Question: The average of five results is 46 and that of the first four is 45. The fifth result is?\nOptions:\n(A) 22\n(B) 02\n(C) 78\n(D) 50\n(E) 18 Let's think first. Some random reasoning:
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5 * 46 – 4 * 45 = 50 The final answer: (D).
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