Question

A train goes at 78kph for 20 minutes. How long does it travel?

Answer 1

26 km

Explanation:

A train goes at 78kph for 20 minutes. How long does it travel?

• 1 hour = 60 minutes
• 20 minutes = 1/3 hour

so

78 * 1/3 =

26 km

Answer 2

26km

Explanation:

The train can travel 78km per hour or per 60 min

78 = 60

x = 20

Cross multiply:

(78)(20) = 60x

1560 = 60x

x = 26

Thus the train travels 26km in 20 min