1 votes 1 votes Rama wrote 5 different letters. He prepared 5 different envelopes for the 5 letters. If he randomly distributes the 5 letters to the 5 envelops what is the probability that each letter gets into correct envelope ? 1/2 1/5 1/60 1/120 Combinatory go-mathematics-1 combinatory + – Bikram asked Aug 8, 2016 retagged Jun 27, 2017 by Arjun Bikram 383 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 3 votes 3 votes Total combination are 5! for the 5 letters to be placed. Favourable case(s) = 1 Probability = 1/120 Digvijay Pandey answered Sep 12, 2016 selected Sep 13, 2016 by Arjun Digvijay Pandey comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes Let the letters be: L1, L2, L3, L4, L5. Let the Envelopes be: E1, E2, E3, E4, E5. __ __ __ __ __ Let each position represent an envelope. Correct matching — 1. All possible matchings: 5! = 120. So, 1/120. Option D JashanArora answered Dec 16, 2019 JashanArora comment Share Follow See all 0 reply Please log in or register to add a comment.