Find in how many ways can letters of the word PESSIMISTIC be arranged such that no two S and no two I can come together along with S and I cannot come together.
Permutations
Combinatorics
Number Theory
Answer: 2400
ISI Entrance, TOMATO Objective, Problem 145
Combinatorics by Brualdi.
Arranging PESSIMISTIC generally in
ways
The letters P E M T C can be arranged in 5!=120 ways
Remaining 6 slots with six letters 3 S and 3 I can be arranged in 
=20 ways. Then number of ways =2400
Watch the video
I.S.I. & C.M.I. Entrance Program
Taught by students and alumni of I.S.I. & C.M.I.
Find in how many ways can letters of the word PESSIMISTIC be arranged such that no two S and no two I can come together along with S and I cannot come together.
Permutations
Combinatorics
Number Theory
Answer: 2400
ISI Entrance, TOMATO Objective, Problem 145
Combinatorics by Brualdi.
Arranging PESSIMISTIC generally in
ways
The letters P E M T C can be arranged in 5!=120 ways
Remaining 6 slots with six letters 3 S and 3 I can be arranged in =20 ways. Then number of ways =2400
Watch the video
I.S.I. & C.M.I. Entrance Program
Taught by students and alumni of I.S.I. & C.M.I.
