International Maths Olympiad Forum By SOF Olympiad Trainer - Page 667

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 5
correct answer is C as 5/6*6/6= 30/36 but resultant fraction will always be 5/6

Ans 2:

Class : Class 10

Ans 3:

Class : Class 10

Ans 4:

Class : Class 7
C

Ans 5:

Class : Class 3
If they tell increase by addition or multiplication , we'll know whether answer is C or A otherwise both answers are right

Ans 6:

Class : Class 8
in my opinion both a and c are correct

Ans 7:

Class : Class 8
the correct answer is c

Ans 8:

Class : Class 7
The correct answer is a because 1/2 < 2/3 < 3/4 < 4/5 < 5/6 < 6/7 < 7/8 < 8/9...

Ans 9:

Class : Class 7
my answer is d

Ans 10: (Master Answer)

Class : Class 1
The correct answer is A.

Ans 11:

Class : Class 4

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Subject :IMO    Class : Class 7

Ans 1:

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

Ans 2:

Class : Class 6
I also think B is correct

Ans 3:

Class : Class 10
the optoins are the same

Ans 4:

Class : Class 10
B is correct

Ans 5:

Class : Class 8
B is the correct answer

Ans 6:

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

Ans 7:

Class : Class 8
ANSWER B IS ONLY CORRECT

Ans 8:

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

Ans 9:

Class : Class 7
Answer B is correct not A

Ans 10:

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

Ans 11:

Class : Class 7
B is correct

Ans 12:

Class : Class 9
b is correct

Ans 13:

Class : Class 8

Ans 14:

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

Ans 15:

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

Ans 16:

Class : Class 6
B is correct answer

Ans 17:

Class : Class 9
i think B is correct answer

Ans 18:

Class : Class 8
b is the correct answer

Ans 19:

Class : Class 9

Ans 20:

Class : Class 7

Ans 21:

Class : Class 7
B is correct

Ans 22:

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

Ans 23:

Class : Class 9
Yes B is right

Ans 24:

Class : Class 7
B is correct not A

Ans 25:

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

Ans 26:

Class : Class 8
ans is b

Ans 27:

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

Ans 28:

Class : Class 7
both a and b are correct.

Ans 29:

Class : Class 9
answer is b

Ans 30:

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

Ans 31:

Class : Class 9
It is obviously b.

Ans 32:

Class : Class 8
It is B

Ans 33:

Class : Class 7

Ans 34:

Class : Class 10

Ans 35:

Class : Class 10

Ans 36:

Class : Class 10
B is correct

Ans 37:

Class : Class 7
B IS THE RIGHT ANSWER

Ans 38:

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

Ans 39:

Class : Class 9
B is correct not A

Ans 40:

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

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Subject :IMO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

Ans 2:

Class : Class 10
how

Ans 3:

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

Ans 4:

Class : Class 9
Yes AAA criterion does not exist

Ans 5:

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

Ans 6:

Class : Class 10
AAA criterion does not exist

Ans 7:

Class : Class 8
Does anyone really know?

Ans 8:

Class : Class 7

Ans 9:

Class : Class 7
I think (B) is correct

Ans 10:

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

Ans 11:

Class : Class 8
Ans is d

Ans 12:

Class : Class 9
Every answer except c is right

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 8
right option is C

Ans 2:

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

Ans 3:

Class : Class 7
THE RIGHT OPTION IS (B)

Ans 4:

Class : Class 6
b

Ans 5:

Class : Class 6
D

Ans 6:

Class : Class 10
sorry option a

Ans 7:

Class : Class 6

Ans 8:

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

Ans 9:

Class : Class 7
its option a i guess

Ans 10:

Class : Class 7
option a is correct

Ans 11:

Class : Class 10
option b

Ans 12:

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

Ans 13:

Class : Class 6
option C is correct so obvios

Ans 14:

Class : Class 6
it's D

Ans 15:

Class : Class 7
its option A I guess

Ans 16:

Class : Class 7
option a

Ans 17:

Class : Class 7

Ans 18:

Class : Class 8

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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
D

Ans 2:

Class : Class 4

Ans 3:

Class : Class 8
1000

Ans 4:

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

Ans 5:

Class : Class 8
10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

Ans 6:

Class : Class 8
fdsdyugfkojnbklknbvgio

Ans 7:

Class : Class 8
1000

Ans 8:

Class : Class 8
hellow crazy kids

Ans 9:

Class : Class 4
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001000

Ans 10:

Class : Class 8

Ans 11:

Class : Class 8

Post Your Answer

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

Ans 2:

Class : Class 7

Ans 3:

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

Ans 4:

Class : Class 8
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 5:

Class : Class 8
sorry i meant 4900

Ans 6:

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 7:

Class : Class 8
Exactly….Archita

Ans 8:

Class : Class 8

Ans 9:

Class : Class 7
THE ANSWER IS A NOT B

Ans 10:

Class : Class 7
A

Ans 11:

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

Ans 12:

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 13:

Class : Class 7

Ans 14:

Class : Class 6
estimate and then subtract

Ans 15:

Class : Class 7
first we should subtract and than estimate

Ans 16:

Class : Class 7
TH ANSWER IS B AGIAN B

Ans 17:

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

Ans 18:

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 19:

Class : Class 6
SUBTRACT AND THE ESTIMATE !!!

Ans 20:

Class : Class 7
The answer is A not B

Ans 21:

Class : Class 6

Ans 22:

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

Ans 23:

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

Ans 24:

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

Ans 25:

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

Ans 26:

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 27:

Class : Class 7
stop fighting

Ans 28:

Class : Class 6

Ans 29:

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

Ans 30:

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

Ans 31:

Class : Class 7
Seriously

Ans 32:

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 33:

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

Ans 34:

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 35:

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 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 8

Ans 38:

Class : Class 6
A

Ans 39:

Class : Class 6

Ans 40:

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

Ans 41:

Class : Class 6

Ans 42:

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

Ans 43:

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

Ans 44:

Class : Class 9
the ans is 4800

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