Question

the price of a book includes 10% printing cost, 20% paper cost, and another 15% labour cost. if the remainder is rs.110 what is the total price of the book?

Answer 1

Answer:

Rs 200

Step-by-step explanation:

We first convert the percentages to fractions.

Printing cost = 10/100 = 1/10

Paper cost = 20/100 = 1/5

labor cost = 15/100 = 3/20

We sum this fractions to get :

1/10 + 1/5 + 3/20 = 9/20

The remainder is :

1 - 9/20

= 20/20 - 9/20 = 11/20

This is equal to rs 110

11/20 = 110

We need to get the total price which is 20/20

20/11 × 110 = 200

The total price of the book is :

Rs 200