Question

One pencil costs Rs 2 and one fountain pen costs Rs 15. What is the cost of x pencils and y fountain pens?

Answer 1

Cost of one pencil = Rs. 2
Cost of x pencils = Rs. 2x

Cost of one fountain pen = Rs. 15
Cost of y fountain pens = Rs. 15y

Total cost of x pencils and y fountain pens = Rs. (2x + 15y)