# User Forum Subject :IMO    Class : Class 3

## Ans 1:

Class : Class 3
Given: 1) Pens brought = 458 pens. 2) Pens lost = 78 pens. 3) Pens brought again = 47 pens. Solution: Mr. Joan brought 458 pens but lost 78 of them, Therefore, He has 458 - 78 = 380 pens. But, He again goes to shop and bought 47 pens. So, He has 380+47 = 427 pens. Ans. Mr. Joan has 427 pens.

Subject :IMO    Class : Class 1

Subject :IMO    Class : Class 1

Subject :IMO    Class : Class 2

Class : Class 5
24 zeros

## Ans 2:

Class : Class 5
24 zeros

Subject :IMO    Class : Class 5

Class : Class 5
12 metres

Class : Class 5
12 metres

Class : Class 6

## Ans 4:

Class : Class 5
formulae of length is area divided by breadth so 6 divided by 72 is 12 and ans is also 12

Class : Class 9
12 metres

## Ans 6:

Class : Class 8
Area of rectangle = l * b 72 = l * 6 l = 72/6 = 12 Length = 12m

## Ans 7:

Class : Class 9
12 metres

Subject :IMO    Class : Class 2

Class : Class 5
1890000000

## Ans 2:

Class : Class 10
189000000 or 189 million.

Subject :IMO    Class : Class 7

## Ans 1:

Class : Class 10
Percentage means calculating per 100. P=numerator÷denomina-tor × 100 Suppose there are 6boys out of a class containing 12 students.Then the percentage of boys would be 6÷12 ×100 =50%.I Hope it will help you.

## Ans 2:

Class : Class 8
a rate, number or amount in hundreds

Subject :IMO    Class : Class 7

## Ans 1:

Class : Class 8
1st december or 12th december. you can ask from your school teachers.

## Ans 2:

Class : Class 8
1st december or 12th december. you can ask from your school teachers.

Subject :IMO    Class : Class 9

## Ans 1:

Class : Class 10
You cannot divide any number having it's denominator as 0. That is so because, 0 * anything = 0. So, when you have a number like 5/0, you don't have an answer because 0*5 = 0, etc. Also, 0/0 is also undetermined. Because 0 * Any number = 0. Therefore 0*2=0; 0*3=0, etc. Therefore you cannot have a definite answer. As for 0^0, it is equal to 1. You can check in calculator. Any number raised to the power 0 = 1. Hope this helps.