 
<translate> Ọnụ ọgụgụ ikpeazụ = Ọnụ ọgụgụ mbụ + 50% ((ọnụ ọgụgụ mbụ) = 80 + 50% ((80) = 80 + 40 = 120. N'ihi ya, azịza ya bụ (C). <eng> Final number = Initial number + 50%(original number) = 80 + 50%(80) = 80 + 40 = 120.
Thus, the answer is (C). 