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Frequently Asked IBPS Numerical Ability - Probability Questions with Answers

(#M40166743) IBPS QUESTION Probability Keep an EYE

There are 200 balls (numbered 1 to 200) in a box. Find the probability of choosing a ball which bears either perfect cube or perfect square and the unit digit is either multiple of 3 or multiple of 2?
A)13/200 B)3/50 C)17/200 D)11/200 E)None of these

Asked In IBPS Devendra Marghade (5 years ago)

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(#M40166340) IBPS QUESTION Keep an EYE

A bag has 15 red, green and blue balls. Number of each balls is different in the bag. Difference between red ball and green ball is same as difference between green ball and blue ball. Probability of selecting one blue ball from the bag is greater than 0.2, then number of blue balls in the bag can be
(A) 3 (B) 4 (C) 5 (D) 7 (E) 9
(a) Only B, C, D and E
(b) Only B, D, E
(c) All A, B, C, D and E
(d) Only C, D, E
(e) Only A, B, D, E

Asked In IBPS Devendra Marghade (6 years ago)

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(#M40166271) IBPS QUESTION Keep an EYE

There are three sections A, B and C in a class. Every section has some boy and some girl students in it. Probability of a girl being selected when one student is selected randomly from section A is 2/5, that from section B is 4/9 and that from section C is 5/9. If the ratio of total number of students in sections A, B and C is 10 : 12 : 9, then what is the probability of a girl being selected when one student is selected randomly from the students from all the three sections together? (A) 14/31 (B) 11/23 (C) 13/31 (D) 43/93

Asked In IBPS Devendra Marghade (6 years ago)

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(#M40166932) IBPS QUESTION Keep an EYE

There are 8 blue, 5 red and 7 yellow balls. What is the probability of choosing either 1 red or yellow ball?
A)2/3 B)3/4 C)4/5 D)3/5 E)1/2

Asked In IBPS Devendra Marghade (5 years ago)

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(#M40166345) IBPS QUESTION Keep an EYE

Two bags A and B contain different colours of balls. In bag A, there are 2 red balls, 3 green balls and 5 white balls while bag B contain 4 red balls, ‘x’ green balls and 3 white balls. If the probability of drawing one white ball from bag A is 1/6 more than the probability of drawing one red ball from bag B, then find the value of ‘x’. A) 4 B) 6 (C) 5 (D) 7 (E) None of these

Asked In IBPS Devendra Marghade (6 years ago)

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(#M40166602) IBPS QUESTION Keep an EYE

There are 5 red bikes, x blue bikes and y black bikes in a showroom. The probability that a blue bike is selected for test drive is 7/24 while the probability that a black bike is selected for test drive is ½. Find the value of (x – y + x * y).
A) 81 B) 79 C) 82 D) 78 E) 83

Asked In IBPS Devendra Marghade (5 years ago)

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(#M40166584) IBPS QUESTION Keep an EYE

A bag has 4 red and 5 black balls. A second bag has 3 red and 7 black balls. One ball is drawn from the first bag and two from the second. The probability that there are two black balls and a red ball is:
A)14/45 B)11/45 C)9/54 D)7/15 E)None of these

Asked In IBPS Devendra Marghade (5 years ago)

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(#M40166525) IBPS QUESTION Keep an EYE

A bag contains 5 black balls, 6 red balls and 3 white balls. If two balls are picked at random what is the probability that either both are black or both are white in colour?
A) 3/7 B) 2/7 C) 3/14 D) 1/7 E) 5/14

Asked In IBPS Devendra Marghade (5 years ago)

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(#M40166494) IBPS QUESTION Probability Keep an EYE

In a class, 4 girls and 5 boys are there. Find the probability of selecting 2 boys and 3 girls for an event :
A) 19/63 B) 17/63 C) 23/63 D) 29/63 E) 20/63

Asked In IBPS Devendra Marghade (5 years ago)

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(#M40166449) IBPS QUESTION Number Series Keep an EYE

A box contains red, green and blue colored balls. When one ball is drawn randomly from the box, the probability that it is either green or blue is 2/3. Also, the probability that the ball drawn randomly from the box is either red or green is 3/5. When two balls are drawn randomly from the box, the probability that both balls are of green color is 1/15. Find the total number of balls in the box.
A) 15 B) 20 C) 30 D) 45 E) 60

Asked In IBPS Devendra Marghade (5 years ago)

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