Math

today in maths we did some ratios and to show how ratios are in real life we made Raro.

The proplems that we needed to do so we knew haw much we needed were

zMrs Stone bought the 80g packets of raro. Each packet makes 5 200ml servings. How many packets should she have bought for the class? the answer was 7

and If 80g of raro makes 5 servings, what is the ratio of raro to water for one serving?
80g: 1000ml
        : 200ml  the anwswer was 16