RRB NTPC CBT-1 previous year question
The sum of two positive numbers is 44 and their product is 228. The positive difference between them is:
Asked in RRB NTPC 2026 — 16 June Shift 3 · Quantitative Aptitude
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Correct answer: (B) 32
Let the numbers be x and 44-x with product 228: x2−44x+228=0 has discriminant 1936-912=1024 (sqrt=32), giving x=38 or 6; their positive difference is 38-6=32.
हिंदी में प्रश्न
दो धनात्मक संख्याओं का योगफल 44 है और उनका गुणनफल 228 है। उनके बीच का धनात्मक अंतर ज्ञात कीजिए।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (B) 37 —_— .
मान लें संख्याएं x और 44-x हैं, गुणनफल 228: x2−44x+228=0 का विविक्तकर 1936-912=1024 (sqrt=32) है, जिससे x=38 या 6 मिलता है; उनका धनात्मक अंतर 38-6=32 है।
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