Exam
Maths Puzzle
Numerical Ability
Probability
there are 5 letters and 5 envelopes . what is the probability of each lettler put in correct envelope.
Read Solution (Total 1)
-
- __ __ __ __ __ these 5 spaces can be filled in 5*4*3*2*1 which is 5! 120 and there is only 1 case in which each letter would go in correct corresponding envelop. so probability is 1/120
- 9 years agoHelpfull: Yes(0) No(0)
Exam Other Question