একটি সংখ্যার ৪০% এর সাথে ৪৫ যোগ করলে ঐ সংখ্যাটিই হলে সংখ্যাটি কত?
A. ৮৫
B. ৮০
C. ৭৫
D. ৭০
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সঠিক উত্তরঃ
C.
৭৫
Explanation:
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