Permutations And Combinations Question 86
Question: $ ^{n}C _{r}{{\div }^{n}}{C _{r-1}}= $ [MP PET 1984]
Options:
A) $ \frac{n-r}{r} $
B) $ \frac{n+r-1}{r} $
C) $ \frac{n-r+1}{r} $
D) $ \frac{n-r-1}{r} $
Correct Answer: CShow Answer
Answer:
Solution: