১০ টি সংখ্যা যোগফল ১১৮ । প্রতিটি সংখ্যার সাথে যদি ৩ যোগ করা হয়, তাহলে সংখ্যাগুলোর গড় কত হবে?
A. 12.8
B. 11.8
C. 14.8
D. 15.8
সঠিক উত্তরঃ
C.
14.8
Explanation:
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