Mathematics 4024 · O Level · Introduction to algebra

Introduction to algebra — practice question

A museum is visited by $40$ adults and $20$ children on Monday. On Tuesday, $30$ adults and $35$ children go there. An adult ticket costs $\$2.50$ and a child ticket costs $\$2$. The matrices $M$ and $N$ may be used to show this information.
(a(i))[2]

Calculate $MN$.

(a(ii))[1]

Explain what the figures in your answer to part (a)(i) mean.

(b)[2]

The museum raises the ticket prices by $10\%$. Complete matrix $P$ to show the updated ticket costs.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: $\left(\begin{matrix}140\\145\end{matrix}\right)$

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI