1. **State the problem:** We want to find the percentage contribution of each person to the total contribution and understand the interest distribution. 2. **Given data:** - Total number of people: 7 - 5 people contributed 2400 - 1 person contributed 900 - 1 person contributed 600 - Interest made: 1308 3. **Calculate total contribution:** $$\text{Total contribution} = 2400 + 900 + 600 = 3900$$ 4. **Calculate percentage contribution for each group:** - For 5 people: $$\frac{2400}{3900} \times 100 = \frac{2400}{3900} \times 100 = 61.54\%$$ - For 1 person who contributed 900: $$\frac{900}{3900} \times 100 = 23.08\%$$ - For 1 person who contributed 600: $$\frac{600}{3900} \times 100 = 15.38\%$$ 5. **Interpretation:** The percentages represent how much each group contributed to the total amount. 6. **Interest distribution (optional):** If interest is to be distributed proportionally, multiply total interest by each percentage (as decimal). Example for 5 people: $$1308 \times \frac{2400}{3900} = 1308 \times 0.6154 = 805.54$$ Similarly for others. **Final answer:** - 5 people contributed 61.54% - 1 person contributed 23.08% - 1 person contributed 15.38%