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

2. ⁶P₄ is equal to

3. ⁿPᵣ =

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

5.

6. In a class of 100 students, 60 drink tea, 50 drink coffee and 30 drink both. A student from this class is selected at random. The probability that the student takes at last one of 2 drinks is

7. The number of words that can be formed out of the letters of the word MATHEMATICS is

8. In how many ways can 7 keys be arranged in a circular key ring

9. All letters of the word “AGAIN” are permuted in all possible ways and the words so formed (with or without meaning) are written as in dictionary, then the 50th word is:

10. ⁴C₄ = ?

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

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

13. Riaz, Saba, Maria, Shehzad are to give speeches in a class. The teacher can arrange the order of their presentation in

14. ⁶P₃ =

15. The value of ⁵C₂ is

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

17. (n+1)n(n–1)/3.2.1 =

18. 6.5.4 =

19. 1/20.19.18.17 =

20. Probability theory was introduced by ___________

21. How many signals can be given with three different flags when any number of them may be used

22. n(n–1)/3.2.1 =

23. What is the probability to get a block jack from a well shuffled pack of playing cards?

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

25. Four cards are drown at random from a pack of 52 playing cards. The probability of getting all the four cards of the same suit 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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