কোন একটি পণ্যের দাম প্রথমে ১৫% বাড়ানো হলো এবং এরপর ১৫% কমানো হলে দাম-
A. পরিবর্তন হয় না
B. ২.২৫% বাড়ে
C. ২.২৫% কমে
D. কোনটিই নয়
সঠিক উত্তরঃ
C.
২.২৫% কমে
Explanation:
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