Percentage practice question for Railways, SSC. Review the correct answer and explanation, then continue with related practice below.
The population of a town increases by 20% in the first year, decreases by 10% in the second year and increases by 25% in the third year. Find the overall percentage change.
किसी नगर की जनसंख्या पहले वर्ष 20% बढ़ती है, दूसरे वर्ष 10% घटती है और तीसरे वर्ष 25% बढ़ती है।
कुल प्रतिशत परिवर्तन ज्ञात कीजिए।
Answer and explanation are free to read — no sign-in required.उत्तर और व्याख्या पढ़ने के लिए साइन-इन आवश्यक नहीं है।
Correct Answerसही उत्तर
B. 35% increaseB. 35% वृद्धि
Explanationव्याख्या
Take population = 100.
It becomes 120, then 108, then 108 × 125
100 = 135.
Hence overall increase = 35%.
जनसंख्या 100 मानें।
यह 120, फिर 108 और अंत में 135 हो जाती है।
अतः कुल वृद्धि = 35%।
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