# Quiz – 1

Question 1

Time: 00:00:00
A packet contains 4 yellow, 6 green and 8 blue balls. Four balls are

drawn at random from the packet. The probability that all of them

are yellow, is:

3/210

3/210

1/3060

1/3060

4/510

4/510

1/510

1/510

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Question 2

Time: 00:00:00
A container contains 25 electric lights, out of which 5 are defective.

Three lights are chosen at random from this container. The probability

that at least one of these is defective, is:

68/112

68/112

58/115

58/115

50/114

50/114

48/113

48/113

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Question 3

Time: 00:00:00
In a classroom, 40% of the students offered English, 30% offered Hindi and 5% offered both.  If a student is selected at random, what is the probability that he has offered English or Hindi?

3/20

3/20

13/5

13/5

3/10

3/10

13/20

13/20

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Question 4

Time: 00:00:00
A container contains 3 green balls, 5 red balls and 6 violet balls.

Each ball is of a different size. The probability that the green ball

being selected is the smallest green ball.

1/3

1/3

1/5

1/5

1/4

1/4

1/120

1/120

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Question 5

Time: 00:00:00
If S and T are 2 independent actions and P(S) = 0.7 and P(T) = 0.8,

find P(A/B):

0.7

0.7

0.6

0.6

0.4

0.4

None

None

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Question 6

Time: 00:00:00
Digits 5, 6, 7 and 0, forms a 4 digit number without repetition.

Derive the probability that the formed number is a multiple of 5?

1/4

1/4

1/5

1/5

12/5

12/5

1/120

1/120

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Question 7

Time: 00:00:00
When a dice is thrown single time, what will be the probability to

get a number greater or equal to 5?

1/120

1/120

12/5

12/5

1/3

1/3

1/5

1/5

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Question 8

Time: 00:00:00
Rahul wants a Red or Blue ball. A bag contains 4 Red balls,

3 Green balls, and 2 Blue balls. He picks a ball from the bag randomly.

What is the probability that he will get a ball that he wants?

2/3

2/3

1/6

1/6

1/3

1/3

1/4

1/4

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Question 9

Time: 00:00:00
From a box that has 3 Red and 4 Black pencils, Sachin wants

to draw two pencils. What is the probability of getting at least one

Red pencil?

21/15

21/15

3/1

3/1

1/5

1/5

1/2

1/2

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Question 10

Time: 00:00:00
Neena has two bags, M and N with Apples and Oranges. M has 3

Apples and 4 Oranges. N has 6 Apples and 5 Oranges. When a fruit

is drawn from the bag randomly, what is the probability that both

the fruits are Apples?

52/115

52/115

57/115

57/115

58/115

58/115

59/115

59/115

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["0","40","60","80","100"]
["Need more practice! \r\n","Keep trying! \r\n","Not bad! \r\n","Good work! \r\n","Perfect! \r\n"]

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