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
A step-by-step solution is:
(D)
5 * 46 – 4 * 45 = 50.

Final answer: (D)