Question

Krishna sells a book for Rs 180 at a loss of Rs 10%. Find the cost price of the book...

Answer 1

Let the Cost Price be Rs a

Loss percent = 10 %

We know that,

Loss percent = Loss × 100 / CP

=> 10 = Loss × 100 / a

=> Loss = 10a / 100

=> Loss = a/10


Now,

We know that,

Selling price = CP - Loss

=> 180 = a - a/10

=> 180 = 9a/10

=> 9a = 1800

=> a = 200


Cost Price of book = Rs 200