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1. In a group of 135 persons, 50% people contributed tk. 40 each, 30% contributed Tk. 60 each and the remaining persons contributed Tk. 80. Find the average contribution for the group.
- A. Tk. 50
- B. Tk. 50
- C. Tk. 50
- D. Tk. 50
Answer: Option B
Explanation:
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