R2 | Maths Made Easy


QUESTION: Wes is making pancakes using the recipe outlined below. Work out the number of eggs, and the amounts of flour and milk needed to make 21 pancakes.

ANSWER: This recipe makes 6 pancakes, but Wes wants to make 21.

21\div 6=3.5

Therefore, he needs to 3.5 times as much of every ingredient. So, we get

\text{flour: }100\times 3.5=350\text{ g}

\text{eggs: }2\times 3.5=7\text{ eggs}

\text{milk: }300\times 3.5=1,050\text{ ml}