दो संख्याएँ 3 : 5 के अनुपात में हैं और उनका महत्तम समापवर्तक (HCF) 28 है। उनका लघुत्तम समापवर्त्य (LCM) ज्ञात कीजिए।

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  1. 420
  2. 440
  3. 430
  4. 410

Answer (Detailed Solution Below)

Option 1 : 420
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दिया गया है:

दो संख्याओं का अनुपात = 3 : 5

दो संख्याओं का महत्तम समापवर्तक (HCF) = 28

प्रयुक्त सूत्र:

LCM = (संख्याओं का गुणनफल) / HCF

गणना:

मान लीजिए कि दो संख्याएँ 3x और 5x हैं।

चूँकि HCF 28 है, हम लिख सकते हैं:

3x और 5x इस प्रकार होने चाहिए कि उनका HCF 28 हो।

इसलिए, x = 28

दो संख्याएँ हैं:

3 x 28 = 84

5 x 28 = 140

LCM = (84 x 140) / 28

⇒ LCM = 11760 / 28

⇒ LCM = 420

दो संख्याओं का LCM 420 है।

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