Average of 12 numbers is 48. If each number is increased by 11, then what will be the new average?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 59
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Understanding |
Application |
Calculation |
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Average of 12 numbers is 48 |
So, Sum of numbers = 576 |
⇒ 12 × 48 = 576 |
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Since, each number is increased by 11. |
Total increment = 11 × 12 = 132 |
⇒ 11 × 12 = 132 |
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Hence, New average = (576 + 132)/12 = 59
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⇒ (576 + 132)/12 ⇒ 708/12 ⇒ 59 |