Home > Aptitude> Permutation and Combination

1 . How many numbers can be formed with the digits 1, 6, 7, 8, 6, 1 so that the odd digits always occupy the odd places
A. 15 B. 12
C. 18 D. 18

2 . In how many ways can Ram choose a vowel and a constant from the letters of the word ALLAHABAD?
A. 4 B. 6
C. 9 D. 5

3 . Number of ways in which the letters of word GARDEN can be arranged with vowels in alphabetical order, is
A. 360 B. 240
C. 120 D. 480

4 . The number of ways in which a couple can sit around a table with 6 guests if the couple take consecutive seat is
A. 1440 B. 720
C. 5040 D. None of these

5 . How many different words beginning with O and ending with E can be formed with the letters of the word ORDINATE, so that the words are beginning with O and ending with E?<
A. 8! B. 6!
C. 7! D. 7!/2!




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