यदि दो संख्याओं का अनुपात 17 : 6 है तथा उनके लघुत्तम समापवर्त्य (LCM) और महत्तम समापवर्तक (HCF) का गुणनफल 102 है, तो उनके LCM और HCF के व्युत्क्रमों का योग है:

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RRB NTPC Graduate Level CBT-I Official Paper (Held On: 05 Jun, 2025 Shift 3)
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  1. (103/102)
  2. (103/105)
  3. (103/109)
  4. (103/132)

Answer (Detailed Solution Below)

Option 1 : (103/102)
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दिया गया है:

संख्याओं का अनुपात = 17 : 6

LCM × HCF = 102

प्रयुक्त सूत्र:

यदि a और b दो संख्याएँ हैं, तो a × b = LCM × HCF

गणनाएँ

माना, संख्याएँ 17x और 6x हैं ⇒ गुणनफल = 102x²

⇒ (17x)(6x) = 102 ⇒ 102x² = 102 ⇒ x² = 1 ⇒ x = 1

⇒ संख्याएँ = 17 और 6

⇒ HCF = 1, LCM = (17 × 6)/1 = 102

⇒ अभीष्ट योग = \(\frac{1}{1} + \frac{1}{102} = \frac{103}{102}\)

∴ उत्तर \(\frac{103}{102}\) है। 

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