Question

cost of a dozen pens in rupees 180 and cost of a ball pen in Rupees 56 find the ratio of the cost of a pen the to the coast of a ball pen

Answer 1

cost of 1 pen=180/12=15
cost of a ball pen=56
therefore ratio=15/56

Answer 2

Answer:

One dozen pen = Rs. 180

Cost of One pen = 180/12   ..          [∵ 1 Dozen = 12 Units]

                            =₹  15

Cost of 8 ball pens = ₹56

Cost of 1 ball pen =₹ 56/8

                            = ₹.7

∴ Cost of a pen : Cost of a ball pen = 15 : 7