The difference between a discount of 40% on Rs. 500 and

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

1. 0
2. Rs. 2
3. Rs. 1.93
4. Rs. 7.20

Correct Option: D

Sale after 40% discount = 60% of Rs. 500 = Rs. 300
Price after 36% discount = 64% of Rs. 500 = Rs. 320
Price after next 4% discount = 96% of Rs. 320 = Rs. 307.20
∴ Required difference in two prices = (307.20 - 300) = Rs. 7.20