# User Forum Subject :IMO    Class : Class 5

## Ans 1:

Class : Class 4
it can be option B but there is an other formula. Add all the digits of all the 4 options. Option A,B,C would be 27 but option D would be 26. That makes the difference between option A,B,C with D. So the answer is option D.

## Ans 2:

Class : Class 6
b is even number but all other 3 are odd numbers so ans should be b

Class : Class 6
B

## Ans 4:

Class : Class 8
c and d as solution is given of adding digitsâºð¤

## Ans 5:

Class : Class 5

Subject :IMO    Class : Class 6

Class : Class 6

## Ans 2:

Class : Class 10

Corrected the question. Minus sign was missing

Solution:
David's current age = 3x -2
David's age eight years before = 3x -2 -8 = 3x - 10
Sally's age = David's age eight years before = 3x -10
Sally's age after 4 years = 3x - 10 + 4 = 3x -6

Subject :IMO    Class : Class 5

## Ans 1:

Class : Class 9
66 plus 82 is 148 and only 120 bags are there so 148 minus 120 , 28 red haversacks will be there

Subject :IMO    Class : Class 10

## Ans 1:

Class : Class 10
5%

Subject :IMO    Class : Class 6

## Ans 1:

Class : Class 8
the sum of the square of every numbers are the numbers given at the below

Subject :IMO    Class : Class 4

Class : Class 4

## Ans 2:

Class : Class 5
yeah answer is b saturdaybecause 1 month from19 december is 18 jan

Class : Class 5

Class : Class 4

Class : Class 5

Class : Class 4

Class : Class 4
super dveep jain

Class : Class 5

## Ans 9:

Class : Class 4

Subject :IMO    Class : Class 4

Class : Class 7

## Ans 2:

Class : Class 7
It will be c Both of you are right.

## Ans 3:

Class : Class 4
I agree with Noida

Class : Class 1

Subject :IMO    Class : Class 7

Class : Class 7
option a

## Ans 2:

Class : Class 8
the correct answer is B. there are two small semicircles that form one circle when joined. so after joining it forms 1 circle with a diameter of 14 which means it has a radius of 7. area= 7*7*(22/7)= 154 in the big semicircle it has a diameter of 28 which means it has a radius of 14. area = (14*14*22)/(7*2) = 616 area of shaded part = 616-154= 462 thus the correct option is B

Class : Class 10

## Ans 4:

Class : Class 7
yes it should be 154

Subject :IMO    Class : Class 6

## Ans 1:

Class : Class 8
i think that the sum of all numbers accept 3 are even but they told that i am wrong

Class : Class 8
see the solution