Test Index

JAMB Mathematics 2019 Paper

Question : 62

Total: 73

Solution:

Concept:

Combination selection to form a committee of fixed size.

Explanation:
There are 5 committee positions.

If exactly 2 females are required, the remaining

3

members must be males.

Number of ways to choose 3 males from 4:

\binom{4}{3} = 4

Number of ways to choose 2 females from 3:

\binom{3}{2} = 3

Since both selections happen together, multiply the results:

4 \times 3 = 12

Answer:

12

ways.

Correct option: D. 12 ways.

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