International Maths Olympiad Forum By SOF Olympiad Trainer - Page 587

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 4

Ans 2:

Class : Class 8
a

Ans 3:

Class : Class 4
The question was so unclear.

Ans 4:

Class : Class 6
c

Ans 5:

Class : Class 4
C

Ans 6:

Class : Class 5
c

Ans 7:

Class : Class 6

Ans 8:

Class : Class 3
c

Ans 9:

Class : Class 3
C is the correct answer

Ans 10:

Class : Class 3
C

Ans 11:

Class : Class 9
A

Ans 12:

Class : Class 4
The picture is so unclear. Question is not fair. I marked A (60) because the question showed the temperature as between 78 and 79.

Ans 13:

Class : Class 3
Remove this question. The images are not clear and just confusing!! It doesn't test anything.

Ans 14:

Class : Class 3

Ans 15:

Class : Class 9
The answer is a as a is 60 and not c. C is 59 so it cannot be the answer. Please change the answer which you have written in correct answer.

Ans 16:

Class : Class 5
correct answer is a

Ans 17:

Class : Class 4

Ans 18:

Class : Class 4
THE IMAGE SHOWS THE TEMPERATURE AS 78.5 .. THE IMAGE IS NOT CLEAR.. QUESTION IS IN C NOT F.. ANSWER GIVEN IN SOLUTION IS IN F.. OPTIONS ARE ALSO MISTAKEN

Ans 19:

Class : Class 3
The picture of thermometer is blur.

Ans 20:

Class : Class 9
A

Ans 21:

Class : Class 9
The answer is a because it is 60 and not c. C is 59.

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 4
The correct answer is 4

Ans 2:

Class :
But its answer is 4

Ans 3:

Class : Class 4

Ans 4:

Class : Class 8
answer is 4

Ans 5:

Class :
the answer is six because 10-4

Ans 6:

Class : Class 4
Answer is 4 because when multiple with 23 by 14 we 322

Ans 7:

Class :
answer is 4

Ans 8:

Class :
correct answer is 4

Ans 9:

Class : Class 3

Ans 10:

Class : Class 8
yes answer is 4 from Mokshada sikachi

Ans 11:

Class : Class 3
The answer is 4 but they said the value of Q is dash less than 10.

Ans 12:

Class : Class 7
4 is correct answer

Ans 13:

Class : Class 7

Ans 14:

Class : Class 4
answer is 4

Ans 15:

Class : Class 5
CORRECT Answer is 4

Ans 16:

Class : Class 4
Answer is 4

Ans 17:

Class : Class 7
Ans is 4

Ans 18:

Class : Class 6
correct answer is 4

Ans 19:

Class : Class 4
Geet modi is a genius

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Subject :IMO    Class : Class 4

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 2
They are asking to round off the final sum, not round off the individual numbers and add. First sum, then round off the sum to nearest ten thousand. So the last 5 digits should be 99000 which is Option C.

Ans 2:

Class : Class 6
Option B)

Ans 3:

Class : Class 6
Ans is B because 3645279+2153467=5798746. 5798746 will be rounded to its nearest ten thousand, which is 5800000, since 98746 will be rounded to nearest ten thousand, which is 100000, 1 will be carried to the lakhs place, or, you can say that 3645279 and 2153467 will be rounded to the nearest ten thousand, which will be 3650000 and 2150000, respectively. 3650000+2150000=5800000.

Ans 4:

Class : Class 2
Ans is not B. Ten thousand is 5 digits place. Answer Should be C. B should be wrong. If they asked for rounding off to Lakhs place, then B is correct.

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Subject :IMO    Class : Class 8

Ans 1:

Class : Class 9

Ans 2:

Class :
The answer is 3. When you solve the equation you get 3*3*1*1*2*14/1*1*1. Now we see that the prime numbers left are 3,3 and 2. Therefore there are 3 prime numbers.

Ans 3:

Class : Class 8
Yes .... The answer is 4. ( 2, 3 ,5 and 7)

Ans 4:

Class : Class 8
the answer is 7.

Ans 5:

Class : Class 9
the answer is 4!!!

Ans 6:

Class : Class 8
The answer is 4. There are 4 prime factors: 2,3,5 and 7

Ans 7:

Class :
isn't the answer "A"

Ans 8:

Class : Class 10
ans is 4. (2,3,5,7)

Ans 9:

Class : Class 8
The answer should be option (A) = 4. There are 4 prime factors, i.e. 2, 3, 5 and 7. The solution contradicts the question's answer.

Ans 10:

Class : Class 6
the solution of the equation is 3*3*5*5*5*2*7 which has seven prime factors

Ans 11:

Class : Class 7

Ans 12:

Class : Class 5
ans is 7

Ans 13:

Class : Class 8
The answer is 4, not 3

Ans 14:

Class : Class 9
4

Ans 15:

Class : Class 9
The answer should be (A) 4.There are four factors, i.e. 2,3,5,7. Even the solution says so. Please correct the error.

Ans 16:

Class : Class 8

Ans 17:

Class :
The answer is 3. When you solve the equation you get 3*3*1*1*2*14/1*1*1. Now we see that the prime numbers left are 3,3 and 2. Therefore there are 3 prime numbers.

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Subject :IMO    Class : Class 3

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Subject :IMO    Class : Class 3

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 5
the answer is c

Ans 2:

Class : Class 4
solutions should be in detail and a little easy

Ans 3:

Class : Class 7
trick question

Ans 4:

Class : Class 4
10000

Ans 5:

Class : Class 6
The answer is (A) because it has said the minor 5-digit no.

Ans 6:

Class : Class 9
The answer is D .

Ans 7:

Class : Class 5
dfd

Ans 8:

Class : Class 3

Ans 9:

Class : Class 9
BIR you have written ten thousand instead of one thousand !!!

Ans 10:

Class : Class 6

Ans 11:

Class : Class 4
The answer is D

Ans 12:

Class : Class 8
man the answer is 10 lackhs

Ans 13:

Class : Class 8

Ans 14:

Class : Class 2
100 tens = 1 thousand

Ans 15:

Class : Class 9

Ans 16:

Class : Class 8
The answer is D- 1 thousand

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Subject :IMO    Class : Class 8

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 9
its more than easy D

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