Question

A farm has sheep,pigs and cows at a ratio of 8:3:2. There are 10 cows, how many pigs and sheep are there

Answer 1

15 pigs and 40 sheep

10 cows is equivalent to 2 parts of the ratio, hence

$\frac{10}{2}$ = 5 ← 1 part of the ratio, hence

8 parts = 8 × 5 = 40 ← number of sheep

3 parts = 3 × 5 = 15 ← number of pigs