1.

In how many ways a team of 3 boys and 3 girls can be formed from 10 boys and 5 girls, if two particular B1 and B2 are not in team together:(1) 1115(2) 1120(3) 1280(4) 1220

Answer»

Correct option is (2) 1120

Total no. of way to select 3 boys and 3 girls = 10C3 - 5C3 = 1200

When particular boys B1 and B2 both are in team = 8C1.5C3 = 80

So required number of ways = 1200 - 80 = 1120



Discussion

No Comment Found

Related InterviewSolutions