Mathematics 0580 · IGCSE · Limits of accuracy

Limits of accuracy — practice question

A rectangle has an area of $55.2\text{ cm}^2$, accurate to 1 decimal place. Its length is $9\text{ cm}$, rounded to the nearest cm.

(main)[3]

Calculate the upper bound for the width of the rectangle.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$6.5$” …