Q. Applied to a bill for 100000 Rs. the difference between a discount of 40% and two successive discounts of 36% and 4% is :
Answer: 1440 Rs.
Notes: Successive discount of 36% and 4% is overall equals to = $latex \left ( 36+4-\frac{36\times 4}{100} \right )\%&s=1$ = 38.56% ∴ Percentage difference = 40 - 38.56 = 1.44% Difference between discount = 1.44% of 100000 $latex =>\frac{1.44\times 100000}{100}&s=1$ $latex = 1440 Rs.$ Hence option [B] is the right answer.

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