The average of 9 results is 50. The average of the first four results is 52 and the average of the last four results is 49. what is the fifth result?

48
46
52
44

Correct Answer: 46

Explanation:

Total of first four results = 52 x 4 = 208
Total of Last four results = 49 x 4 = 196
Hence the fifth result = 450 - (208 + 196) = 46

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