# User Forum

Subject :IMO    Class : Class 1

Class : Class 1

Subject :IMO    Class : Class 1

Class : Class 1

Subject :IMO    Class : Class 5

## Ans 1:

Class : Class 5
56/3÷8/3 56/3*3/8 56/8 =7

## Ans 2:

Class : Class 6
A

Subject :IMO    Class : Class 3

## Ans 1:

Class : Class 4
TOUGH FOR CLASS 1

## Ans 2:

Class : Class 3
Using Factorial for Class 3 seems difficult. I taught my daughter as under:- Step 1 - Put 7 at thousand place and how many different numbers we can get --She replied 6 Step 2- Put 5 at thousand place and how many different numbers we can get --She replied 6 Step 3 -Put 0 at thousand place , do we get four digit number --She replied NO Ste 4 - Put 2 at thousand place and how many different numbers we can get --She replied 6 Step 5 - Add numbers obtained in above steps we get 18

Class : Class 3

## Ans 4:

Class : Class 3
n!-(n-1)! is the answer. n is number of digits here. (n-1)! is subtracted from n! since there is digit with 0. otherwise it is just n! Now How do you calculate n!. For example 4! here. 4! = 4x3x2x1 = 24 (4-1)! = 3! = 3x2x1 = 6 Hence the answer is n! - (n-1)! = 4! - (4-1)! = 4! - 3! = 24 -6 = 18 Option D is the answer.

## Ans 5:

Class : Class 3
(D) 18

Subject :IMO    Class : Class 3

Class : Class 3
c

## Ans 2:

Class : Class 3
(C) 7 tables

Subject :IMO    Class : Class 5

Class : Class 7
D

## Ans 2:

Class : Class 6
Rectangle have 2 line of symmetry only so answer should be C

Subject :IMO    Class : Class 6

## Ans 1:

Class : Class 6

Subject :IMO    Class : Class 7

Class : Class 1

Subject :IMO    Class : Class 4

## Ans 1:

Class : Class 5
If your setup box is tata sky then I think 457

Subject :IMO    Class : Class 4

## Ans 1:

Class : Class 6
It is B %100 sure 23+32=53=5.5 Even if it is confusing the answer is B itself.

Class : Class 4
B

## Ans 3:

Class : Class 6
It is B %100 sure 23+32=53=5.5 Even if it is confusing the answer is B itself.

## Ans 4:

Class : Class 2
Make the figures as complete fractions, then bring the denominator as the same values and then solve