একটি দ্রব্য ৩৮০ টাকায় বিক্রয় করায় ২০ টাকা ক্ষতি হলো। ক্ষতির শতকরা হার কত?
A. ৪%
B. ৫%
C. ৬%
D. ৭%
সঠিক উত্তরঃ
B.
৫%
Explanation:
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