Question

The cost of a pair of roller skates at a shop was Rs. 450. The sales tax charged was 5%. Find the bill amount.

Answer 1

On Rs. 100, the tax paid was Rs. 5.

On Rs. 450, the tax paid would be = $Rs.\frac{5}{100}\times 450=Rs.22.5$

Bill amount = Cost of item + Sales tax = $Rs.450+Rs.22.5=Rs.472.5$