Question

The cost of 5 books is ₹ 240. Amit buys 20 such books and pays the shopkeeper ₹ 1000. How much does the shopkeeper has to pay Amit in return?

Answer 1

Given :
Cost of 5 books = ₹ 240
$\therefore$ cost of 1 book = $\frac{240}{5}$ = ₹48
Cost of 20 books = $48\times 20$ = ₹960
Given: Amit pays the shopkeeper ₹1000
$\therefore$ Change Amit will get = 1000 - 960 = ₹40