Question

A book seller sold 400 copies of a book at a profit of 20% .if the c.p of a book is rs 100 .find s.p of the book.

Answer 1

toatl copies =400
each rate=100
profit=100×20/100= 20 rs per copy
sellingprice of book is 120

Answer 2

Total copies =400
Each copy rate = 100
Profit = 20
According to the question
SP = 100 + Profit /100
SP = 100 + 20/100
Selling price of each notebook = Rs.120