Q. 9

# If (n + 3)! = 56 [(n + 1)!], find n.

Given: (n + 3)! = 56 [(n + 1)!]

To Find : n

(n + 3) × (n + 2) × (n + 1)! = 56 [(n + 1)!]

(n + 3) × (n + 2) = 56

(n + 3) × (n + 2) = 8 × 7

n + 3 = 8

n = 5

Hence, n = 5

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Circular permutations61 mins
Challenging Quiz on P&C | Test Yourself55 mins
Permutations & Combinations | Analyze your learningFREE Class
Check Your progress Part 2| Interactive Quiz: Permutation & CombinationFREE Class
Understand Permutations like never before60 mins
Lecture on Combinations49 mins
Interactive Quiz on Division and distribution of objects17 mins
Interactive Quiz on Combinations-0253 mins
Interactive Quiz on Combinations50 mins
Division and distribution of objects58 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses