Mathematics 0580 · IGCSE · Limits of accuracy

Limits of accuracy — practice question

Simone is making a fruit cake.
(a(i))[2]

Express the ratio sugar : butter : flour in simplest form.

(a(ii))[3]

Calculate the mass of each kind of fruit.

(b(i))[2]

Show that the cake's volume is 1600 cm$^3$, correct to 2 significant figures.

(b(ii))[2]

Calculate the length of one side of the base of this tin.

(c)[2]

Finish the statement giving the value of $m$. $\dots \le m < \dots$

(d(i))[2]

Calculate the kilocalories in one piece of cake.

(d(ii))[1]

Calculate the kilocalories in one piece of cake as a percentage of 2000 kcal.

Worked solution & mark scheme

This 14-mark question has a full step-by-step worked solution and mark scheme. One marking point: Accurate simplification

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