GATE 2021 ST – Question 1
General Aptitude · Quantitative Aptitude: Data Interpretation, Arithmetic and Number Computation · 1 mark · Multiple choice
A city’s current population is 11,02,500 and has increased by 5% per year. What was its population two years ago?
- 9,92,500
- 9,95,006
- 10,00,000
- 12,51,506
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Show answer and explanation
Correct answer: (C) 10,00,000
Explanation
If the earlier population is N,then N(1.05)²=1102500. Since (1.05)²=1.1025,N=1000000. **C**.
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