Question

4 dices are rolled , in how many ways a sum of 10 can be obtained if exactly 2 dices show the same number

Answer 1

1. if the the two dices r 2 and 3
no ways=2^4=16
2. if d two nos. are 4 and 1
no. of ways=2^4=16
total no of ways=16+16=32