Question # 1

The probability to get an odd number in a dice thrown once is

Choose an answer

6

1

1/6

1/2

If S is a sample space and event set E = S then P(E) is

Choose an answer

>0

1

<1

0

How many 3 digit numbers can be formed by using each one of the digit 2, 3, 5, 7, 9 only once?

Choose an answer

15

24

60

120

The number of the diagonals of a 6 sided figure is

Choose an answer

15

21

9

6

What is the probability of being born on Wednesday?

Choose an answer

1/7

1/2

1/3

1/8

If n is a positive integer then n! is

Choose an answer

(n - 1) (n - 2) .....3,.2.1

n(n - 1) (n - 2) ...3.2.1

n(n - 1 ) ( n -2) ... 3

None of these

How many arrangements of the letters of the word ADDING can be made

Choose an answer

36

360

24

6

How many arrangements of the letters of the word PAKISTAN cab be made

Choose an answer

A combination lock on a suitcase has 3 wheels each labeled with nine digits from 1 to 9. If an opening combination is a particular sequence of three digits with no repeats, the probability of a person guessing the right combination is

Choose an answer

1 / 500

1 / 504

1 / 252

1 / 250

There are 25 tickets bearing number 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

Choose an answer

7 / 25

9 / 25

11 / 25

None of these

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

Choose an answer

260

356

410

96

Choose an answer

Number of permutations of n distinct objects taken r(<n - 3) at a time which exclude 3(<n) particular objects is

Choose an answer

3! P(n, r - 3)

P(n, 3) P(n, r - 3)

P(r, r)P(n, r - 3)

P(n - 3, r)

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

Choose an answer

1 / 18

7 / 18

13 / 18

11 / 18

n(n - 1) (n - 2) .... (n - r + 1) = ______

Choose an answer

The domain of a finite sequence is a

Choose an answer

Set of natural numbers

R

Subset of N

Proper subset of N

5 unbiased coins coins are tossed simultaneously. The probability of getting at least one head is

Choose an answer

1 / 32

31 / 32

1 / 16

None of these

If A and B are two disjoint events then

Choose an answer

P(A∪B)=P(A)+P(B)

P(A∪B)=P(A)-P(A∪B)

P(A∪B)=P(A)or P(B)

None

If S is a sample space and event set E =Φ then P(E) is

Choose an answer

>0

1

<1

0

The key for opening a door is in a bunch of 10 keys. A man attempts to open the door by trying the keys at random discarding the wrong key. The probability that the door is opened in the 5th trial is

Choose an answer

1 / 10

2 / 10

3 / 10

4 / 10

Number of combination of zero or more things out of n different things

Choose an answer

nPn

nPr

nCr

2n

In a school there are 150 students Out of these 80 students enrolled for mathematics class.50 enrolled for English class and 60 enrolled for Physics class The student enrolled for English cannot attend any other class but the students of mathematics and Physics can take two courses at a time find the number of students who have taken both physics and mathematics.

Choose an answer

40

30

50

60

probability of a certain event is

Choose an answer

0

-1

1

∞

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

Choose an answer

103 / 108

10 / 216

93 / 108

None of these

Given two independent event A and B such that P(A) = 0.30 and P(B) = 0.60. Probability of getting neither A nor B is

Choose an answer

0.28

0.13

0.12

0.42

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

Choose an answer

{(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

The number of ways of arranging the letter AAAAA BBB CCC D EE F in a row when no two C's are together is

Choose an answer

9. 8. 7. 6= ______

Choose an answer

The sample space for tossing a coin twice is

Choose an answer

{H, T}

{HH, HT, TH, TT}

{H, T, HH}

{HH, HT, TT}

More Classes

Other Links

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

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer