Arithmetichard · Past Paper
The population of a city increases by 5% annually. If the current population is 185220, what was it 3 years ago?
A1,50,000
B1,60,000
C1,70,000
D1,80,000
✓ Correct Answer: B — 1,60,000
185220 = P(1.05)^3 => 185220 = P(1.157625) => P = 160000.
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