Question

The cost of 15 dozen pencils is Rs. 180. Find the cost of 36 pencils in ratio

Answer 1

Solution :

Cost of a dozen pens in rupees =180

Cost of a pen in rupees =18012=15

Cost of a 8 ball pens in rupees =56

Cost of a ball pen in rupees =568=7

So, ratio of cost of a pen to the cost of a ball pen =157