Permutations and combinations - Quantitative Aptitude (MCQ) questions for Q. 29405

Q.  How many combinations are possible while selecting four letters from the word ‘SMOKEJACK’ with the condition that ‘J’ must appear in it?
- Published on 12 Apr 17

a. 81
b. 8!/2!
c. 3!/2!
d. 41

ANSWER: 41
 
permutation combination

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