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An epidemic broke out in a village in wh...

An epidemic broke out in a village in which 5% of the population died. Of the remaining, 20% fled out of panic. If the present population is 4655, then the population of the village originally was

A

6000

B

6125

C

5955

D

5995

Text Solution

AI Generated Solution

The correct Answer is:
To find the original population of the village before the epidemic and the subsequent fleeing of the people, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the percentage of the population that died:** - According to the problem, 5% of the population died due to the epidemic. This means that 95% of the population remained. **Hint:** Remember that if 5% died, the remaining percentage is calculated as 100% - 5%. 2. **Calculate the percentage of the remaining population that fled:** - Out of the remaining 95%, 20% fled. Therefore, the percentage that stayed is 80% of the remaining population. **Hint:** To find the percentage that stayed, subtract the percentage that fled from the remaining percentage. 3. **Set up the equation based on the current population:** - We know that the present population is 4655, which represents 80% of the remaining 95% of the original population. We can express this as: \[ \text{Present Population} = 80\% \times 95\% \times \text{Original Population} \] \[ 4655 = 0.80 \times 0.95 \times \text{Original Population} \] **Hint:** Convert percentages to decimals for calculations (e.g., 80% = 0.80). 4. **Calculate the combined percentage:** - Calculate \(80\% \times 95\%\): \[ 0.80 \times 0.95 = 0.76 \] Thus, we can rewrite the equation as: \[ 4655 = 0.76 \times \text{Original Population} \] **Hint:** Multiplying the decimal values gives you the total percentage of the original population that remains. 5. **Solve for the original population:** - To find the original population, divide both sides of the equation by 0.76: \[ \text{Original Population} = \frac{4655}{0.76} \] \[ \text{Original Population} = 6125 \] **Hint:** When dividing, ensure you perform the operation carefully to avoid mistakes. ### Final Answer: The original population of the village was **6125**.
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