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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Page 1 of 3

Math

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

2. ⁶P₃ =

3. 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

4. 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

5. The letters of the LAHORE taken all at a time can be written in

6. The probability of getting 5, when one dice is called

7. An arrangement of a finite number of objects taken some or all at a time is called their

8. 1/20.19.18.17 =

9. 4! + 5! = ?

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

11. Probability theory was introduced by ___________

12. The value of ⁵C₂ is

13. 8.7.6/3.2.1 =

14. The number of significant numbers which can be formed by using any number of the digits 0, 1, 2, 3, 4 but using each not more than once in each number is

15. Two dice are thrown simultaneously find the probability that the sum of the dots of the dice is a prime no?

16. The number of words that can be formed out of the letters of the word BANNU is

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

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

19. 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

20. If A and Bare mutually exclusive then P(AUB) = ?

21. n(n–1)/3.2.1 =

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

23. If 4 ⁶Pᵣ = ⁶Pᵣ₊₁, then r is equal to

24. Two unbiased dice are thrown. The probability that the total score is > 5 is

25. The probability that a 3 – digit no. chosen at random divisible by 5 is


 

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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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