Rainfall

The record for the most amount of rain in the shortest amount of time in the US was 12 inches in 42 minutes. How much rain fell in 15 minutes? 28 minutes?

 

12/42=0.285714.....inches per minute.

15 X 0.285714=4.28571 inches in 15 minutes

28 X 4.28571  =8 inches in 28 minutes.