ECAT Mathematics Permutations Combinations and Probability Online Test

Mathematics Permutations Combinations and Probability MCQS Online Test

ECAT Math Permutations Combinations and Probability Online Test

Total Questions: 74
Time Allowed: 40 Minutes
Total Marks: 74
How to Attempt Test: Please choose the right Option in MCQ-type question.
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ECAT Math Permutations Combinations and Probability Chapter Online Test

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Math

1. Two balanced dice are tossed once, the sample space when the integers on the faces of two dice are the same is

2. From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. In how ways can it be done?

3. Two cards are drawn at random from a well shuffled pack of cards. The probability that at least one of them is a face card is

4.

5. (n+1)n(n–1)/3.2.1 =

6. The number of permutations of the n objects of which there are p like objects of one kind, q like objects of the second kind nd r like objects of the third kind are

7. 19!/19!(19–19)! = ?

8. There are 25 tickets bearing numbers from 1 to 25. One ticket is drawn at random. The probability that the number on it is a multiple of 5 or 6 is

9. A card is drawn from a pack of cards numbered 1 to 52, the probability that the number on the card is a perfect square is

10. A number is selected at random form the three digit numbers, the probability that the number is divisible by 4 is

11. The number of words that can be formed out of the letters of the word MURREE is

12. 1/20.19.18.17 =

13. (n + 2)(n + 1) n =

14. If probability of bulb being defective is 0.2. estimate how many defective bulb there would be in 600 bulbs

15. If n (E₁) = 18 and n (E₂) = 6 and n (5) = 36 also E₁ and E₂ are independent then P(E₁ ∩ E₂) = ?

16. A die is rolled, what is the probability of getting a number which is even and greater than 2?

17. An unbiased die is thrown. Then the probability of getting a prime is

18. In different objects can be arranged taken all at a time in

19. 5 persons can be seated at a round table in

20. Factorial of -2 =

21. ⁿPᵣ = ?

22. 8.7.6/3.2.1 =

23. Three dice are thrown together. The probability of getting a total of at least 6 is

24. 6P1 is equal to

25. In how many ways can the letters of the word ‘LEADER’ be arranged?


 

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7 Comments

  1. whats the right answer for this mcq’s arrangment of fintite number of objects taken some or all the time??? i have confusion with this

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