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Q.

Some articles were bought at 6 articles for Rs.5and sold at 5 articles for Rs.6 Gain percent is?

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a

33%

b

33

\frac{1}{3}

%

c

35%

d

44%

answer is D.

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Detailed Solution

Concept- We will base our answer on the facts provided in the question, which states that some items were purchased at a price of 6 for 5 and sold at a price of 5 for 6. and calculate the selling and cost prices of specific items. Then, using the formula

\frac{selling price - cost price}{cost price} \times

100%, we will determine the gain percent.
Consider the following question: The articles are purchased at a price of 5 articles for Rs. 6 and sold at a price of 6 articles for Rs.
Since it is assumed that the cost price for six articles is Rs. 5, the cost price for one article will be Rs.

\frac{5}{6}

.
In a similar manner, we might deduce that one article costs Rs.

\frac{6}{5}

to sell.
From the fundamental idea, it follows that the gain percentage is provided as

\frac{selling price - cost price}{cost price} \times

100%
In this instance, it may be stated as

\frac{(\frac{6}{5} - \frac{5}{6})}{(\frac{5}{6})} \times 100

By making this simpler, we will have

\frac{(\frac{6}{5} - \frac{5}{6})}{(\frac{5}{6})} \times 100

\frac{\frac{(36 - 25)}{30}}{(\frac{5}{6})} \times 100

\frac{\frac{11}{30}}{\frac{5}{6}} \times 100

\frac{11}{30} \times \frac{6}{5} \times 100

\frac{11 \times 6 \times 2}{3} = 44 %

Hence, option 4 is correct.

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