Subject :IMO Class : Class 6

Subject :IMO Class : Class 6

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Subject :IMO Class : Class 6

## Post Your Answer

Subject :IMO Class : Class 4

## Ans 9:

Class : Class 4

The common factors of 40 and 70 are 2,5 and 10 which are same as common factors of 10 and 40. (2,5,10) and hence answer B is correct.

## Ans 13:

Class : Class 6

actually,they are asking which one has the same relationship as 40 and 70 which is 10 and 40 so, B is the correct answer

## Post Your Answer

Subject :IMO Class : Class 4

## Ans 2:

Class : Class 8

Raj's age = x.
x + 4x + ( x - 6 ) = 72,
or 5x + ( x - 6 ) = 72,
or 5x + x - 6 = 72,
or 6x - 6 = 72,
or 6x = 72 + 6,
or 6x = 78
or x = 78/6
or x = 13, so Raj is 13 years old. Shilpa is 13 x 4 = 52 years old. Riya is 13 - 6 = 7 years old. Shilpa is 52 - 7 = 45 years older than Riya, so answer is B.

## Ans 3:

Class : Class 10

Answer: D

Solution

Let age of Shilpa, Raj and Riya be S, R, and Ri respectively

Then

S = 4R

Ri = R - 6

S + R + Ri = 72

or

4R + R + R - 6 = 72

6R = 66

R = 11

S = 44

Ri = 5

So Shilpa is (44- 5) 39 years older than Riya

Solution

Let age of Shilpa, Raj and Riya be S, R, and Ri respectively

Then

S = 4R

Ri = R - 6

S + R + Ri = 72

or

4R + R + R - 6 = 72

6R = 66

R = 11

S = 44

Ri = 5

So Shilpa is (44- 5) 39 years older than Riya

## Ans 4:

Class : Class 5

The step written by you
4R + R + R - 6 = 72
6R = 66
This step is wrong. As 6 will be added to 72 and NOT SUBTRACTED.
hence, 6R = 78

## Ans 5:

Class : Class 4

Riya is younger to Raj therefore she is also younger to Shilpa.
let Raj be 'x' . Shilpa = 4x and Riya is x-6. {x+ 4x + x-6 = 72} or 6x - 6 =72 or 6x = 78 or x= 13

## Ans 6:

Class : Class 10

Shilpa_Age = 4* Raj_Age --- (1)
Riya_Age = Raj_Age - 6 --- (2)
Shilpa_Age + Raj_Age + Riya_Age = 72
This can be rewritten as, (from (1) and (2))
4*Raj_Age + Raj_Age + Raj_Age - 6 =72
6*Raj_Age = 78
Raj_Age = 78/6 = 13
Therefore,
Shilpa_Age = 4*13 = 52
Riya_Age = 13 - 6 = 7
Therefore, Shilpa is 52 - 7 = 45 years elder than Riya
Option (B)

## Post Your Answer

Subject :IMO Class : Class 3

## Ans 1:

Class : Class 5

I had the same problem. 42.2 cm is given twice in the options and the answer is marked wrong if u choose one of them (I forget which one). Pls rectify this error.

## Ans 3:

Class : Class 10

Answer : D

There was a mistake in option B which has been corrected.

Solution

2 mm = .2 cm

42cm + 2 mm = 42cm + .2cm = 42.2cm

There was a mistake in option B which has been corrected.

Solution

2 mm = .2 cm

42cm + 2 mm = 42cm + .2cm = 42.2cm

## Ans 4:

Class : Class 10

Answer : D

There was a mistake in option B which has been corrected.

Solution

2 mm = .2 cm

42cm + 2 mm = 42cm + .2cm = 42.2cm

There was a mistake in option B which has been corrected.

Solution

2 mm = .2 cm

42cm + 2 mm = 42cm + .2cm = 42.2cm

## Post Your Answer

Subject :IMO Class : Class 4

## Ans 1:

Class : Class 5

No,its 3. The common factors are 1,2,3,4,6,12. But the factors that are also multiples of 3 are 3, 6 and 12

## Ans 2:

Class : Class 10

Answer : A

Solution

3,6,12 are three common factors of 36 and 96 which are also multiple of 3.

Hence the answer is 3 numbers.

The questions is 'how many numbers' and not 'which numbers'.

Solution

3,6,12 are three common factors of 36 and 96 which are also multiple of 3.

Hence the answer is 3 numbers.

The questions is 'how many numbers' and not 'which numbers'.

## Ans 3:

Class : Class 10

Answer : A

Solution

3,6,12 are three common factors of 36 and 96 which are also multiple of 3.

Hence the answer is 3 numbers.

The questions is 'how many numbers' and not 'which numbers'.

Solution

3,6,12 are three common factors of 36 and 96 which are also multiple of 3.

Hence the answer is 3 numbers.

The questions is 'how many numbers' and not 'which numbers'.

## Ans 6:

Class : Class 8

factors of 36 are 1,2,3,4,6,9,12,18,36
factors of 96 are 1,2,3,4,6,8,12,24,32,48,96
common 1,2,3,4,6,12
multiple of 3 - 3,6,12
ans is A

## Ans 7:

Class : Class 9

Answer : A Solution 3,6,12 are three common factors of 36 and 96 which are also multiple of 3. Hence the answer is 3 numbers. The questions is 'how many numbers' and not 'which numbers'.

## Ans 8:

Class : Class 4

Ans is A
Factors of 36 & 96 are 2,3,6 &12
from the above three numbers are multiples of 3 i.e 3, 6, 12

## Post Your Answer

Subject :IMO Class : Class 4

## Ans 2:

Class : Class 4

The correct answer must Hospital as 3/4 turn clockwise takes to the Cinema and Hospital is opposite of the Cinema. The answer will cinema if she takes anticlockwise turn instead of clockwise

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Subject :IMO Class : Class 4

## Ans 1:

Class : Class 5

ACCORDING TO ME THE ANSWER SHOULD BE 3144 m,SINCE, 1300 m 272 m = 1572 m and 1572 m *2= 3144 m.PLEASE CHECK THE ANSWER.

## Ans 2:

Class : Class 10

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