Mathematics ECAT Pre Engineering Chapter 9 Permutation, Combination and Probability Online Test With Answers

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Mathematics ECAT Pre Engineering Chapter 9 Permutation, Combination and Probability Online Test

Sr. # Questions Answers Choice
1 Two balanced dice are tossed once, the sample space when the integers on the faces of two dice are the same is {(1, 1), (2, 2), (3, 3)} {(4, 4), (5, 5), (6, 6)} {(1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6)} None of these
2
3
4 5 10 20 30
5
6
7 The probability to get an odd number in a dice thrown once is 1/2 1/6 1/3 2
8 How many arrangements of the letters of the word ADDING can be made
9 How many arrangements of the letter of the word PAKPATTAN can be made
10 How many arrangements of the letters of the word PAKISTAN cab be made
11 How many arrangements of the letters of the word MATHEMATICS can be made
12 The number of words that can be formed out of the letters of the word ASSASSINATION is
13 36 360 24 6
14 20. 19. 18. 17= _______
15
16 n(n - 1) (n - 2) .... (n - r + 1) = ______
17
18
19 (n + 2) (n + 1) n= ______
20 9. 8. 7. 6= ______
21 If n is a negative integer n! is 1 0 Unique Not defined
22 0 -1 1 2
23 The probability that a person A will be alive 15 years hence is 5/7 and the probability that another person B will be alive 15 years hence is 7/9. Find the probability that both will be alive 15 years hence 4/63 5/9 45/49 None of these
24 The sample space for tossing a coin twice is {H, T} {HH, HT, TH, TT} {H, T, HH} {HH, HT, TT}
25 P(A) + P(B) P(A) - P(B) P(A) . P(B) P(A) / P(B)
26 The probability that a slip of number divisible by 4 is picked from the slips bearing numbers 1, 2, 3, ...10 is 1/5 1/4 1/3 1/2
27 A dice is rolled. The probability that the dots on the top are greater than 4 is 1/6 1/3 1/2 1
28 The probability to get an odd number in a dice thrown once is 6 1 1/6 1/2
29 The sample space for tossing a coin once is {T, T} {H, H} {H, T} None of these
30 5 20 9 4
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