Answer
a. $1$ pages in $1.2$ seconds
b. $1.2\times x$ seconds
c. $144$ seconds
Work Step by Step
$Rate=\frac{50 pages}{1 minute}=\frac{50 pages}{60 seconds},$
(a). Dividing both the numerator and the denominator by $50,$ $\frac{1pages}{1.2seconds}$ we get. Therefore, $1$ pages in $1.2$ seconds.
(b). For $1$ pages in $1.2$ seconds, copying $x$ pages will be in $1.2\times x$ seconds.
(c). When $x=120$ pages, copying will be in $1.2(120)=144$ seconds.
