Mathematics 0580 · IGCSE · Limits of accuracy

Limits of accuracy — practice question

A car covers 14 km, measured to the nearest kilometre. The journey lasts 12 minutes, measured to the nearest minute.
(main)[3]

Calculate the lower bound for the car's speed. Give your answer in kilometres per minute.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Correct use of bounds method” …

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