Correct Answer: Option D
Suppose, number of articles bought = L.C.M. of 6 and 5 = 30.
C.P. of 30 articles = Tk. ((5/6)x 30) = Tk. 25.
S.P. of 30 articles = Tk. ((6/5)x 30) = Tk. 36.
Gain % =((11/25)x 100)% = 44%.
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