MCQ
The value of ${ }^6 \mathrm{C}_4$​ is:
  1. 6
  2. 9
  3. 15
  4. 240
  • A
    6
  • B
    9
  • 15
  • D
    240

Answer

Correct option: C.
15
  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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