Question

A typist take 90 minutes to type 36 pages how long will she take to type 315 pages

Answer 1

Step-by-step explanation:

it is a case of direct propogation

Time taken to finish 36 pages =

90 min.

time taken to finish 315 pages =?

x1/y1=x2/y2

$\frac{36}{90} = \frac{315}{y2}$

$36y2 = 315 \times 90$

$y2 = \frac{28350}{36} = 787 min$

Answer 2

Time taken for one page = 90÷36=2.5 min

Time taken for 315 pages =

315 ×2.5=787.5 min

And=787.5 min