Gujarati
Hindi
7.Profit and Loss
medium

The difference between a discount of $35 \%$ and two successive discount of $20 \%$ on a certain bill was $Rs$ $22.$ Find the amount of the bill in $Rs.$

A

$200$

B

$1100$

C

$2200$

D

Data inadequate

Solution

Let the amount of bill be $Rs$ $x$.

$1st$ discount $=35 \%$

$2nd$ discount $=20 \%$, each two times in succession.

$\therefore$ Equivalent discount for $2 nd$ one $=\left(-20-20+\frac{400}{100}\right) \%=-36 \% \quad 36 \%$ decrease

$\therefore$ Difference of discounts $=x(36-35) \%=22$

$x \times \frac{1}{100}=22$

$x=Rs. 2200$

Standard 13
Quantitative Aptitude

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