Percentage practice question for Railways, SSC. Review the correct answer and explanation, then continue with related practice below.
A number is increased by 20%, then by 25%, and finally decreased by 20%. What is the overall percentage change?
किसी संख्या में पहले 20%, फिर 25% की वृद्धि और अंत में 20% की कमी की जाती है।
कुल प्रतिशत परिवर्तन क्या होगा?
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
C. 20% increaseC. 20% वृद्धि
Explanationव्याख्या
Let the number = 100.
After 20% increase = 120; after 25% increase = 150; after 20% decrease = 120.
Hence the final value is 120, giving an overall increase of 20%.
संख्या 100 मानें।
20% वृद्धि के बाद 120, फिर 25% वृद्धि के बाद 150 और 20% कमी के बाद 120 होगी।
अतः कुल वृद्धि = 20%।
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