Q1. How many different words can be formed with the letter of the word “REGRESSIVE”
(a) 16800
(b) 30240
(c) 151200
(d) 90720
(e) 15120
Q2. In how many ways the word ‘INTICINCO’ can be written so that ‘T’ always comes at end.
(a) 720
(b) 1680
(c) 5040
(d) 1024
(e) 210
Q3. In how many different ways the letters of the word ‘ADVENTURE’ can be arranged such that ‘NT’ always come together?
(a) 8!
(b) 7!
(c) 9!
(d) 9! /2!
(e) 8! /2!
Q4. Find the no. of way to arrange the letters of word ‘EDUCATION’.
(a) 8!/2
(b) 10!/2
(c) 6!/2
(d) 7!/2
(e) 9!
Q5. In how many ways 5 boys can be seated among 8 girls around a circular desk such that no two boys seat together?
(a) 7620
(b) 6720
(c) 5040
(d) 40320
(e) 6620
Solutions
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