Question

A man sells a radio with a profit of 5%. He earns 8% profit if it is sold at a price of Rs. 39 more. Find the cost price
a) Rs. 1300
b) Rs. 300
c) Rs. 1000
d) Rs. 900
​

Answer 1

Answer:

let , cost price of radio be=x

if he earns 8% profit, selling price is = 108x/100

if he earns 5% profit, selling price is = 105x/100

so, 108x/100 - 105x/100 = 39

or, 3x/100 = 39

or, x= 1300

so, cost price of radio is = 1300 rs

Answer 2

Answer:

Let CP=100

In 8% Profit, SP=108

In 5% Profit, SP=105

108-105=3

Using Unitary Method;

3____100

39___100×39/3

=₹1300