Question

a typist type 12 pages in 40 minutes how long will it take to type 80 pages ?​

Answer 1

X1 = 40 min y1 =12 pages

X2=80 min y2=?????

As time is increasing so the number of pages also increase

Therefore, by direct variation

X2/x1 = y2/y1

80/40 = y2/12

2 = y2/12

2×12 =y2

Y2 = 24

So in 80 minutes he will type 24 pages