NEST2012MathematicsPermutation and Combination
The number of ways of choosing 2 boys and 2 girls in a class for a game of mixed doubles is 1620 . Then, the number of ways of choosing 2 students in the class is
Options
- A153.
- B171.
- C182.
- D212.
Correct answer
B. 171.
Step-by-step solution
No solution available.