Foundation November 2017 Paper 3 Q9

(a) Elsie changes \(\dfrac{3}{8}\) to a decimal.

This is her working.

\(\dfrac{3}{8}\) is \(\dfrac{1}{8}\) more than \(\dfrac{1}{4}\)
\(\dfrac{1}{4}\) is the same as 0.14
\(\dfrac{1}{8}\) is \(\dfrac{1}{4} \times 2 = 0.28\)
so \(\dfrac{3}{8} = 0.14 + 0.28 = 0.42\)

Where a line of working is wrong, write the correct working beside it. [3]

(b) Ali has 1 litre of squash.
He always mixes 0.05 litres of squash with 200 ml of water to make a glass of drink.

Find the total volume of the drink that Ali can make.
Give your answer in litres. [2]