International Maths Olympiad Forum By SOF Olympiad Trainer

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Subject :IMO    Class : Class 1

## Ans 1:

Class : Class 1
Gargi Muley From Bethay Jr. school-1, Koramangala, Bangalore.Answer should be PQRS Please explain why not R

Class : Class 1
P Q R S

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Subject :IMO    Class : Class 5

## Ans 1:

Class : Class 6
The answer is wrongly given at the back . It should be C

## Ans 2:

Class : Class 5
1 is a factor of every number not a multiple . there is no such number as the smallest multiple of a number is the number itself

## Ans 3:

Class : Class 3
how can 1 be a multiple of a number accept 1 itself . I suggest the human to write all tables 1000 times

## Ans 4:

Class : Class 5
one is not a multiple of every number , but every number is a multiple of one, . zero is not a multiple of every number . answer is definitely C

## Ans 5:

Class : Class 5
the question is the wrongthe correct option is cand the smallest multiple of every number is the number it itself

## Ans 6:

Class : Class 4
The answer should be C

## Ans 7:

Class : Class 5
0 is the only answer

## Ans 8:

Class : Class 5
The answer is definitely c "There is no such number" as 0 is not a natural number but a whole number. Secondly though 1 is a natural number it is only a multiple of itself and not a multiple of every number.

Class : Class 5
0 is the answer

Class : Class 5
Maybe c

Class : Class 3
foolish

Class : Class 3

Class : Class 5

Class : Class 5

## Ans 15:

Class : Class 6
zero is not a natural number, so A is incorrect. The correct answer must be D

## Ans 16:

Class : Class 5
you guys are right

## Ans 17:

Class : Class 6
the smallest multiple of a number is itself

## Ans 18:

Class : Class 6
Is 0 a natural number? Well 1 can never be the MULTIPLE of every number. 1 is the multiple of only itself.

## Ans 19:

Class : Class 3
SOF should correct the answer it can create confusion among the kids 0 is a whole number, 1 is factor of every number so definitely there is no such number whose multiple is 1

Class : Class 5

## Ans 21:

Class : Class 3
The answer should be C. If it was a whole number, then it would have been 0. The question seems to be framed wrongly. The question should have been, " The natural number which is a factor of every number is 1". The answer is wrong.

## Ans 22:

Class : Class 6
Answer will be 0 because 2*0=0,5653453*0=0,4765868756733465358678757646535436536854786*0=0

Class : Class 5
the answer is c

## Ans 24:

Class : Class 3
the correct answer is c

Class : Class 6
nope!

Class : Class 3
The answer is C

## Ans 27:

Class : Class 6
the correct answer should be option c.

Class : Class 7
0 is the answer

## Ans 29:

Class : Class 4
the answer is c because 0 is a natural number and 1 is the only multiple of itself

## Ans 30:

Class : Class 5
Answer should be corrected, 1 is factor of any number, but not multiple of every number. Correct answer is C.

## Ans 31:

Class : Class 5
Correct answer should be C. 1 is a natural number but it's not multiple of every number, rather it's factor of every number.

## Ans 32:

Class : Class 4
Kavya Vikas Gatkal from Podar International School JalnaThe answer is c because 1 is a factor of every number not a multiple

Class : Class 5

Class : Class 5
0 is the answer

Class : Class 7
nope

Class : Class 5
nope

## Ans 37:

Class : Class 9
the answer should be c because 1 is a factor of every number and the smallest multiple of any number is the number itself

Class : Class 5

## Ans 39:

Class : Class 6
There is no such number.

## Ans 40:

Class : Class 5
the ans is c because 1 is a factor of every no. not a multiple.the answer would be 0 if they asked for a whole no.

## Ans 41:

Class : Class 6
Ans is because 0 is not a natural number and 1 is a factor of every number not a multiple

## Ans 42:

Class : Class 5
0 is the answer but it is showing 1 as answer. Problem!

## Ans 43:

Class : Class 6
0 is not a natural number

## Ans 44:

Class : Class 7
in fact C should be the correct answer as there can not be any such number. By taking D as the correct answer we are ,at the same time, denying the statement given at C.

## Ans 45:

Class : Class 5
The answer is C. One is not a multiple of every number

## Ans 46:

Class : Class 6
THERE IS NO SUCH NUMBER. THE SMALLEST MULTIPLE OF A NUMBER IS THE NUMBER IT SELF.

Class : Class 6
0 is the answer

## Ans 48:

Class : Class 5
the answer is obviously C because 0 is the only number which is it but it is a whole number

## Ans 49:

Class : Class 5
Answer is D. 1 is not a multiple but factor of all natural numbers.

Class : Class 5
it may be c or d

Class : Class 5
The answer is C.

## Ans 52:

Class : Class 5
The correct answer is C

Class : Class 6
the answer is c

Class : Class 4
The answer is C.

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Subject :IMO    Class : Class 3

Class : Class 3
d

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Subject :IMO    Class : Class 2

Class : Class 2

Class : Class 3
A

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Subject :IMO    Class : Class 2

Class : Class 2
i

Class : Class 2

Class : Class 2

Class : Class 2

Class : Class 2

Class : Class 2

## Ans 7:

Class : Class 2
i am prime minister Modi ,i can't understand this question.

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Subject :IMO    Class : Class 4

## Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 7

Class : Class 8

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Subject :IMO    Class : Class 6

Class : Class 6
C

## Ans 2:

Class : Class 6
They asked to revers the alphabet order and cancel all the letters alternately starting from Y,so the letters cancelled will be Y,W,U,S,R,Q,O,M,K,I,G,E,C and A ,so the remaining letters will be Z,X,V,T,R,P,N,L,J,H,F,D, and B, so N is in the middle of the remaining alphabets