Question

A copy machine makes 32 copies per minute. How long does it take to make 136 copies?

Answer 1

Answer: 4 mins 15 seconds (4.25 mins)

Explanation:

136 copies/32 copies per minute = 4.25 minutes

So we know it will take 4.25 mins. 4.25 mins is equal to 4 mins and 15 seconds.

Answer 2

4.25 minutes

Explanation:

`(32 \:copies)/(1\:min) = (136\: copies)/(x \: min) \\\\x\: min = (136 \: copies)/(32 \: copies) \\\\x=4.25 \: min`