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

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INSURANCE EXAMS (NICL) 2013 click here to view all questions

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

ARs.0

BRs.2

CRs.1.93

DRs.7.20

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Correct answer is: Rs.7.20 Explanation: Discount of 40% on Rs.500 $= \frac{500 \times 40}{100}$= Rs.200 and single discount per cent equivalent to 36% and 4% $= \left(r_{1}+r_{2}-\frac{r_{1}r_{2}}{100}\right)\%$ $= 36+4-\frac{36 \times 4}{100}=40-1.44 = \text{38.56%}$ Therefore, Discount by 38.56% on 500 $= \frac{38.56 \times 500}{100} = \text{Rs.192.80}$ Hence, required difference = (200 - 192.80} = Rs.7. 20 Nithin ? answered undefined All Comments

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