Question

Mohan brought 10 pens for Rs-100 and Deepak brought 16 pens for Rs-130.Who brought pens cheaper.

Answer 1

mohan:

10 for 100 1 for 10

deepak

16 for 130  1 for8.125

so deepak bought cheaper pens

Answer 2

Mohan:
price of 10 pen = ₹ 100
". ". 1 pen =₹ 10

Deepak :
price for 16 pen = ₹ 130
price for 1 pen = ₹8.125

therefore Deepak brought pens cheaper.