During the first year the population of a village increased by 5% and during the second year it diminished by 5%. At the end of the second year its population was 47,880. What was the population at the beginning of the first year?
A.48000✓ Correct
B.43500
C.53000
D.45000
Explanation
Let initial population = P. After two years: P × 1.05 × 0.95 = P × 0.9975 = 47880. So P = 47880/0.9975 = 48000.
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