A building has ground floor and 10 more floors. Nine persons enter in a lift at the ground floor. The lift goes up to the 
floor. The number of ways, in which any 4 persons exit at a floor and the remaining 5 persons exit at a different floor, if the lift does not stop at the first and the second floors, is equal to :
Text Solution
Verified by ExpertsC
Form group of 4 and 5 person 
choose two floor out of 8 floor 
Total ways in which 4 & 5 persons can leave at different floor 
──────────────────────────────────────────────────────────────────────────────────────────
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems