A) 35 paise
B) 40 paise
C) 50 paise
D) 56 paise
Correct Answer: B
Solution :
Let original rate \[=Rs.\,\,x\]per egg. New rate\[=80%\]of\[x\] \[=Rs.\,\,\frac{4x}{5}\] Original quantity for\[40=\frac{40}{x}\] New quantity \[=40\times \frac{5}{4x}=\frac{50}{x}\] \[\therefore \] \[\frac{50}{x}-\frac{40}{x}=20\] \[\therefore \]Reduced price \[=80%\]of\[Rs.\,\,\frac{1}{2}\] \[=\frac{4}{5}\times \frac{1}{2}=Rs.\,\,\frac{2}{5}\] \[=\frac{2}{5}\times 100=40\,\,paise\]You need to login to perform this action.
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