1. | is equal to Options: A. B. C. D.None of these |
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2. | If ^{n} c_{r-1} = 56, = 28 and ^{n} c_{r+1} = 8, then r is equal to |
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3. | The number of ways in which 6 men can be arranged in a row so that the particular 3 men sit together,is Options: A. B. C. D.None of these |
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4. | The number of arrangements of the letters in the word FAILURE, so that vowels are always! coming together is |
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5. | is equal to Options: A. B. C. D.None of these |
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6. | The number of words that can be made by rearranging the letters of the word APURNA so that vowels and consonants appear alternate is |
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7. | A question paper contains 6 questions, each having an alternative.The number of ways an examine can answer one or more questions is |
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8. | The ways of selecting 4 letters from the word EXAMINATION is |
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9. | In a group of boys the number of arrangement of 4 boys is 12 times the number of arrangements of 2 boys.The number boys in the group is |
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10. | The Supreme Court has given a 6 to 3 decision upholding a lower court; the number of mays it can give a majority decision reversing the lower court is |
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11. | The value of |
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12. | Eight guests have to be seated 4 on each side of a long rectangular table. 2 particular guests desire to sit on one side of the table and 3 on the other side. The number of ways in which the sitting arrangements can be made is |
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13. | The number of arrangement of the letters of the word COMMERCE is |
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14. | 7! is equal to |
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15. | If the letters word 'Daughter' are to be arranged so that vowels occupy the odd places, then number of different words are |
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16. | At an election there are 5 candidates and 3 members are to be elected. A voter is entitled to vote for any number of candidates not greater than the number to be elected. The number of ways a voter choose to vote is |
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17. | If =336 and =56,then n and r will be |
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18. | The number of ways in which the letters of the word DOGMATIC can be arranged is |
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19. | The number of ways in which 9 things can be divided into twice groups containing 2, 3, and 4 things respectively is |
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20. | If ^{n1+n}^{2} P_{2} = 132, ^{n1-}^{n2}P_{2} = 30 then, |
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