International Maths Olympiad Forum By SOF Olympiad Trainer

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Subject :IMO    Class : Class 4

Class : Class 3

Class : Class 3

Class : Class 3

## Ans 4:

Class : Class 5
The place of 8 and 4 in the number 78045 is 8000 and 40 respectively. 8000-40=7960So the answer is B

Subject :IMO    Class : Class 3

## Ans 1:

Class : Class 3

Subject :IMO    Class : Class 1

Class : Class 5
hi

## Ans 2:

Class : Class 8
Smallest odd number = 1 4 more than the smallest odd number is 5 â´ First digit is 5 Factors of 2 are 1, 2 Factors of 11 are 1, 11 Common factor of 2 and 11 is 1 â´ Second digit is 1 Product of first two digits = 1 Ã 5 = 5 â´ Third digit is 5 Single digit multiple of 6 is 6 itself. â´ Fifth digit is 6 Now, sum of fourth digit and fifth digit is 9. â´ Fourth digit = 9 - 6 = 3 â´ Required number = 51536

Subject :IMO    Class : Class 5

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Subject :IMO    Class : Class 5

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Subject :IMO    Class : Class 8

Class : Class 8

Class : Class 8
c

## Ans 3:

Class : Class 8
Answer is option c because rational no.s are associative under additional and multiplication only

Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 5

## Ans 1:

Class : Class 4
the correct answer is (c)

## Ans 2:

Class : Class 5
AL=2,KJ=2,IH=2,GF=2,ED=2.SO,2 2 2 2 2=10.BC=10so10 10=20breadth=7x2=14so20 14=34how can option C be correct

Subject :IMO    Class : Class 3

Class : Class 3

## Ans 2:

Class : Class 3
SolutionExcept (B) all the three are spherical balls.