Exercises for students

Solve the following problems on paper and check your working using the above application:

Find the number of ways of selecting 3 children from 5 children

(i) if there are no restrictions

(ii) if 2 particular children must be included

Find the number of teams of 11 that can be selected from 15 players

(i) if there are no restrictions

(ii) if the 2 youngest players are to be included

Find the number of teams of 6 that can be selected from 10 players

(i) if both of the 2 oldest players are to be included

(ii) if at most 1 of the 2 oldest players are to be included

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