Mathematics 4024 · O Level · Averages and measures of spread

Averages and measures of spread — practice question

Ali, Ben and Chris have a mean age of $14$ years $3$ months, while Dai is $15$ years and $3$ months old.

(main)[2]

Calculate the mean age for the four people.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$14\,\text{years}\,6\,\text{months}$” …