Question

Find the ratio of the price of a pencil to that of a ball pen if pencils cost Rs 96 per score and ball pens cost Rs 50.40 per dozen.

Answer 1

Price of pencil = Rs 96 per score

Price of ball pen = Rs 50.40 per dozen

1 score = 20

20 pencils cost = Rs 96

Price per unit of pencil = `96/20` = 4.8

Price per unit of ball pen = `50.40/12` = 4.2

Ratio = `4.8/4.2=48/42=(48 ​÷ 6)/(42 ​÷ 6)=8/7`

Price of a pencil : Price of a ball pen = 8 : 7