RRB NTPC CBT-1 previous year question
What is the mean proportional between 0.0009 and 0.25?
Asked in RRB NTPC 2026 — 16 June Shift 2 · Quantitative Aptitude
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Correct answer: (A) 0.015
Mean proportional between two numbers a and b is sqrt(a×b) = sqrt(0.0009×0.25) = sqrt(0.000225) = 0.015.
हिंदी में प्रश्न
0.0009 और 0.25 के बीच का माध्यानुपाती ज्ञात कीजिए।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (A) 0.015
दो संख्याओं a और b के बीच माध्यानुपाती = sqrt(a×b) = sqrt(0.0009×0.25) = sqrt(0.000225) = 0.015 होता है।
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