Question

If 8 pens cost rs144 find cost of 14 pens by proportion formula

product of means = product of extremes​

Answer 1

Answer:

252

Step-by-step explanation:

let cost of 14 pens be X.

Then,

8x=144×14

X=36×7

X=252

Answer 2

Answer:

252

Step-by-step explanation:

let 14 pens be x

8=144

14=x

then

8/14= 144/x

14*144/8

= 252