Percentage practice question for Railways, SSC. Review the correct answer and explanation, then continue with related practice below.
A number is first increased by 30% and then again increased by 20%. By what percentage must the resulting number be decreased to get the original number?
किसी संख्या में पहले 30% और फिर 20% की वृद्धि की जाती है।
प्राप्त संख्या को मूल संख्या पर लाने के लिए कितने प्रतिशत घटाना 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
B. 35.90% / 35.90%
Explanationव्याख्या
Let original number = 100.
It becomes 130 and then 156.
Required decrease = 56
156 × 100 ≈ 35.90%.
मूल संख्या 100 मानें।
यह 130 और फिर 156 हो जाती है।
156 से 100 आने के लिए कमी = 56
156 × 100 ≈ 35.90%।
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