadavji5521]

Hi

[@dkmaheshwari7805]

Sir the answer is 500 and I only find the answer in 10 seconds because you are a great teacher🙏🙏🙏🙏🙏🙏

[@mtyh7230]

Sir 1st question can be made easier. 6% loss to 10% profit difference is Rs 64 wich is equal to 16% 16%=rs 64 and so 100%= 400. Please tell me if I made any mistake. Btw I'm your great fan

[@just_a_random_girl2061]

good

[@rickyjena6736]

500 is the answer of the last question Tnx bro Maine aapki trick ke wajah se muh mein hi solve kr diya😀😀

[@MUKESHKUMAR-2009]

500*30/100=150, 500-150=350 remaining, 350*40/100=140, 350+140=490 so 500 is correct answer .

[@sjgamer1749]

Dear sir ka creativity level ♾

[@Vishal266]

17:24 sir option (b) is correct answer please reply sir.

[@as13agaming38]

When you teach about any tricks I forget all the doubts Maa kasam aap bhut acha padhate ho mai to aapka bhut bda fan ho gya shi me I swear Mother swear. keep it sir god bless you💐💐

[@trending_sda2612]

Faku chand

[@arijitbasak7192]

Let C.P be x 1st S.P = 70/100 * x 2nd S.P = 140/100 * 70/100 * x Now, 140/100 * 70/100 * x = 490 => 98 x = 49000 => x = 500 (C.P) Hence, 1st S.P = 70/100 * 500 = Rs. 350 (a) Thanks a lot for the nice tips. Through your questions, I got to assess myself on my preparations. I was able to solve all of them except for the fourth question, which was a little bit new to me. But after seeing your explanation, it got so much easy. I need to focus more on P & L, Discount and R & P problems but slowly and steadily, I will gain confidence by practicing and revising. I'm learning everyday from your videos and they are helping me a lot as you make study so fun and interesting. Just small videos but very efficient...that's how it should be done, not taking everything at once but one at a time through the concepts. Yes, it is definitely power. Learn anything in a way so that we can teach others as well and make use of that knowledge in the betterment of life. Stay blessed and keep encouraging like this because good teachers are very rare and much needed in this world. 📖 💖 ✨

[@Maurya_A48]

Sahi bole th sir ji pahle wla nhi second wla tha answer

[@hafizbilalahmadsiddiqi5086]

Original Selling price is 350. As u said We get cost price from initial equation viz 500. Thanks for ur trick. Trick understands one who has his basics clear in mathematics.