Question
Download Solution PDFThe average of the 9 results is 59 and the average of the first 8 results is 58. What is the 9th result?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Average of 9 results = 59
Average of first 8 results = 58
Formula Used:
Average = Sum of results / Number of results
Sum of results = Average × Number of results
Calculation:
Sum of 9 results = 59 × 9 = 531
Sum of first 8 results = 58 × 8 = 464
9th result = Sum of 9 results - Sum of first 8 results
9th result = 531 - 464
9th result = 67
The 9th result is 67.
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