Permutations and Combinations Part 2
© examsiri.com
Question : 82 of 110
Marks:
+1,
-0
If 2 n + 1 P n − 1 : 2 n − 1 P n = 11 : 21 , then n 2 + n + 15 is equal to:
[31-Jan-2023 Shift 2]
- Your Answer:
Go to Question: