दो संख्याओं के लघुत्तम समापवर्त्य (LCM) और महत्तम समापवर्तक (HCF) का अनुपात 3 : 1 है, और उन संख्याओं का गुणनफल 432 है। लघुत्तम समापवर्त्य (LCM) और महत्तम समापवर्तक (HCF) का मान क्रमशः ज्ञात कीजिए ।

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RRB Group D Previous Year Paper (Held on: 26 Aug 2022 Shift 2)
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  1. 36 और 12
  2. 24 और 18
  3. 72 और 24
  4. 54 और 8

Answer (Detailed Solution Below)

Option 1 : 36 और 12
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दिया गया है:

दो संख्याओं के लघुत्तम समापवर्तक (LCM) और महत्तम समापवर्तक (HCF) का अनुपात 3:1 है।

उन दो संख्याओं का गुणनफल 432 है।

प्रयुक्त सूत्र:

LCM × HCF = दो संख्याओं का गुणनफल

गणना:

मान लीजिए कि HCF x है। 

इसलिए, LCM = 3x

दिया गया है:  LCM × HCF = 432

⇒ 3x × x = 432

⇒ 3x2 = 432

⇒ x2 = 144

⇒ x = 12

⇒ LCM = 3x = 3 × 12 = 36

∴ सही उत्तर विकल्प (1) है: 36 और 12

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