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The average of nine numbers is 50. The average of the first five numbers is 54 and that of the last three numbers is 52. Then the sixth number is
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- 30
- 34
- 24
- 44
- 30
Correct Option: C
Given , Sum of 9 numbers = 9 × 50 = 450
Sum of the first 5 numbers = 5 × 54 = 270
and Sum of the last 3 numbers = 3 × 52 = 156
∴ The sixth number = Sum of 9 numbers - Sum of the first 5 numbers - Sum of the last 3 numbers
The sixth number = 450 – 270 – 156 = 24
