SSC GD Constable previous year question
The third proportional of x and x + 100 is 405. Find the value of x (where x > 100).
Asked in SSC GD Constable 2025: 05 Feb 2025 Shift 3 (Evening) · Quantitative Aptitude
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Correct answer: (B) 125
(x+100)² = x × 405; solving this quadratic for x > 100 gives x = 125.
हिंदी में प्रश्न
x तथा x + 100 का तृतीयानुपाती 405 है, x का मान ज्ञात कीजिए (जहाँ x > 100)।
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उत्तर और व्याख्या देखें
सही उत्तर: (B) 125
(x+100)² = x × 405; x > 100 के लिए इस द्विघात समीकरण को हल करने पर x = 125 प्राप्त होता है।
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