Question

The number of ways in which a mixed doubles tennis game be arranged between 10 players consisting of 6 men and 4 women?

• A. 180
• B. 90
• C. 48
• D. 12

Answer 1

Answer: (A)

180

Answer 2

Selection of two men = ⁶C₂ = 15

Selection of two women = ⁴C₂ = 6

Each selection of 2 men and 2 women gives 2 mixed games.

Total ways = 15 × 6 × 2 = 180