1 . In a set of 10 consecutive positive integers, the sum of first 5 numbers is 510. What is the average of last 5 numbers in the series?
- A. 103
- B. 105
- C. 107
- D. 109
- D. None
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পায়রা বন্দর কর্তৃপক্ষ (বিভিন্ন পদ) 06-11-2020
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