Quantitative Aptitude Ques 1500

Question: Two successive discounts of 20% and 5% are equivalent to a single discount of

Options:

A) 25%

B) 24%

C) 18%

D) 15%

Show Answer

Answer:

Correct Answer: B

Solution:

  • Lot Rs. 100 be discount apply 20%.

$ \therefore $ $ \frac{(100-20)}{100}\times 100=\frac{80}{100}\times 100=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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