Question
Some articles were bought at 6 articles for Rs. 5 and sold at 5 articles for Rs. 6. Gain percent is:
Answer: Option D
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Suppose, number of articles bought = L.C.M. of 6 and 5 = 30.
C.P. of 30 articles = Rs. \(\left(\frac{5}{6}\times30\right)\) =Rs. 25
S.P. of 30 articles = Rs. \(\left(\frac{6}{5}\times30\right)\) = Rs. 36.
Gain % = \(\left(\frac{11}{25}\times100\right)\) % = 44%
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