- A252
- B231
- C105
- D210
Step-by-Step Solution
All groups: . Groups with no girl (all from 7 boys): . At least one girl: .
Answer: B) 231
Out of 10 students, 3 are girls. A group of 5 is to be chosen with at least one girl. How many groups are possible?
Competition practicePermutations & Combinations
Master this topic in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Permutations & Combinations practice questions
More Permutations & Combinations practice
A 4-digit code for a lock uses the digits 1 to 6, all different and written in…A car has 6 seats, one of them the driver's seat. Six family members travel in it, and…A set of 6 parallel lines is crossed by another set of 5 parallel lines, as in the…Eight players are to be split into 4 pairs for a doubles badminton practice. In how many…Ten identical pens are given to 4 students; a student may get no pen. In how many ways…