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A Set A consists of integers 27, 28, 30, 32, and 33. If integer k is included in the average of set A will increase by 30%. What is the value of integer K ?
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- 68
- 79
- 84
- 92
Correct Option: C
Average of set A
| = | 5 |
| = | = 30 | 5 |
Case II,
| New average = | = 39 | 100 |
∴ 150 + k = 39 × 6 = 234
⇒ k = 234 – 150 = 84
