SSC GD Constable previous year question
The current population of a town is 100000 and it is growing at a rate of 25% per year. Find the difference between the population 3 years ago and 2 years ago.
Asked in SSC GD Constable 2025: 12 Feb 2025 Shift 3 (Evening) · Quantitative Aptitude
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Correct answer: (D) 12800
Population 2 years ago = 100000/1.25² = 64000. Population 3 years ago = 100000/1.25³ = 51200. Difference = 64000-51200 = 12800.
हिंदी में प्रश्न
एक कस्बे की वर्तमान जनसंख्या 100000 है तथा जो प्रति वर्ष 25% की दर से बढ़ रही है। 3 वर्ष पूर्व तथा 2 वर्ष पूर्व की जनसंख्या में अंतर ज्ञात कीजिए।
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सही उत्तर: (D) 12800
2 वर्ष पूर्व की जनसंख्या = 100000/1.25² = 64000। 3 वर्ष पूर्व की जनसंख्या = 100000/1.25³ = 51200। अंतर = 64000-51200 = 12800।
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