Discussion :: Profit and Loss

Some articles were bought at 6 articles for Rs. 5 and sold at 5 articles for Rs. 6. Gain percent is:
Answer : Option D
Explanation :
Suppose, number of articles bought = L.C.M. of 6 and 5 = 30.
C.P. of 30 articles = Rs [  \(\frac { 5} { 6 } \)  x 30]  = Rs. 25.  
S.P. of 30 articles = Rs.  \( \frac { 6 } { 5 } \)x 30  = Rs. 36.  
Gain % =  \(\frac { 11 } { 25 }\)x 100  %=44%.  
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