यदि nCnC7, तब  nC4 = का मान ज्ञात करें।

  1. 440
  2. 792
  3. 495
  4. 375

Answer (Detailed Solution Below)

Option 3 : 495
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Agniveer Navy SSR Full Test - 01
100 Qs. 100 Marks 60 Mins

Detailed Solution

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अवधारणा:

यदि तो x + y = n

 

गणना:

दिया गया है कि: nCnC7

यह केवल तभी संभव है जब n = 5 + 7 = 12 हो

= 495

इसलिए, विकल्प (3) सही है।

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