Mathematics 0580 · IGCSE · Ratio and proportion

Ratio and proportion — practice question

$F$ varies directly with the product of $m$ and $a$.
(main)[3]

Work out the percentage change in $F$ when $m$ rises by 40% and $a$ falls by 15%.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Accurate percentage method” …

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