Page 19 - Digi notes maths

www.mahendraguru.com

C 4  1365
15

C 4 20475
28

10) All balls of the same colour.

C  C  C  C  C 4  5 15 1 35 15   
5 6 4 7 6
4
4
4
4
C 4 20475
28
 71
20475

11) All balls of different colours excluding orange colour.
C  C  C  C 4 5 15 1 35   2625
5 6 4 7
4
4
4
C 4 20475 20475
28  
12) At least 2 yellow balls.

C  C  C  C  C  C 0
4 24 4 24 4 24
3
4
1
2
2
C 4
28
 6 276 4 24 1 1    
20475

 1801
20475

13) At least 1 green ball.

28 C  21 C 14490
Total None  4 4 
C 4 20475
28

14) At most 2 blue balls.

Page 19 of 20
www.mahendraguru.com