RRB Technician Grade 3 previous year question
The average of three numbers is 20. If two numbers are 11 and 21, respectively, then the third number is:
Asked in RRB Technician Grade 3 (06 Mar 2026 Shift 3) · Quantitative Aptitude
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Correct answer: (C) 28
Sum of three numbers = 3×20 = 60. Third number = 60 − 11 − 21 = 28.
हिंदी में प्रश्न
तीन संख्याओं का औसत 20 है। यदि दो संख्याएं क्रमशः 11 और 21 हैं, तो तीसरी संख्या ज्ञात कीजिए।
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सही उत्तर: (C) 28
तीन संख्याओं का योग = 3×20 = 60। तीसरी संख्या = 60 − 11 − 21 = 28.
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