Question

Cost of a dozen in rupies 180 and of 8 ball pen is rupies 56 find the ratio of the cost of a pen to the cost of a ball pen

Answer 1

Answer: Cost of a dozen pens (12 pens) = Rs. 180

∴∴ Cost of 1 pen = 1801218012 = Rs. 15

Cost of 8 ball pens = Rs. 56

∴∴ Cost of 1 ball en = 568568 = Rs. 7

Ratio of cost of one pen to that of one ball pen = 157157 = 15 : 7