Question

Roma bought some books for 60 rupees .had she bought 5 more books for the same amount each book would have cost for 1 Rupee less find the number of books bought by Roma and price of each book ​

Answer 1

Roma bought 15 books at Rs.4 each.

The quadratic equation will be-

60/x - 60/(x+5) = 1

where, x = No. of books bought

Solve the equation to get two values of x

x=15 and x=-20 (Ignore)

So, x=15