Math Olympiad Question | You should know this trick!!

[@ektaverma3792]

let the constant be x a.t.q x+(x+1)+(x+2)=60 3x+3=60 x=60-3/3 x=19 Number x=19 x+1=19+1=20 x+2=19+2=21 thus the largest number is 21

[@Weinspire108]

Correct

[@Lightson_you]

Yeah, that's how I figured it out

[@tyronekim3506]

You and I agree with the method of attack.

[@cxllmegeo3557]

I’ve seen this method used in my algebra classes and I’ve never understood why this works

[@RedTitan5]

​@@tyronekim3506 very good... But in the math constest.... You will lose

[@RGGBMGO]

We can also write this as 3 Σ (x+n) = 60 n=0

[@somebody_33]

This is actually easy for a Math Olympiad question. Suppose x is one number. The next one would be x+1, and the next one x+2. Now, we can write the sum: x+(x+1)+(x+2)=60. We can simplify the equation to 3x+3=60. Subtracting 3 on both sides, we get 3x=57. We can divide 3 on both sides to get *x=19.* The largest number will be x+2, and if we substitute 19 for x, we get 19+2, which equals *21.* Therefore, *D is the final answer.*

[@flexff8265]

Of which class this question is of

[@somebody_33]

@@flexff8265 I think algebra The problem isn’t that hard, anyone with a basic understanding of algebra should be able to solve this problem.

[@flexff8265]

@@somebody_33 No no no I don't mean that mean of class 8 class 9 or class 10

[@somebody_33]

@@flexff8265 I’m not sure.

[@Ibreatheoxygen]

@@flexff8265 class 7

[@iqbalimrit7612]

Very nice. I'm not good in math. I love finding answers!

[@Sir_Isaac_Newton_]

how is this a math olympiad question

[@nilusingh377]

Exactly my thought. Grade 6 question.

[@Kevin_De_Brownie]

Exactly

[@user-hw7st6qx7v]

Suuuuu ronaldo

[@oc1anking956]

@@nilusingh377 it is... for kindergardeners

[@user-cw5ec9hk6lh]

Ncert class 8 exercise 2.4 question 6

[@practicalbachelor.7062]

Haha...i calculated that in my mind just in 3 seconds 🤣

[@joshijoshi1935]

woooow

[@ianchen9217]

@@joshijoshi1935 19,20,21= 60 just did it in my head

[@AyushRaj-lj3dk]

Koi fayda ni h yeh Olympiad ka question hi ni h Sara hua tatti sawal h class 5 kai level ka

[@uchihaitachi01117]

@@AyushRaj-lj3dk tatti🤭

[@BEKSIA]

​@@user-pw1nl6jy8q it's 2th grade for me

[@avinakrishna576]

You are giving very nice knowledge to everyone…awesome

[@LahmacunBey21]

Even a ten years old kid can solve this💀💀

[@JaadooGamer]

See look at the options DO NOT use traditional methods using x to calculate the value rather if you see the options you can infer that if 21 is the largest other two are 19 and 20 if you add these together you will get 60 so 21 is the correct answer

[@Khidash_And_Kayaan]

First of all this is something a 1st grader must know to continue living in Asia…… No drama

[@Rincy_Joji]

Super trick

[@-SweetWhimsy_Kim-]

This actually help's bc im preparing for one and it's tmr

[@Erariz]

cool short especially for the time constraint but this question has the same difficulty as #4 on amc10 so i doubt it's olympiad level status

[@Deepesh_Kolluru]

Easiest question in the world

[@user-dk8wq8hz3c]

Helped A Lot In IMO

[@devmaurya2334]

Surprise test in grade 8 in my school used to have harder question than this.

[@PotatoYT_Official]

X=60÷3+1 since there is 3 consecutive numbers are so the middle is 1 number away from the end and the start thats why we put +1 And 20+1=21 done

[@samuelosei-somuah3072]

X + (x-1) +(x+1)=60. 3x=60 and x =20 therefore x+1=21 and d arrived at algebraically

[@WeHaveSinthelAtHome]

Not close enough for Olympiad paper question status. Would make a good first 5 question for a junior challenge paper

[@ryanvales1677]

Its really tough 😭😭

[@enesyldz5994]

Bro she shows a 4th class question and says it is an olympiad question. :d

[@souravmohanty1200]

thanks sir 🙏💯

[@LookOutForMe]

this is very bad approach to solve these type of questions instead assume the first number be x and x+1,x+2 then x+(x+1)+(x+2)=60 3x+3=60 3x=57 x=19 hence the numbers are 19,20,21

[@parikshitkulkarni3551]

Instead of saying its a bad method, you should say it's a more clever method if you see. Because 20+20+20 is 60 and if you subtract one from one 20 and add that to the other 20 you get 19+20+21 equals 60.

[@reinhardtburger7108]

You calculated the smallest number first. Why? The question asked for the "largest number " so x+(x-1)+(x-2)=60

[@lakshitachoudhary6953]

Let the three numbers be x-1, x , x+1. So, (x-1) + (x) + (x+1) = 60 3x = 60 x = 20 Hence, the largest number = x + 1 = 20+1 = 21.

[@reinhardtburger7108]

@lakshitachoudhary6953 you calculated the middle number why?

[@user-yb5fw2de4m]

Let the 2nd no be x so 1st is x-1 then 3rd no is x +1 so sum is x -1+ 1 + x+x = 3x = 60. SO x=20 and the largest no. Is x +1 that is 21.

[@apshort1986]

Thanks

[@Ronny_Ron]

This is just way too easy - did it in my head

[@SudhirSingh-ry6ep]

21

[@flavrt]

That's not a solution. If X is the number you seek, then X+(X-1)+(X-2) = 60 = 3X -3. Then 3X = 63. So X = 21.

[@JEEstattemptrigvedian]

Bacha bhi solve karle ma'am

[@USGrant-rr2by]

literally took me 5 SECONDS!

[@Ronny_Ron]

And some think you may be lying. You are not lying - took me about the same

[@Ronny_Ron]

@@truebeliever5688 maths degeneration. We can't let real education die

[@proscon4766]

Yea me too literally did it in *4 seconds* in my mind

[@leenageorge7655]

same bro

[@nityanandbiswal4093]

Same

[@tachilunas6040]

60/3=20 (median) 20+1= 21

[@mdshamsad8868]

Very rasy question 😂❤

[@Geryboy666]

good.

[@shauryaabisht5763]

easiest q ever

[@debansipanda9563]

A2+B3+C4=?

[@MohammadShams-yx3ph]

This question is actually not even school level lmao, u just have to: Suppose the three cons. No. As x-1,x,x+1 X-1+x+1+x=60 3x=60 X=20 Since the largest no is x+1 Then yo answer is 21😊

[@krishna04543]

Nice

[@mathshortsguruchannel7972]

Nice❤❤

[@sumeraasifsumera4527]

This is nice

[@sumeraasifsumera4527]

Ya sure

[@blasteditsnaganeverhurtani4039]

So which is not devided by other number is consecutive process 🤟🏼

[@emperorofuniverse4362]

This is not even close to easiest question of imo

[@master_of_facts_]

It is of which class

[@samnote3086]

This is NOT what a math olimpiad looks like. It's a lot more difficult. Even the first olimpiad, which is in forth grade from what i remember is a lot more difficult, but if you look at something like 7th, 8th or maybe 9th grade you will find some stuff with solutions almost impossible to find

[@GreatnessStrikes]

let the middle number be x x-1+x+x+1=60 => 3x = 60 => x = 20 Largest number = x + 1 = 20 + 1 = 21

[@meow-chan-likes-to-purr-1324]

Um at this point I think trial and error is easier and faster with mental calculations

[@ujwalashivajibobade5423]

21 wala like karo

[@anteconfig5391]

Why not 30? Because 60/2 = 30… 30 + 30 = 60 _but_ we need 3 numbers so if we subtract 1 from the first 30 we get: 1+29+30 = 60 Right!? Edit: Why not 1+2+57 = 60 And are we limited to integers? Am I stupid? Idk, I think the question needs to be re-stated because you can literally pick any number of the four options that were given. Edit2: okay, nvm, she meant the mathematical definition of consecutive.

[@Epicfoxy567]

The defination of consecutive mathematical or not is still number that are one after other like 1,2,3 😅

[@anteconfig5391]

@@Epicfoxy567 I was thinking like items in a list. Where the list can be unordered.

[@anteconfig5391]

@@Epicfoxy567 I was thinking like items in a list. Where the list can be unordered. And then you find the sum of three consecutive items in a list.

[@srushtitarhekar4940]

Itne easy question nahi hote olympiad

[@willson2.0-brawlstars69]

I learned this in 7th grade

[@jitendra642]

If we add 20 +20+20=“60”it isAlso 60 the answer is 21 not 20

[@pm7317]

This is math Olympiad for 1st graders??

[@markphc99]

Olympiad huh?

[@pushpasonkamble9012]

You have to take more questions please my Imo Exam is near

[@football_lover2056]

21.. cause 19+20+21=60 this is very easy. we need any difficult q

[@berkay3393]

No way this is an olympiad question, I don't believe it. a+b+c=60 60/3 since there are 3 numbers. They have to be dancing somewhere around 20. 1 less than it, 1 more than it. 19 ,20, 21. 21 is the largest number of the 3. As you can tell, I didn't really take an algebraic approach but you could also solve it that way. x+x+1+x+2=60 3x+3=60 3x=57 x=19, x+2 is the largest number 19+2=21

[@talkingmurga5554]

Let the smallest number be x. x + (x + 1) + (x + 2) = 60 Or, 3x + 3 = 60 Or, 3x = 60 - 3 = 57 Or, x = 19 The largest number is (x + 2) = 19 + 2 = 21 [Option d is correct]

[@rosykumari63]

Let the number be x according to question x+x+1+x+2=60 3x=60-3 3x=57 x=57/3 x=19

[@ridhimadas1965]

21 took 5 seconds in mind😂😂😂

[@umskenduasahor1365]

Easy question

[@gollarithwik4623]

Who woulf actually divide and do the way he said if ur teacher didnt specifically tell u tp do that 😊

[@lalada9267]

Hinder”

[@omsothy4501]

Hi can you solve this math A🐻B=(a+3)-b A🐰B=(a+b)+2 27🐰(12🐻2)=?

[@jonathanwhite5950]

It’s easy ❤

[@lakshitachoudhary6953]

Let the three numbers be x-1, x , x+1. So, (x-1) + (x) + (x+1) = 60 3x = 60 x = 20 Hence, the largest number = x + 1 = 20+1 = 21.

[@tedjaeckel5623]

Teach them to make sentences: X+(x+1)+(x+2)=60

[@proscon4766]

It's called equations 😼

[@sanketsonawane1144]

D (21)

[@bhaktidharsan1877]

👍

[@Shashank_3046]

D

[@idogameril6948]

Are you sure that this is a Math Olympiad Question?

[@user-yi4oi3bk1y]

20

[@Harveyleegoodie]

this is a 8th-9th grade question

[@GyaniPanther97]

16+ 18 + 26 bhi to ho sakta hai

[@bhavyatolani]

D - 21😊

[@roshinimajji6245]

Answer (c) 20

[@In_Love_wid_Study]

It's so easy

[@piuskruzovich780]

Simple

[@subhasdas501]

What if 1+2+57=60

[@renukanandini9401]

So easy

[@aindripandey]

Let the first consecutive number be x So, the second consecutive number is x+1 the third consecutive number is x+2 Equation according to the question - x+x+1+x+2 = 60 3x+3 = 60 3x = 60-3 3x = 57 x = 57/3 x = 19 First consecutive number (x) = 19 Second consecutive number (x+1) = 19+1 = 20 Third consecutive number (x+2) = 19+2 = 21 So the three consecutive numbers whose sum is 60 are 19, 20 & 21. Answer check - 19+20+21 = 60 This is what we needed according to the question so the answer is correct By a 8th grader.... ❤

[@kwabenajosephtwum7610]

OK

[@hanumanprajapat7403]

21 is correct 💯 answer

[@kumarprem2830]

Aennn ????? _+_+_=60 60÷3=20 20+20+20=60 Itna karna jaruri tha ki 20 less 19 greater 21 🙂👍🤣🤣🤣

[@lifestyleofbeautyblog]

No 20

[@ririraychu44800.]

19+20+21=60 Ans. 21

[@ianchen9217]

how is this a math olynpiad question....

[@jayantnarkhede3685]

21 is correct

[@TheImaginativeGurl-zg7gj]

this is easier

[@GudduKumar-ut7ow]

11+1-28=

[@GudduKumar-ut7ow]

🎉🎉🎉🎉🎉🎉🎉🎉🎉 Bhai ❤moj kar😊😊😊😊😊😊😊😊❤❤❤❤❤❤❤❤❤❤❤❤❤🎉🎉🎉🎉🎉🎉🎉🎉🎉

[@avinakrishna576]

Hello

[@user-hj3kx5gc5x]

21 is a right Answer

[@Sufigaming1234]

The right answer is 21 wale like karo

[@subhasdas501]

😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂

[@johnmelis3478]

That's for 8 year olds wtf u say?

[@benji_max9067]

Ddd😂❤😢

[@dieeveryday488]

Lah ini mah soal utbk

[@sharadtiwari1465]

21! Just in 1 second 😂! From India

[@akash.ap.]

mc from india

[@sharadtiwari1465]

@@akash.ap. ?

[@weeb246]

do not write ! behind 21...

[@sharadtiwari1465]

@@weeb246 That '!' is just to show excitation. I do know that it's not grammatical!

[@MostCuriousEye]

ghatiya sawal hai yeh 8th main solve karate hai ise

[@souhaibazem]

this is nooo olympiad question

[@paolobragantini2991]

Useful