Question

Find the ratio between the cost of a pencil and that of a ball pen when the pencils cost Rs. 16 per score and the ball pens cost Rs.14.40 per dozen. (1 score=20 items)

Answer 1

cost of each ✒ = rs 0.8
cost of each pen = rs 1.20
ratio =0.8/1.2=2:3

Answer 2

price of a single pencil-

$16 \div 20 = 0.8$

price of a single ball pen-

$14.40 \div 12 = 1.2$

ratio of cost of pencil and a ball pen is

[tex] \frac{0.8}{1.2} [/text
ratio=2:3