International Maths Olympiad Forum By SOF Olympiad Trainer - Page 59

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Subject :IMO    Class : Class 9

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 4

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Subject :IMO    Class : Class 1

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Subject :IMO    Class : Class 8

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Subject :IMO    Class : Class 8

Ans 1:

Class : Class 8
This question is falsely stated

Ans 2:

Class : Class 8
this question right or wrong idk . hi

Ans 3:

Class : Class 8

Ans 4:

Class : Class 8

Ans 5:

Class : Class 8
Its so wrong please correct it ok.JUst do it

Ans 6:

Class : Class 8
The question says 392 which should be multiplied by 7 to get a perfect cube. 7 is not in the option and the solution has a different number and shows that the number is divided by 2 to get a perfect cube. The question, options and solution are all contradictory. Kindly rectify sof.

Ans 7:

Class : Class 8
yes

Ans 8:

Class : Class 8
The question says that 392 should be multiplied with the smallest no. to make it a perfect cube. When we prime-factorise 392, we get 2*2*2*7*7. In order to make this number a perfect cube, we need to multiply it with 7 to get a perfect cube of 14. The answer to this question should be 7. However, there is no option which has 7. Also, the solution to this question is completely different from the question. SOF, kindly rectify this error, since the question, options and solutions are different from each other.

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 5

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Subject :IMO    Class : Class 5

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Subject :IMO    Class : Class 10

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 3
answer should be c

Ans 2:

Class : Class 3

Ans 3:

Class : Class 3
ANWSER: C X@

Ans 4:

Class : Class 3

Ans 5:

Class : Class 3

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