Question

The ratio of black socks to white socks in the sock drawer is 3:4. There are 30 black socks. How many white socks are there?

Answer 1

40

Explanation:

The 3 part of the ratio 3 : 4 represents 30 black socks, thus

30 ÷ 3 = 10 ← value of 1 part of the ratio , thus

4 parts = 4 × 10 = 40 ← number of white socks