International Maths Olympiad Forum By SOF Olympiad Trainer

# User Forum

Subject :IMO    Class : Class 10

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Subject :IMO    Class : Class 2

## Ans 1: (Master Answer)

Class : Class 1
Kindly mention your query

Class : Class 2
B

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Subject :IMO    Class : Class 5

## Ans 1: (Master Answer)

Class : Class 1
Here, the answer is A. 7 tenths is 7 over 10, if you divide 7 by 10 you get 7 tenths as a decimal which is 0.7 Similarly, 45 tenths is 45 over 10,if you divide 45 by 10 you get 45 tenths as a decimal which is 4.50 21 hundredths is 21 over 100, if you divide 21 by 100 you get 21 hundredths as a decimal which is 0.21 Hence, the sum of 7 tenths, 21 hundredths and 45 tenths is (0.7 + 0.21 + 4.50) = 5.41

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Subject :IMO    Class : Class 8

Class : Class 9
i got 5

## Ans 2:

Class : Class 9
a2 - 13a + 30 = a2 + 4a + 4 a - 10 a + 2 => (a2 - 13a + 30)(a + 2) = (a2 + 4a + 4)(a - 10) => a3 + 2a2 - 13a2 - 26a + 30a + 60 = a3 - 10a2 +4a2 + 4a - 40 => - 11a2 + 4a + 60 = - 6a2+ 4a - 40 => - 11a2 + 6a2 + 60 + 40 = 0 => - 5a2 + 100 = 0 => 5a2 = 100 => a2 = 20 => a = √20 Insert the value of'a'and you will get the answer.

Class : Class 8

## Ans 4:

Class : Class 9
but that is not what we want

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Subject :IMO    Class : Class 4

Class : Class 4

Class : Class 6
A

Class : Class 5

Class : Class 3

Class : Class 4

Class : Class 4

Class : Class 8
A

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Subject :IMO    Class : Class 4

Class : Class 4
Option B

Class : Class 4
Class:Yes

Class : Class 4
B

Class : Class 8
i've done (B)

## Ans 5:

Class : Class 4
How to identify the left and right side referred in question?

Class : Class 4
B

Class : Class 5
a

Class : Class 1
C

Class : Class 5
b

Class : Class 2

## Ans 11:

Class : Class 5
oh its not correct question?

## Ans 12:

Class : Class 5
Whoever gets this question wrong should fail in level 2 mathematics

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Subject :IMO    Class : Class 6

## Ans 1:

Class : Class 8
D ,FIRST CALCULATE THE SUM

Class : Class 7

## Ans 3:

Class : Class 8
But this time it is d

Class : Class 6

Class : Class 7

## Ans 6:

Class : Class 6
hey! last time it was a

Class : Class 7
D

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Subject :IMO    Class : Class 7

Class : Class 7

Class : Class 7
d

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Subject :IMO    Class : Class 6

## Ans 1:

Class : Class 6
ahana dalmia, they said 8 LESS than -24 which is -32 not 8 MORE than -24

## Ans 2:

Class : Class 6
Correct ans is A......agree with anika..

## Ans 3:

Class : Class 6
it is -16 not -32

## Ans 4:

Class : Class 6
ahana read the sum correctly...plz.....

## Ans 5:

Class : Class 6
how is this a it is c

Class : Class 6
the answer is A

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Subject :IMO    Class : Class 4

## Ans 1:

Class : Class 4
I is not require in front of X ,when after X we have IV

## Ans 2:

Class : Class 4
C is the correct answer I is not required

## Ans 3:

Class : Class 8
C is the correct answer because IXIV is not considered as a roman numeral

## Ans 4:

Class : Class 4
IXIV is not a roman numeral

Class : Class 4

Class : Class 4