Probability Based Numerical Ability Questions for SBI Clerk Exam: 12th May 2018

Dear students,
Quantitative Aptitude for SBI Clerk Exam: 12th May 2018
Numerical Ability for SBI Clerk Prelims 2018

Today is the Day 21 of the SBI Clerk 60 Days Study Plan and the topic for Today's Numerical Ability or Quantitative Aptitude Practice Questions is Based on ProbabilityNumerical Ability Section has given heebie-jeebies to the aspirants when they appear for a banking examination. As the level of every other section is only getting complex and convoluted, there is no doubt that this section, too, makes your blood run cold. The questions asked in this section are calculative and very time-consuming. But once dealt with proper strategy, speed, and accuracy, this section can get you the maximum marks in the examination. Following is the Numerical Ability quiz to help you practice with the best of latest pattern questions.

Q1. What is the probability that card drawn at random from a pack of cards is either red or a king?
(a) 15/26
(b) 7/13
(c) 27/52
(d) 3/13
(e) 11/52

Q2. A bag has twelve bananas out of which four are rotten. Two bananas are selected at random. Find the probability that the bananas are of both types. 
(a) 2/9
(b) 23/40
(c) 7/18
(d) 4/9
(e) None of these

Q3. The probability of Sharmila and Shushma passing an exam is 2/5 and 3/5, respectively. Find the probability that at least one of them passes the exam. 
(a) 1/25
(b) 1/5
(c) 19/25
(d) 1/2
(e) 17/25

Q4. Bag 1 has three yellow and four blue balls and bag 2 has four yellow and three blue balls. One bag is selected at random and a ball drawn out of it. Find the probability that the ball drawn is yellow. 
(a) 1/2
(b) 12/49
(c) 3/7
(d) 5/7
(e) None of these

Q5. Two dice are thrown. The probability that both of them show an odd number greater than 3 is: 
(a) 1/36
(b) 1/6
(c) 2/3
(d) 1/4
(e) 5/36

Solutions (1-5):

Q6. In a class, there are 15 girls and 10 boys. Three students are selected at random. The probability that only girls or only boys get selected is: 
(a) 1/3
(b) 2/5
(c) 1/4
(d) 1/5
(e) 3/5

Q7. A number is selected at random from the first 30 natural numbers. What is the probability that it is either a multiple of 2 or a multiple of 3?  
(a) 13/30
(b) 19/30
(c) 12/35
(d) 17/30
(e) 23/30

Q8. There are four hotels in a town. If three men check into the hotels in a day then what is the probability that all of them do not check into the same hotel? 
(a) 15/16
(b) 63/64
(c) 3/64
(d) 1/16
(e) 17/64

Q9. Two letters are chosen out of the alphabets of the English language. Find the probability that both the letters are vowels. 
(a) 2/65
(b) 3/65
(c) 1/65
(d) 3/5
(e) 0.2

Q10. A coin is tossed successively three times. Find the probability of getting exactly one head or two head: 
(a) 1/2
(b) 3/4
(c) 2/3
(d) 1/4
(e) 3/8

Solutions (6-10):

 Q11. If a leap year is selected at random, what is the chance that it will contain 53 Mondays? 
(a) 1/7
(b) 3/7
(c) 2/7
(d) 1/3
(e) 4/5

Q12. From a group of 7 men and 4 ladies a committee of 6 persons if formed. What is the probability that the committee will consist of exactly 2 ladies? 
(a) 7/11
(b) 6/11
(c) 5/11
(d) 4/15
(e)None of these

Q13. Two dice are thrown simultaneously. What is the probability that the sum of the two numbers appearing on the top of the dice is 8. 
(a) 5/36
(b) 29/30
(c) 3/5
(d) 1/3
(e) 5/6

Q14. Two unbiassed coins are tossed simultaneously. Find the probability of getting atleast one head. 
(a) 3/4
(b) 1/4
(c) 1/2
(d) 2/3
(e) 1/3

Q15. Three cards are drawn from a pack of cards at random. What is the probability that they consist of two different colours? 
(a) 11/17
(b) 13/17
(c) 13/15
(d) 15/17
(e) 13/24

Solutions (11-15):

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