1. | There are 12 points in a plane of which 5 are collinear. The number of triangles is |
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2. | The results of 8 matches (Win, Loss or Draw) are to be predicted. The number of differe forecasts containing exactly 6 correct results is |
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3. | is equal to Options: A. B. C. D.None of these |
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4. | The number of ways in which the letters of the word DOGMATIC can be arranged is |
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5. | If ^{n}c10 = ^{n}c_{14}, then is |
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6. | The number of 4 digit numbers formed with the digits 1, 1, 2, 2, 3, 4 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 number of ways in which 7 boys sit in a round -table so that two particular boys may sit together is |
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9. | A committee of 3 ladies and 4 gents is to be formed out of 8 ladies and 7 gents. Mrs. X refuses to serve in a committee in which Mr. Y is a member. The number of such committees is |
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10. | There are 10 trains plying between Calcutta and Delhi. The number of ways in which a person can go from Calcutta to Delhi and return by a different train is |
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11. | 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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12. | ^{n}P_{r} can also written as Options: A. B. C. D.None of these |
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13. | In ^{n}P_{r} =n (n-1) (n-2) ........................ (n-r-1), the number of factor is |
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14. | If 12 school teams are participating in a quiz contest, then the number of ways the first, second and third positions may be won is |
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15. | The total number of 9 digits numbers of different digits is |
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16. | The sum of all 4 digit number containing the digits 2, 4, 6, 8, without repetitions is |
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17. | 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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18. | In ^{n}P_{r}, the restriction is Options: A.n > r B. C. D. None of these |
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19. | 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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20. | 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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