Question

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

• A. 38 paise
• B. 40 paise
• C. 42 paise
• D. 44 paise

Answer 1

The correct option is B 40 paise

Let's say Price per egg $=x$
Number of eggs bought for $Rs40=$ $\frac{40}{x}$
Reduced price of egg $=x-20\%$ of $x$
$\Rightarrow x-0.2x=0.8x$
Number of eggs that can be bought=$\frac{40}{0.8x}$
As per question,
$\Rightarrow \frac{40}{0.8x}-\frac{40}{x}=20$

$\Rightarrow \frac{40-32}{0.8x}=20$

$\Rightarrow \frac{8}{0.8x}=20$

$\Rightarrow 16x=8$
$\Rightarrow x=2$
Reduced price $=2\times \frac{20}{100}=0.40paise$
Hence, the reduced price per egg will be 40 paise as 20% of Rs 2 is 40paise.