Question

A shopkeeper bought 100 pen sets.He sold two- fifth of them at 12% profit and rest at 7% profit . Find the cost of 100 pen set if he earn a profit of ₹639.

Answer 1

100×2/5=40
40×112/100=44.8
60×107/100=64.2
Total profit=109 ka
ik pen per profit=9 rs h
9 ki value di Hui h 639
100 ki kitni hogi =7100