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7.Profit and Loss
medium
$Mr$ A sold a goods, to $Mr$. $B$ at $10 \%$ discounted value of printed rate. The discounted value is $Rs.\, 1242.$ If $15 \%$ profit is earned on purchase rate by selling the goods at printed rate, what is the purchase rate? (in $Rs.$)
A
$1242$
B
$1380$
C
$1280$
D
$1200$
Solution
We can determine $CP$ (cost price)$/$ purchase rate by below formula:
$CP = SP \times \frac{100}{100- Discount \%} \times \frac{100}{100+ Pr { ofit } \%}$
$=1242 \times \frac{100}{90} \times \frac{100}{115}= Rs .1200$
Standard 13
Quantitative Aptitude