1. | is equal to Options: A. B. C. D.None of these |
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2. | The number of even numbers greater than 300 can be formed with the digits 1, 2, 3, 4, 5 without repetion is |
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3. | The total number of ways in which six 't' and four '-' signs can be arranged in a line such that no two '-' signs occur together is Options: A. B. C.35 D.None of these |
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4. | The number of arrangements of 10 different things taken 4 at a time in which one particular thing always occurs is |
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5. | The value of |
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6. | The number of parallelograms that can be formed from a set of four parallel lines intersecting another set of three parallel lines is |
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7. | The number of ways the letters of the word "Triangle" to be arranged so that the word 'angle' will be always present is |
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8. | The number of ways in which a person can chose one or more of the four electa appliances : T.V, Refrigerator, Washing Machine and a cooler is |
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9. | 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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10. | If ^{n}c10 = ^{n}c_{14}, then is |
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11. | 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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12. | In ^{n}P_{r ,}n is always |
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13. | There are 5 speakers A,B,C,D,E.The number of ways in which A will speak always before B is Options: A.24 B. C.5! D.None of these |
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14. | The number of different factors the number 75600 has is |
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15. | The number of ways a person can contribute to a fund out of 1 ten-rupee note, 1 five- rupee note, 1 two-rupee and 1 one rupee note is |
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16. | In ^{n}P_{r}, the restriction is Options: A.n > r B. C. D. None of these |
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17. | The number of arrangements of the letters in the word FAILURE, so that vowels are always! coming together is |
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18. | The sum of all 4 digit number containing the digits 2, 4, 6, 8, without repetitions is |
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19. | The number of numbers lying between 10 and 1000 can be formed with the digits 2,3,4,0,8,9 is |
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20. | 0! is a symbol equal to |
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