Quant Arithmetic L6 | Time & Work : Session 2 | CAT 2024 | MBA Wallah

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CAT 2024 | QUANT ARITHMETIC | MBA Foundation Batch By MBA Wallah: • ARITHMETIC
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#TimeandWork #QuantArithmetic #CAT #CAT2023 #MBAWallah #PhysicsWallah

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[@getting_life_together]

41:50 hw1 . answer is 12 1/2 days Hw2. Answer. 6 6/7 min

[@ajaysharma-hu2ed]

1st answer can u explain 20m +30b= 24m +16b 14b=4m B 7 _. = _ M. 4 20(4)+30(7) = 250 and 24(4)+16(7)= 150 Both are unequal no 41:42

[@shivalishukla2162]

@@ajaysharma-hu2ed You calculated the wrong ratio; it should be b/m = 4/14. Upon further simplification, it becomes 2/7, n then put the value in the equation total will be 200.

[@ajaysharma-hu2ed]

Can any one explain 1st answer can u explain 20m +30b= 24m +16b 14b=4m B 7 _. = _ M. 4 20(4)+30(7) = 250 and 24(4)+16(7)= 150 Both are unequal no 41:42

[@mt0505-b5r]

i am not sure if you are asking for a solution but in case - 20m + 30b = 24m + 16b m / b = 14/4 = 7/2 m = 7 and b = 2 20*7 + 30 *2 = 140 + 60 = 200 For 2 men + 1 boy 2*7 + 1*2 = 14 + 2 = 16 200/16 = 12.5 or 12 1/2 days.

[@gurmanisingh2601]

Home work answer HW-1) 12.5 days HW-2) 6(6/7) mins

[@Artwithnam]

I always solve by random approach and it hardly takes few seconds ❤

[@riyaagrawal-0019]

The standard approach was actually easy. But here all the questions are solved in random approach. Bounced

[@krishnabhardwaj3549]

I also solved questions by standard approach

[@SriArpit23]

But i think random approach was much better than standard approach.... because of calculation

[@SAMEERChoudhary-yu8pc]

❤

[@anbhithakur4938]

Sso true 😢

[@AbhishekSingh-id9hm]

mba wallah please upload all videos or full videos with every type of questions. You onlt taught 65% type of question .

[@mansisukhdeve]

your teaching is so amazing sir..... Thankyou so muchhh ❤❤

[@radharanitripathy6339]

HW 1= 12.5 HW 2= 6.85

[@fhjvvbj6392]

1-d?

[@Kuldeep_Goud]

HW2= 48/7 (B)

[@GovindAdityaK]

Nahi 6 6/7 hoga

[@juhinigam727]

Sir Arun aur vinay wale question me total work done 21 kaise man liya

[@ramankapoor2785]

Sir standard approach se toh kraye hi ni questions 🥲🥲

[@akashkourav9447]

How can we know that question is all about efficiency of the workers ,if the information is not given ?

[@ejazgaming3941]

1:15:33 sir... I think you read wrong. The Q says At the end of 5 minute not after the 5 minute

[@anmolsarwan4744]

yes, I also think so both were working together for 5 mins and then one was turned off. it should be 16.25

[@anant.k6505]

same problem, even if its written "after 5 mins " then also answer should be 13.5 mins left to fill the left tank + 5mins so total 18.5mins , right?@@anmolsarwan4744

[@aasthadwivedi648]

Is this helpful for cmat exam also ??? Plz anyone answer

[@WEAREUPKING]

BUT WEB ARUPKING WORKING INVENTION CREATION HUMANITY HELPING AND PROBLEM SOLVING OKAY BUSINESS DOING AT PRESENT OKAY

[@arpanchakraborty8306]

This dpp was quite hard ...please bring the solution of this dpp in your next dpp solution class sir

[@rohitkumargupta5632]

Have u join any batch of PW for preparation?

[@shrutishrivastava696]

Sister can you share the link of dpp here

[@UTKARSHH__1]

​@@shrutishrivastava696download the pw app sister

[@manjitsarangi2603]

Great lecture. 👍👍👍 Thanks 🙏🙏🙏

[@sohamjana3802]

The SECOND LAST sum is wrong...!! Answer will be 13.889 mins. Please verify.

[@gurjaapsingh9593]

Go study

[@ShamsurrahmanGGB]

Sir this Assumption approach is going bounce 😢😢

[@Leo_M_10]

Hw1= 12.5 Hw2 = 6(6/7)

[@darshanchhajed]

Explain HW2

[@GovindAdityaK]

@@darshanchhajed Ratio of P:Q is 6:1 bcoz P fills 6 times faster than Q, so assume if Q fills 1 ltr/min then p must fill 6 ltr/min cuz 6 times faster. Now, Q takes 6 min to fill 6 ltrs bcoz 1 ltr/min yes ? but P only takes 1 min to fill 6 ltrs cuz 6ltr/min it can fill, so that means p takes 5 min lesser than Q to fill 6 ltrs. then use unitary method or cross multiplication method like: 5 min less = 6 ltrs 40 min less = M ltrs cross multiply gives - > 40 x 6 = 5 x M M = 240 / 5 = 48 ltrs, which is total capacity of tank. now, they ask how much time it will take if both fill together so add their ltr/mins i.e ( 6 ltr/min + 1 ltr/min = 7 ltr/min) now time taken by both to fill = total capacity / total ltr/min = 48 ltrs / 7 ltr/min = 6.8 which is also 6 6/7. ( 6/7 = 0.8) hope u understood now 👍

[@Catyodha]

Ans h.w 1 :- (d) Ans h w 2 : (b)

[@rahulingleshwar8472]

1:12:50 , it is said in question that both the pipes are opened together for 5 min , so instead of taking A+B = 5+4 = 9l / min. Sir has taken only A that is 5L per min. So instead of 5*5 it should have been 9*5= 45 then 100-45 =55 so on on completing the next steps we obtain 13.77 min.

[@BhavyaSingh-fh3be]

exactly

[@Dev-0709]

Yeah after subtracting 45 from 100 we get 55 which divided by 4 gets us 13.75. Hence after that adding the 5min they worked together we get 18.75. So both of you are very wrong

[@aryagupta03]

was searching for this correction

[@suhasn5763]

@@Dev-0709 read the question (question is asking how long did it take for the second pipe to fill the remaining cistern after both the pipes were closed at 5 mins .so 45 is the amount of liquid filled in the cistern by both pipes for 5 mins after that remaining 55 is filled by second pipe so 55/4 is correct answer and this is what the question is asking )it would be stupid to add 5 mins to 13.75 because the 5 mins for second pipe is already been counted in 45(pipe1 (5liters/min)+pipe2 (4 liter/min))multiplied by 5(first five minutes in which both worked together)=(5+4)*5=45,and the remaining 55 is done by pipe 2 which is 55/4=13.75 .so 13.75 is the time that it takes to fill the remaining cistern.

[@VanshikaKansal-te8bl]

41:50 HW-1 :- 12 1/12 days and HW-2 :- 6 6/7 min. 🔥

[@simranKosal]

how u got 12 1/2 in first question

[@anshuljaiswal2931]

​@@simranKosalCan u explain plz

[@Pooja_rawat6686]

Sir apka lecture sirf lod -1 k liye hi h please 🙏 Lod-2 k liye bhi bta Diya kro kbhi to please sir 🙏🙏

[@ettaboinaVamshikrishna]

Sir, in question at the end of 5 min first pipe will be closed why didn't take it as (x-5), if second pipe x, you take it as 5 min only why sir what is the reason

[@Poonamshinde95]

Same question

[@sheetalkumari7789]

U r excellent sir. Thanks alot sir🙏

[@anythingbutnotyou3247]

Cat nikla ky?

[@deveshthakurofficial_007]

very nice explanation sir . op as always.

[@pulkitmishra4927]

54.13 pr kyaa hum ques ko Total work done [1*x = (x-60)3] karke kar sakte hai kyaa, where x is no of days taken by B to finish the job

[@abhisheksingh-fu7kh]

HW1= d HW2=b

[@arindhamgaming]

Kaisa aaya Bhai 12 1/2

[@unzilarehan45]

Can some body explain hw 1 ans please

[@HashimHanfi-gj9qq]

very great session superbbbbbbb amazing

[@bhaveshagarwal9130]

The answer for the sum 210 days 15 men answer is wrong should be 50 days.......they said end 100 days not starting so starting 110 days 18.47 sec in video

[@krishnabhardwaj3549]

Sir , you teach well undoubtedly but why are you using these random approaches , now I'm too much confused 😕

[@Ryankumarking]

Homework question answer is (1)D (2)B

[@khushichauhan6976]

Y answer 12.5 kaise aaya h aap smjha skte ho mera twd nhi aarha correct

[@yashh1737]

@@khushichauhan6976 400 - twd

[@SandilySaxena]

hw no. 2 7 min answer

[@AbhishekSingh-id9hm]

everything was understandable , but where is the traditional method of solving ?. :(

[@kushagra-s1h]

25/2 days 1st answer = 12 1/2 days not getting efficency questions home work no. 2

[@shalumaurya4487]

Wd aur Md nai samjh aaya sir 40:00 pe

[@prachimittal5199]

hw 2 = B

[@amarthombare2434]

HW - 2 :- 6 (6/7)

[@kamleshpande3439]

HW 1 = 12.5

[@kushagra-s1h]

arey bhai 🥴🥴🤧🤕🤒🤒 1:10:50 aur yahan hum difference nikalkar soch rhe ab isklo kaise balance out kare bache huye ko

[@Nakita-qk7cg]

HW 1 - 12(1/2) HW 2 - 6(6/7)

[@khushhhh0]

can you explain: A work was completed by three persons of equal ability, first one doing m hours for m days, second one doing n hours for n days (m and n being integers) and third one doing 16 hours for 16 days. The work could have been completed in 29 days by third person alone with his respective working hours. If all of them do the work together with their respective working hours, then they can complete it in about how many days?

[@Dev-0709]

13

[@ronakparjapati2264]

50:00 sir thoda complex bna diya....Sir ish question ko easy kiya ja sakta tha...... Solution: if one pipe A is 6 time faster than another pipe B. It's mean ration b/w pipe A and pipe B ( A:b = 6:1) it's mean if Pipe A fill tank 6 liter in 1 minute than pipe B fill tank in 1 liter in 1 minute. According to Question: Pipe B complete fill tank in 28 minutes. it's mean cistern/tank capicity is 1 * 28 = 28 liter. if both pipe open in ( 6 + 1) than tank fill 7 liter in 1 minutes so that, cistern will be complete fill if both pipe open in 28 / 7 = 4 minutes. (Answer).

[@saraswatyesh701]

But 4mins. wasn't in the option

[@thecruio]

Why are there no questions solved by the standard approach. Being beginners, for us a random approach comes after we understand standard way properly. Sorry to say that, Sir for you, random is easy because of years of experience. I even teach 9th and 10th class students maths. I don't go on tricks even though I know direct ways because I had taught this multiple times. Same way Sir please teach standard ways. It's good I didn't buy pw course.

[@subhasispal2080]

Sorry, but I started my CAT 2024 preparation from yesterday, and I am doing each and every problem with random approach only, I think it's easier than standard one. And sir is trying to save our time in the exam that's why he is solving with the random approach.

[@478-paramabhattacharya3]

@@subhasispal2080 Just because you find it easy, that dosen't mean everyone will. Even I find the random approach tricky at times. Those weak in maths should maybe start with standard approach and then move up a notch to random approach

[@alexmorgan-q4y]

@@478-paramabhattacharya3 it's okay leave it, after all not everyone can convert to IIM's

[@viragsancheti7684]

buddy this approach isn't for 9th n 10th kids.... This is for the smarter kids who not just want to get into top b-schools but also have the caliber for the same. So, Ig you should keep your experience of teaching at school level, not on the level of people who hire you. iykyk.

[@viragsancheti7684]

@@478-paramabhattacharya3 the bro bettter practice more n more questions from the standard approach first and then once you get the hang of it then try use the random approach, like you said math is a tough game for you, hence first play slow, build your innings(concepts), then start hitting boundaries(short-cuts).

[@WEAREUPKING]

SANDEEP AND RAJIV EMPLOYEE

[@KAJALYADAV-kr8uc]

hw1: 12.5days hw2:48/7

[@prathamsupal3276]

Aa hi nhi rha ans💀

[@Unknown-qt]

​@@prathamsupal3276konsa vla?

[@WEAREUPKING]

I AM NEVER NOTSLEEP NOTSPEAK NOTSTOP NOTFEAR NOTFORGET NOTREST NOT PRIVATE EMPLOYEE

[@shivanshmotiramani9903]

2 men and 3 boys can do a piece of work in 10 days answer - d) 12.5 days

[@shivamdwivedi7769]

hw one - 12 1/2 hw two - 6 6/7

[@SimranGupta-lv7rw]

How to solve 2nd hw?

[@KrutikaNagpure]

❤ too good sir

[@vyas1022]

Sir aapne konsi video ka reference diya jisme option ki help Lena sikhaya. Aapki Awaaz ajeebsi aa rahi thi us line pe

[@WEAREUPKING]

ARE NEVER NOT EMPLOYED

[@premjain889]

HW 1 - 12.5 days

[@divyanshijain2035]

Homework 1:- The answer is option 'D'.

[@divyanshijain2035]

And of homework 2:- It's 'B'.

[@InspirationAndMotivationHub]

HW: 1) 12 1/2 2) 6 6/7

[@hey-qm4fd]

Sir, last ques me direct kyu nhi kr skte like teeno eqns ko add krke then, find the time..

[@madhavsingla5664]

HW1 = ANS.D(12 .5)

[@sanjanadesai5301]

how ?

[@robinsonroy9912]

Four men and six women together can complete a piece of work in six days. Six men and four boys can complete the work in six days. Nine women and twelve boys can complete the work in four days. In how many days can four men, six women and eight boys complete the work?

[@dev1101]

homework Question 1 ka Answer - 12 1/2

[@princeananthjr.9743]

which video to watch for using options while answering ?

[@shailendrakushwahvines5110]

57:10 hw(2): 6 ⁶/⁷

[@vishalbhau97]

12.5 days

[@Anmolgoyal-mg7qx]

Homework question Answer 1 - 12.5

[@piyushdev7648]

1 day

[@ravinarajak8563]

home work 2 answer is option B 6 6\7

[@ravinarajak8563]

home work 2 answer is option B 6 6\7

[@manasbahediya]

doubt : Sreeji can stich a suit in 3 hours less time than Premji. Sreeji stitches it alone for 4 hours and then Premji takes over and completes it. If altogether 14 hours were required to stich the shuit, how many hours would Premji take to stitch the same alone?

[@funny0068]

15.58

[@meghagoyal1153]

Sir you have not uploaded the concept of circular track, constant distance and time.

[@sonawaneshubham3965]

sir ans of 3 rd question is 50 days

[@singhm4709]

hw 2 : 6*(6/7)

[@Ramya-q1n]

sir , at 54:58 the question please explain through standard method

[@anishyadav4465]

1 HW 12.5 2 HW 6.857

[@kushagra-s1h]

can you explain 2nd answer

[@akshatsain3052]

1st -12.5 2nd- 6 6/7

[@WEAREUPKING]

I AM NEVER NOT GOVERMENT EMPLOYEE

[@sahilkumar9507]

home work-1-12.5

[@yadneshaher4703]

A tub of 96 litres capacity had been filled with water by two taps A and B. A was opened for 2 hours longer than B was. If A was opened for as long as B was opened, and B was opened for as long as A was opened, then they would deliver 92 litres of water. If the two taps were opened simultaneously, the tub would be filled in 12 hours. What was the rate of A?

[@kushagra-s1h]

0.5 litres per minute valuer of A

[@rajpandey5540]

Homework 2 Ans 48/7 option b

[@nandiniraj9797]

hw 1 . 12 1/2 hw 2 . 6 6/7

[@rajpandey5540]

Homework 1.. ans 25/2

[@mayankchoudhary1649]

Thank you sir

[@GovindAdityaK]

H.W 1 = 12 1/2 ; H.W 2 = 6 6/7

[@mohitsingh6635]

home work 1 = 12.5

[@arindhamgaming]

Kaisa ayya?

[@siddhantsingh4285]

12 1/2 is the answer

[@ShubhamGupta-qe2ki]

sir sach me apke assumption trick ne question ko halwa bna dia thanku so much sir

[@manvendrasingh3526]

H.w no1=14 days

[@AmanKumar-tr2oc]

12.5

[@KrishnaSharma-op6io]

Hw 1 = 12.5 Hw 2 = 48/7

[@phantompops869]

Bro how did you got 47/7

[@rishisingh009]

42:12 HW OPTION 'D' ANS

[@SriArpit23]

HW2 answer is 6 6/7

[@eshan679]

12.5

[@tanvisharma2208]

55:55

[@creativewine1109]

53:47

[@creativewine1109]

41:52

[@sanchaynema166]

hw 2 ans is 66/7

[@WEAREUPKING]

NEVER NOTTEMPLOYE

[@Naazkhan_08]

This ddp solution make my concept crystal clear!!

[@nityasoni3230]

Where can I find ddp

[@manjulalwani1111]

wat is ddp?