A boy reads 3/5 of a book and 60 pages are left. Find the total number of pages in the book.

Solution:

Let us assume that the complete book as P, then the equation we get :

3/5 of P + 60 = P

60 = P - 3P/5

60 = 5P - 3P / 5

60 x 5 = 2P

2P = 300

P = 300/2 = 150 pages.

Ans: 150 pages.