संख्या 9730 - 1430 विभाज्य है-

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CDS Elementary Mathematics 16 April 2023 Official Paper
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  1. 37 से है लेकिन 83 से नहीं
  2. 83 से है लेकिन 37 से नहीं
  3. 37 और 83 दोनों से
  4. न तो 37 से, न ही 83 से

Answer (Detailed Solution Below)

Option 3 : 37 और 83 दोनों से
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Detailed Solution

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अवधारणा:

an - bn हमेशा (a - b) और (a + b) से विभाज्य होता है।

गणना:

हमारे पास है, 9730 - 1430

उपरोक्त अवधारणा का उपयोग करते हुए,

9730 - 1430 विभाज्य है,

(97 - 14) = 83

और

(97 + 14) = 111 = 37 × 3

∴ 9730 - 1430, 37 और 83 दोनों से विभाज्य है।

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