During a home science lesson,grade 8 learners mixed sugar and wheat flour in the ratio 1:5 respectively. If they used 40 grams of sugar, what was the mass if the wheat flour used

The ratio of sugar to flour is 1:5, which means that for every 1 part of sugar, there are 5 parts of flour.

Since they used 40 grams of sugar, we can calculate the mass of flour used as follows:

1 part of sugar = 40 grams
5 parts of flour = 5 x 40 grams = 200 grams

Therefore, the mass of wheat flour used was 200 grams.