Question

Rain is falling steadily at 5.2 millimeter per hour. How much rain fall in 90 minutes?

Answer 1

7.8 ml

Explanation:

1 hour = 5.2 ml of rain

90 mins = 1 hours and 30 mins

5.2 / 2 = 2.6

5.2 + 2.6 = 7.8