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Probability

A bag contains 30 balls the probability of drawing a pink ball and white ball are 1/5 and 1/6 resp. What is the probability of black balls______?

A.8/15

B.1/2

C.17/30

D.19/30

Show Answer

Answer=Option D

Categories Aptitude Mcqs, ECAT Math, Probability Leave a comment

A bag containing 4 white balls 3 black and 5 blue balls. What is the probability of getting blue or black ball______?

A.1/6

B.2/3

C.5/12

D.3/5

Show Answer

Answer=Option B

Categories Aptitude Mcqs, ECAT Math, Probability Leave a comment

When a dice is rolled the probability of a number which is even and greater than 4.

A.0

B.1/4

C.1/6

D.1/9

Show Answer

Answer=Option C

Categories Aptitude Mcqs, ECAT Math, Probability Leave a comment

In a light bulb factory it is found that the probability of a bulb being defective is 0.12 estimate how many defective bulbs there would be in 1000 bulb.

A.

12

B.120

C.102

D.1000

Show Answer

Answer=Option B

Categories Aptitude Mcqs, ECAT Math, Probability Leave a comment

The probability that an egg will be broken during delivery from a supermarket to KIPS is 1/200. How many broken eggs would be there out of 800 eggs

A.50

B.30

C.10

D.4

Show Answer

Answer=Option D

Categories Aptitude Mcqs, ECAT Math, Probability Leave a comment

What is the probability of selecting a prime number from a list of natural number from 1 —-33 both inclusive if every number has equal chance of being selected.

A.1/8

B.1/33

C.15/33

D.1/3

Show Answer

Answer=Option D

Categories Aptitude Mcqs, ECAT Math, Probability Leave a comment

There are 40 students in a class of which 25 are boys and 15 are girls the teacher Sir Abid writes the name of each student on slip of papers. What is the probability that the name on the slip is of a boy.

A.5/8

B.3/8

C.3/5

D.0

Show Answer

Answer=Option A

Categories Aptitude Mcqs, ECAT Math, Probability Leave a comment

In question no 14 the probability of slip of even or odd number.

A.1/2

B.0

C.1

D.2 or 3

Show Answer

Answer=Option C

Categories Aptitude Mcqs, ECAT Math, Probability Leave a comment

In question no 14 Slip of number higher than 10.

A.0

B.10

C.1

D.1/2

Show Answer

Answer=Option A

Categories Aptitude Mcqs, ECAT Math, Probability Leave a comment

In question no 14 the probability of slip of number less than 5

A.2/5

B.1/5

C.3/5

D.1

Show Answer

Answer=Option A

Categories Aptitude Mcqs, ECAT Math, Probability Leave a comment
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