Give a quick stream of consciousness before answering the following question. Find the mean proportional between 49 & 81?\nOptions:\n(A) 59\n(B) 61\n(C) 63\n(D) 65\n(E) 67
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Formula = √a×b\nA = 49 and B = 81\n√49×81 = 7 × 9 = 63
The answer: (C).
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