Question

Cost of a dozen pens is ₹ 180 and cost of 8 ball pens is ₹ 56. Find the ratio of the cost of a pen to the cost of a ball pen.

Answer 1

Cost of a dozen pens (12 pens) = $₹ 180$
∴ Cost of 1 pen = $\frac{180}{12}$
= 15
Cost of 8 ball pens =$₹ 56$
∴ Cost of 1 ball pen = $\frac{56}{8}$
= 7
Ratio of cost of one pen to that of one ball pen = $\frac{15}{7}$
$= 15:7$