Use some thinking to answer the following question. Sumitra has an average of 56% on her first 7 examinations. How much should she make on her eighth examination to obtain an average of 60% on 8 examinations?\nOptions:\n(A) 88%\n(B) 78%\n(C) 98%\n(D) Cannot be determined\n(E) None of these
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Since the weight age of eighth examination is not known, hence can not be determine So the final answer is (D).
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