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1. In a group of 5 men, no 2 men have the same age. The eldest man is 50 years old and the youngest is 30 years old. If X years is the average age of the men in the group, which of the following best indicates all and only possible values of X? (All ages are in whole numbers)
- A. 30 < X < 50
- B. 30 < X < 50
- C. 30 < X < 50
- D. 30 < X < 50
Answer: Option C
Explanation:
There can be 2 possible scenarios
Maximizing X
30,47,48,49,50
Thus, average will be 44.8
Minimizing X
30,31,32,33,50
Thus, average will be 35.2
Check the options, correct Answer must be (E) 35 < X < 45
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