Question 47
Permutation and CombinationEvaluate n+1Cn−2 if n = 15.
- A.3630
- B.3360
- C.1120
- D.560
Show the answer and explanation
Answer: D (560)
Explanation
16C13 = 16C3 = (16 × 15 × 14)/6 = 560.
Evaluate n+1Cn−2 if n = 15.
Answer: D (560)
16C13 = 16C3 = (16 × 15 × 14)/6 = 560.