টাকায় ১৫টি করে মার্বেল ক্রয় করে টাকায় ২০টি করে বিক্রয় করলে শতকরা কত ক্ষতি হবে?
A. ৩৩.৩৩%
B. ২৫%
C. ১৮.৩৩%
D. ১২.২৫%
সঠিক উত্তরঃ
B.
২৫%
Explanation:
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