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The average of 11 numbers is 8. If a number 12 is removed, then what will be the new average?
- A7.4
- B7.6
- C7.8
- D8.2
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CCommunity
Average of 11 numbers = 8
∴ Sum of 11 numbers = 11 × 8 = 88
After a number 12 is removed
Sum of remaining 10 numbers = 88 - 12 = 76
∴ Average of remaining 10 numbers
= 76/10
= 7.6
∴ Sum of 11 numbers = 11 × 8 = 88
After a number 12 is removed
Sum of remaining 10 numbers = 88 - 12 = 76
∴ Average of remaining 10 numbers
= 76/10
= 7.6