Mathematics 9709 · AS & A Level · Sampling and estimation

Sampling and estimation — practice question

(i)[3]

Determine the number of distinct ways to line up 6 boys and 4 girls when the 6 boys are all adjacent.

(ii)[3]

Find the number of distinct arrangements of 6 boys and 4 girls in a line if no girl is adjacent to another girl.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$6!$ or $5!$ shown multiplied by an integer $k \ge 1$” …

Full mark scheme, point by point
Step-by-step worked solution
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