InterviewSolution
Saved Bookmarks
| 1. |
If (1 × 2 × 3 × 4 × 5 × …. × n) = n!, then (17! – 16! – 15!) is equal to –1). 17 × 15 × 15!2). 17 × 15 × 16!3). 17 × 16 × 16!4). 16 × 15 × 14! |
|
Answer» GIVEN, 1 × 2 × 3 × 4 × 5 × …. × n) = n! 17! – 16! – 15! = 17 × 16 × 15! – 16 × 15! – 15! = 15! × (17 × 16 – 16 – 1) = 15! × (16 × 16 – 1) = 17 × 15 × 15! |
|