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Permutation and Combinations — MATHS STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceMATHSPermutation and Combinations1 Mark
MCQ
The value of 6C4​ is:
  • A
    6
  • B
    9
  • C
    15
  • D
    240
✓

Answer

  1. 15

Solution:

$^6\text{c}_4=^6\text{c}_{6-4}=^6\text{c}_2=\frac{6\times5}{2\times1}=15$

 

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