Question

The difference between a discount of $40\%$ on $Rs.500$ and two successive discounts of $36\%$ and $4\%$ on the same amount is:

• A. 0
• B. Rs. 2
• C. Rs. 1.93
• D. Rs. 7.20

Answer 1

The correct option is A: $Rs.7.20$

Case (i) : Discount of $40\%$ on $Rs.500$

Discount amount $=40\%$ of $500$

$=\frac{40}{100}\times 500=Rs200$

Case (ii): Two successive discounts of $36\%$ and $4\%$ on $Rs500$

First Discount of $36\%=36\%$ of $500=\frac{36}{100}\times 500=Rs180$

Second Discount of $4\%$ on $(500-180=Rs320)=4\%$ of $320=\frac{4}{100}\times 320=12.8$

Total discount in case (ii) $=180+12.8=Rs.192.8$

So, Difference in discount $=200-192.8=Rs.7.2$