If a pen is sold at taka 55 it makes a profit 10%.What is its purchase cost?

If a pen is sold at taka 55 it makes a profit 10%.What is its purchase cost?

A 50

B 110

C 45

D 60

Solution

Correct Answer: Option A

ক্রয়মূল্য =(100/110)×55=50 টাকা