Question

Lixin can type 2400 words in 3 hours. Find how many words can he write in 40 minutes.

Answer 1

533

Explanation:

3 hours = 180 minutes

2400 : 180 = x : 40

x = 2400 * 40 / 180

x = 2400 * 4 / 18

x = 2400 * 2 /9

x = 800 * 2 / 3

x = 1600/3

x = 533.333333

x = 533