The population of a village fell by 10% in the first year and rose by 20% in the second year. It is now 54,000. What was it at the start?
A. 50,000
B. 52,000
C. 48,000
D. 45,000
A. 50,000
B. 52,000
C. 48,000
D. 45,000
Best answer
Answer: A. 50,000
Answer: (A) 50,000
Shortcut: net factor = 0.9 × 1.2 = 1.08. Start = 54,000 ÷ 1.08 = 50,000.
Check: 50,000 → 45,000 → 54,000.
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