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Quantitative Aptitude

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Permutation, Combination & Probability

Question
5 out of 20
 

In how many ways can the letters of the word 'UNIVERSAL' can be arranged When E,R,S always comes together?



A 31240
B 32240
C 30240
D 29240
E None of These

Ans. C In word UNIVERSAL there are nine words when ERS comes together then

(ERS) (UNIVAL) means let ERS be one word and other are six word so total 7 word so

7! X 3! = 7 x 6 x 5 x 4 x 3 x 2 x 1 x 3x 2x1 = 30240

Permutation, Combination & Probability Flashcard List

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