The question provides that there are 15 boys and 10 girls from which a committee of 3 boys and 2 girls is to be formed.
QUESTION I
The number of ways the committee can be chosen when there is no restriction can be calculated as follows:
Number of ways to pick 3 boys from 15:

Number of ways to pick 2 girls from 10:

Therefore, the number of ways the choice can be made will be:

QUESTION II
If a particular boy is included, the number of choices will then become:

Therefore, the number of ways the choice can be made will be:

QUESTION III
If a particular girl is excluded, the number of choices will be:
![undefined]()