Quantitative Aptitude Ques 2258

Question: When the price of eggs is reduced by 20%, it enables a man to buy 20 more eggs for Rs. 40. The reduced price per egg is

Options:

A) 35 paise

B) 40 paise

C) 50 paise

D) 56 paise

Show Answer

Answer:

Correct Answer: B

Solution:

  • Let original rate be Rs. x per egg. New rate = 80% of $ x=Rs.\frac{4x}{5} $ Original quantity for $ Rs.,40=\frac{40}{x} $ New quantity $ =40\times \frac{5}{4x}=\frac{50}{x} $

$ \therefore $ $ \frac{50}{x}-\frac{40}{x}=20 $
$ \Rightarrow $ $ \frac{10}{x}=20 $
$ \Rightarrow $ $ x=\frac{10}{20}=\frac{1}{2} $

$ \therefore $ Reduced price = 80% of $ Rs.,\frac{1}{2}=\frac{4}{5}\times \frac{1}{2} $ $ =Rs.\frac{2}{5}=\frac{2}{5}\times 100=40,paise $

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