Q. The average of 17 results is 60. If the average of first 9 results is 57 and that of the last 9 results is 65, then what will be the value of 9th result?
A) 78
B) 39
C) 156
D) 117
✔ Correct Answer: 78
Exam Insight
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A) 78
B) 39
C) 156
D) 117
✔ Correct Answer: 78
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