Question

A copy machine makes 32 copies per minute. How long does it take to make120 copies?

Answer 1

`3.75\ \mathrm{minutes}`

Explanation:

`\mathrm{Solution:}\\\mathrm{32\ copies\ need\ 1\ minute\ to\ be\ made.}\\\mathrm{1\ copy\ needs\ (1)/(32)\ minute\ to\ be\ made.}\\\mathrm{\therefore \ 120\ copies\ need\ (1)/(32)* 120\ minutes\ to\ be\ made.}\\=3.75\ \mathrm{minutes}`