Probability Test

Result

Probability Test - 11

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

A lot consists of 40 mobile phones of which 32 are good, 3 have only minor defects and 5 have major defects. Ram will buy a phone if it is good or have minor defects. One phone is selected at random. The probability that it is acceptable to Ram is___.

A
4/5

B
3/5

C
3/40

D
7/8

Solution

Number of phones which are good and minor defects = 32 + 3 = 35
Number of possible outcomes = 35
Number of Total outcomes = 40
∴ Required Probability = 35/40 = 7/8
Question 2
1 / -0

1000 tickets of a lottery were sold and there are 5 prizes on these tickets. If Ramesh has purchased one lottery ticket, the probability of winning a prize is

A
1/1000

B
5/100

C
1/100

D
1/200

Solution

Number of possible outcomes = 5
Number of total outcomes = 1000
∴ Required Probability = 5/1000 = 1/200
Question 3
1 / -0

A bag contains 6 red, 8 white, 4 green and 7 black balls. One ball is drawn at random. The probability that the ball drawn is neither green nor white is

A
12/25

B
4/25

C
13/25

D
8/25

Solution

Total number of balls = 25
Number of Green and White balls = 4 +8 = 12
Number of balls neither green nor white = 25 - 12 =13
Number of possible outcomes = 13
Number of total outcomes = 25
∴ Required Probability = 13/25
Question 4
1 / -0

Cards marked with numbers 2 to 101 are placed in a box and mixed thoroughly. One card is drawn from the box. The probability that the number on the card is a prime number less than 20 is

A
4/25

B
12/25

C
8/25

D
2/25

Solution

Prime numbers less than 20 are 2, 3, 5, 7, 11, 13, 17, 19 = 8
Number of possible outcomes = 8
Number of total outcomes = 100
∴ Required Probability = 8/100 = 2/25
Question 5
1 / -0

The king, queen and jack of clubs are removed from a deck of 52 cards and the remaining cards are shuffled. A card is drawn from the remaining cards. The probability of getting a king is

A
3/52

B
3/49

C
4/52

D
4/49

Solution

K , Q , J of clubs i.e 3 cards are removed , therefore remaining cards = 52 - 3 = 49
3 kings are left in the pack
Number of possible outcomes = 3
Number of total outcomes = 52 – 3 = 49
∴ Required Probability = 3/49
Question 6
1 / -0

Raju bought a fish from a shop for his aquarium. The shop keeper takes out one fish from a tank containing 15 male fish and 18 female fish. The probability that the fish taken out is a male fish is

A
7/11

B
5/11

C
6/11

D
5/12

Solution

Total number of fish = 15 + 18 = 33
Male fish = 15
Number of possible outcomes = 15
Number of total outcomes = 15 + 18 = 33
Required Probability = 15/33 = 5/11
Question 7
1 / -0

A die is thrown twice. The probability that 5 will come up at least once is

A
25/36

B
1

C
0

D
11/36

Solution

Elementary events are
(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6)
(2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6)
(3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (3, 6)
(4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6)
(5, 1), (5, 2), (5, 3), (5, 4), (5, 5), (5, 6)
(6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6)
∴ Number of Total outcomes = 36
And Number of possible outcomes = 11
∴ Required Probability = 11/36
Question 8
1 / -0

Two dice are thrown simultaneously. The probability that the sum of the numbers appearing on the dice is 1 is

A
3

B
2

C
1

D
0

Solution

Elementary events are
(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6)
(2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6)
(3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (3, 6)
(4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6)
(5, 1), (5, 2), (5, 3), (5, 4), (5, 5), (5, 6)
(6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6)
∴ Number of Total outcomes = 36
And Number of possible outcomes (sum of numbers appearing on die is 1) = 0
∴ Required Probability = 0/36 = 0
Question 9
1 / -0

Two dice are thrown simultaneously. The probability that the product of the numbers appearing on the dice is 7 is

A
2

B
0

C
7

D
1

Solution

Elementary events are
(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6)
(2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6)
(3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (3, 6)
(4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6)
(5, 1), (5, 2), (5, 3), (5, 4), (5, 5), (5, 6)
(6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6)
∴ Number of Total outcomes = 36
And Number of possible outcomes (product of numbers appearing on die is 7) = 0
∴ Required Probability = 0/36 = 0

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Probability Test - 11

Result

Probability Test - 11

Score

-

Rank

-

SHARING IS CARING

Question 1

4/5

3/5

3/40

7/8

Solution

Question 2

1/1000

5/100

1/100

1/200

Solution

Question 3

12/25

4/25

13/25

8/25

Solution

Question 4

4/25

12/25

8/25

2/25

Solution

Question 5

3/52

3/49

4/52

4/49

Solution

Question 6

7/11

5/11

6/11

5/12

Solution

Question 7

25/36

1

0

11/36

Solution

Question 8

3

2

1

0

Solution

Question 9

2

0

7

1

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.