Aptitude Quiz - Permutations and Combinations 2

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Today Bankers Adda came back with a New Quiz on Aptitude
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1. In how many ways can the letters of the word 'LEADER' be arranged?

A. 72
B. 144
C. 360
D. 720
E. None of these





2. A box contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the box, if at least one black ball is to be included in the draw?

A. 32
B. 48
C. 64
D. 96
E. None of these



3. In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one boy should be there?

A. 159
B. 194
C. 205
D. 209
E. None of these



4. In how many different ways can the letters of the word 'MATHEMATICS' be arranged so that the vowels always come together?

A. 10080
B. 4989600
C. 120960
D. None of these



5. In how many ways a committee, consisting of 5 men and 6 women can be formed from 8 men and 10 women?

A. 266
B. 5040
C. 11760
D. 86400
E. None of these


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