A bookseller can gain 6.666% if he offers a 20% commission on the written selling price of a book. If the commission is reduced to 10% , what will be his gain ?
A. 15%
B. 10%
C. 20%
D. 25%
E. None of these
সঠিক উত্তরঃ
C.
20%
Explanation:
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