Question

A recording of the current weather conditions last 3/4 minute. If the recording plays repeatedly , how many times would it play in 1 hour?

Answer 1

45 times

1 hour = 60 minutes

60 multiplied by 3/4 = 180/4 = 45

Answer 2

The recording repeated plays 80 times in 1 hour

Explanation:

A recording last
`(3)/(4)` mins

Let x be the number of times it repeats in 1 hour

Using ratio and proportion,

`1\:time=(3)/(4) mins\\ x\:times=1\: hour`

But
`1\:hr=60\:mins`

This implies that

`1\:time=(3)/(4) mins\\ x\:times=60\: mins`

`(3)/(4)x=60`

`x=(4*60)/(3)`

`x=80\:times`

Hence the recording repeatedly plays 80 times in 1 hour