| Two successive discounts of 20% and 5% are equivalent to a single discount of |
A) 25%
B) 24%
C) 18%
D) 15%
Correct Answer: B
Solution :
| Lot Rs. 100 be discount apply 20%. |
| \[\therefore \]\[\frac{(100-20)}{100}\times 100=\frac{80}{100}\times 100=\text{Rs}\text{. 80}\] |
| So, again 5% discount on Rs. 80. |
| \[=(100-5)%\]of \[80=\frac{95}{100}\times 80\] |
| \[=\frac{95\times 8}{10}=\frac{760}{10}=76\] |
| Hence, single discount equal to\[(100-76)=24\]% |
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