d Word Problem 17 ( Profit or loss in business) | Job Exam Rare Mathematics (JEMrare) - Solved MCQs

Word Problem 17 ( Profit or loss in business)

Problem 17: A watch was sold at a loss of 10%. If it were sold for Rs 10 more, there would have been a gain of 10%. Find for how much the watch was sold.

a. Rs 45             b. Rs 40                      c. Rs 30                        d. Rs 60

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Let Cost price of the watch is ‘y’ i-e


there is information that it was sold at 10% loss of CP


we know formula for loss;


\Rightarrow SP=CP-L

\Rightarrow SP=y-\frac{10y}{100}

\Rightarrow SP=\frac{90y}{100}

So this is the sale price for given information !

if the watch was sold for Rs 10 more, then sale price would have been


And it is said that there would have been a profit of 10% of CP i-e


Now use formula for profit


put values


so,  \Rightarrow y+\frac{10y}{100}=\frac{90y}{100}+10

 \Rightarrow \frac{110y}{100}=\frac{90y}{100}+10

 \Rightarrow \frac{20y}{100}=10

hence,  \Rightarrow y=50

So cost price of the watch  CP was Rs 50

so put this value of y in ;

\Rightarrow SP=\frac{90y}{100}

 \Rightarrow SP=\frac{90\times 50}{100}=45

So, the watch was sold for Rs 45

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