Q. The difference between a discount of 40% on 500 Rs. and two successive discounts of 30% and 10% on the same amount is :
Answer: 15 Rs.
Notes: Single equivalent discount of two consecutive discount of 30% and 10%. $latex = 30+10-\frac{30\times 10}{100} = 37\%&s=1$ ∴ Required difference = 40% of 500 - 37% of 500 $latex = 500\times \frac{3}{100} = 15\ Rs.&s=1$ Hence option [C] is correct answer.

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