SSC GD Constable previous year question
If the mean proportional of 18 and 98 is 2A + 6, the value of A is:
Asked in SSC GD Constable 2025: 07 Feb 2025 Shift 2 · Quantitative Aptitude
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Correct answer: (C) 18
Mean proportional = √(18×98) = √1764 = 42. So 2A+6 = 42 → A = 18.
हिंदी में प्रश्न
यदि 18 और 98 का माध्यानुपाती 2A + 6 है, तो A का मान है:
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सही उत्तर: (C) 18
माध्यानुपाती = √(18×98) = √1764 = 42। अतः 2A+6 = 42 → A = 18।
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