Home » Aptitude » Permutation and Combination

The number of signals that can be generated by using 5 differently coloured flags, when any number of them may be hoisted at a time is:

Correct Answer: 325

Explanation:

Required number of signals =  5 P 1   +   5 P 2   +   5 P 3   +   5 P 4   +   5 P 5


= 5 + 20 + 60 + 120 + 120 = 325


 


 


← Previous Question Next Question→

Discussion & Comments

No comments yet. Be the first to comment!
Join Discussion