Question

by selling a book for rupees 162 to a bookseller and a profit of 20% find the cost price of the book​

Answer 1

Answer:

selling price = 162

profit  percent =20%

profit =162×20/100

         = 162/5

         = 32.4

cost price =selling price - profit

                = 162-32.4

                =129.6

I think you will Understand

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

Sp= 162

Profit=20%

Cp= (100x sp)/(100+ profit)

=(100x162)/120

=135