International Maths Olympiad Forum By SOF Olympiad Trainer - Page 713

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 6
B is correct and I am gonna support B

Ans 2:

Class : Class 10
Option b will be correct. This question is there in IMO Workbook and there the answer is b only

Ans 3:

Class : Class 8
It is B

Ans 4:

Class : Class 6
B is correct answer

Ans 5:

Class : Class 9
answer is b

Ans 6:

Class : Class 10
the optoins are the same

Ans 7:

Class : Class 9
B is correct not A

Ans 8:

Class : Class 7
Answer B is correct not A

Ans 9:

Class : Class 9
B is the correct answer since, the second portion in option A doesn't satisfy the order

Ans 10:

Class : Class 10

Ans 11:

Class : Class 9
It is obviously b.

Ans 12:

Class : Class 7
both a and b are correct.

Ans 13:

Class : Class 9
I do not think that the correct answer is A

Ans 14:

Class : Class 6
I also think B is correct

Ans 15:

Class : Class 10

Ans 16:

Class : Class 9

Ans 17:

Class : Class 9
i think B is correct answer

Ans 18:

Class : Class 3
B is correct

Ans 19:

Class : Class 7
B is the correct answer. A cannot be the correct answer as

Ans 20:

Class : Class 10
According to me, B is the answer....

Ans 21:

Class : Class 8
ANSWER B IS ONLY CORRECT

Ans 22:

Class : Class 7

Ans 23:

Class : Class 8
yes,B is the correct answer.Not A.

Ans 24:

Class : Class 8
The answer b is correct as the order of congruence is different in every potion but b is correct

Ans 25:

Class : Class 8
B is the correct answer

Ans 26:

Class : Class 8
The correct answer is B. I am sure.

Ans 27:

Class : Class 8

Ans 28:

Class : Class 7
B is correct not A

Ans 29:

Class : Class 7

Ans 30:

Class : Class 8
b is the correct answer

Ans 31:

Class : Class 8
I do not think that the correct answer is A

Ans 32:

Class : Class 9
b is correct

Ans 33:

Class : Class 8
ans is b

Ans 34:

Class : Class 7
B is correct

Ans 35:

Class : Class 8
Option (B) is the correct answer

Ans 36:

Class : Class 10
B is correct

Ans 37:

Class : Class 7
Answer is supposed to be B not A

Ans 38:

Class : Class 7
B is correct

Ans 39:

Class : Class 7
B IS THE RIGHT ANSWER

Ans 40:

Class : Class 9
Yes B is right

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 10
AAA criterion does not exist

Ans 2:

Class : Class 9
I think (B) is correct

Ans 3:

Class : Class 10
how

Ans 4:

Class : Class 8
Ans is d

Ans 5:

Class : Class 7
I think it should be (B)

Ans 6: (Master Answer)

Class : Class 1
The correct answer is D.

Ans 7:

Class : Class 8
Does anyone really know?

Ans 8:

Class : Class 7

Ans 9:

Class : Class 9
Yes AAA criterion does not exist

Ans 10:

Class : Class 9
Every answer except c is right

Ans 11:

Class : Class 8
I think all options are the correct answers

Ans 12:

Class : Class 10
THE CORRECT ANSWER SHOULD BE (B) AS AAA PROPERTY DOESN'T EXIST

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 7
correct option is D all the options are correct

Ans 2:

Class : Class 6

Ans 3:

Class : Class 7
its option A I guess

Ans 4:

Class : Class 7

Ans 5:

Class : Class 8
right option is C

Ans 6:

Class : Class 10
sorry option a

Ans 7:

Class : Class 6
D

Ans 8:

Class : Class 6
According to me the correct answer is C]

Ans 9:

Class : Class 8

Ans 10:

Class : Class 10
option b

Ans 11:

Class : Class 5
option C is correct so obvios

Ans 12:

Class : Class 6
According to me the correct answer is C]

Ans 13:

Class : Class 6
b

Ans 14:

Class : Class 7
option a

Ans 15:

Class : Class 7
option a is correct

Ans 16:

Class : Class 7
THE RIGHT OPTION IS (B)

Ans 17:

Class : Class 7
its option a i guess

Ans 18:

Class : Class 6
it's D

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Subject :IMO    Class : Class 9

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

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Subject :IMO    Class : Class 9

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 4
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001000

Ans 2:

Class : Class 8
1000

Ans 3:

Class : Class 8
fdsdyugfkojnbklknbvgio

Ans 4:

Class : Class 8
hellow crazy kids

Ans 5:

Class : Class 4

Ans 6:

Class : Class 8
1000

Ans 7:

Class : Class 8
10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

Ans 8:

Class : Class 4
D

Ans 9:

Class : Class 8

Ans 10:

Class : Class 9
6*200=1200Discount - 200NetPayment = 1000Return Change = 2000-1000=1000

Ans 11:

Class : Class 9

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Subject :IMO    Class : Class 3

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Subject :IMO    Class : Class 6

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 7

Ans 2:

Class : Class 10
guys don't fight people just misunderstood the question also me I got it wrong i put 4800 as i did estimate first then subtract i guess all of us will learn from our mistakes

Ans 3:

Class : Class 6
it is simple 7268 - 2427 = 4841 rounded to the nearest hundreds = 4800

Ans 4:

Class : Class 6
A

Ans 5:

Class : Class 6
SUBTRACT AND THE ESTIMATE !!!

Ans 6:

Class : Class 7
What is the point in estimating if we are anyway doing the actual subtraction? It makes sense if we round off the numbers 7268 and 2427 to the nearest hundred and then subtract, but that gives 7300-2400 viz.4900

Ans 7:

Class : Class 7
THERE IS NO ANSWER 4900,4800 BLAH BLAH BRUH !!!!!!!

Ans 8:

Class : Class 7
A

Ans 9:

Class : Class 6

Ans 10:

Class : Class 6

Ans 11:

Class : Class 10
if we apply BODMAS on this question, it says to solve the brackets first...

Ans 12:

Class : Class 10
sorry i meant 4900

Ans 13:

Class : Class 9
the ans is 4800

Ans 14:

Class : Class 7
it should be 4900 as we estimate first than subtract

Ans 15:

Class : Class 6
because it is in bracket , we must subtract and then we must round off to nearest hundred

Ans 16:

Class : Class 10
It generally mentioned clearly what to do first, the actual subtraction or the estimation by SOF. But here, they asked us to estimate 7268-2427. So,we should first do the actual subtraction. By that the answer is 4800.

Ans 17:

Class : Class 7
first we will do subtraction of 7268 and 2427 that is 4841 then we will estimate 4841 by nearest 100 which is 4800 and the anser is this first i have also done it according to NCERT but when result came then it was this solution

Ans 18:

Class : Class 8
As there is a bracket, it means that we have to find the difference and then estimate the number.

Ans 19:

Class : Class 9
The answer must be B)4900 because 7268-2427 = (estimated form) 7300-2400=4900

Ans 20:

Class : Class 4
it means first do subtraction and then estemate

Ans 21:

Class : Class 7
Seriously

Ans 22:

Class : Class 6

Ans 23:

Class : Class 7
bruh of which question are u all talking about there is not a option of 4800,4900... i think the answer should be 10 but its showing b how?

Ans 24:

Class : Class 7

Ans 25:

Class : Class 7
The answer is A not B

Ans 26:

Class : Class 8

Ans 27:

Class : Class 7
Can any one explain how is the option B 16 correct?

Ans 28:

Class : Class 7
We have 7268 – 2427 = 4841 Rounded off 4841 to nearest hundred = 4800

Ans 29:

Class : Class 8
WHAT IS THE USE OF ESTIMATING IF WE ARE DOING THE NORMAL SUBTRACTION. THE ANSWER SHOULD BE 4900 AS THE NUMBER 7268 ESTIMATED TO THE NEAREST IS 7300 AND THEE NUMBER 2427 ESTIMATED TO THE NEAREST HUNDRED IS 2400. 7300-2400=4900

Ans 30:

Class : Class 6

Ans 31:

Class : Class 7
TH ANSWER IS B AGIAN B

Ans 32:

Class : Class 8

Ans 33:

Class : Class 7
stop fighting

Ans 34:

Class : Class 10
4900 should be the answer as we have to estimate first

Ans 35:

Class : Class 7
omg seriously? is this a joke?!!

Ans 36:

Class : Class 6
Shreyansh is correct there is no 4800 or anything else,Btw the answer is (a) 10 not (b) 16!!!!

Ans 37:

Class : Class 6
Answer is A because when you divide 163/14 you get 11. 11 rounded of to the nearest tens is 10

Ans 38:

Class : Class 7
B is not correct it is 10 as when we divide the quetiont results in 11 and when we round that of we will get 10

Ans 39:

Class : Class 9
Exactly….Archita

Ans 40:

Class : Class 9
7268 - 2427 is in bracket . This means first to do subtraction and then estimate the answer to nearest hundreds ...........TRICKY question

Ans 41:

Class : Class 6
estimate and then subtract

Ans 42:

Class : Class 7
first we should subtract and than estimate

Ans 43:

Class : Class 7
THE ANSWER IS A NOT B

Ans 44:

Class : Class 7
they told us to round the quotient to nearest tens so the answer is not 16 the answer is 10

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Subject :IMO    Class : Class 8

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