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Numerical Ability for SBI Clerk Prelims 2018
Numerical 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. Acid and water are mixed in a vessel A in the ratio of 5 : 2 and in the vessel B in the ratio 8 : 5. In what proportion should quantities be taken out from the two vessels so as to form a mixture in which the acid and water will be in the ratio of 9 : 4?
(a) 7 : 2
(b) 2 : 7
(c) 7 : 4
(d) 2 : 3
(e) 7 : 3
Q2. A policeman starts to chase a thief. When the thief goes 10 steps the policeman moves 8 steps and 5 steps of the policeman are equal to 7 steps of the thief. The ratio of the speeds of the policeman to the thief is:
(a) 25 : 28
(b) 25 : 26
(c) 28 : 25
(d) 56 : 25
(e) 26 : 25
Q3. Stanic and Paul take a piece of work for Rs. 28,800. One alone could do it in 36 days, the other in 48 days. With the assistance of an expert, they finish it in 12 days. How much remuneration the expert should get?
(a) Rs. 10000
(b) Rs. 18000
(c) Rs. 16000
(d) Rs. 12000
(e) Rs. 14000
Q4. A and B together can complete a job in 8 days. Both B and C, working alone can finish the same job in 12 days, A and B commence work on the job, and work for 4 days, where upon A leaves, B continues for 2 more days, and then he leaves, after C starts working and finishes the remaining job. How many days will C require to complete remaining work?
(a) 5 days
(b) 8 days
(c) 3 days
(d) 4 days
(e) 6 days
Q5. A pump can fill a tank with water in 2 hours. Because of a leak in the tank it was taking 7/3 hours to fill the tank. The leak can drain all the water off the tank in:
(a) 8 hours
(b) 7 hours
(c) 13/3 hours
(d) 14 hours
(e) 12 hours
Q6. The distance between 2 places R and S is 42 km. Anita starts from R with a uniform speed of 4 km/h towards S and at the same time Romita starts from S towards R also with some uniform speed. They meet each other after 6 hours. The speed of Romita is
(a) 18 km/hr
(b) 20 km/hr
(c) 3 km/hr
(d) 8 km/hr
(e) 6 km/hr
Q7. A boat moves downstream at the rate of 1 km in 15/2 minutes and upstream at the rate of 5 km an hour. What is the speed of the boat in the still water?
Q8. In an examination, a student scores 4 marks for every correct answer and losses 1 mark for every wrong answer. A student attempted all the 200 questions and scored in all 200 marks. The number of questions, he answered correctly was:
(a) 82
(b) 80
(c) 68
(d) 60
(e) 75
Q9. M, P and Q together started a business. M invested Rs. 6,500 for 6 months, P invested Rs. 8,400 for 5 months and Q invested Rs. 10,000 for 3 months. M is working member for which he gets 5% of total profit extra. If the total gain is Rs. 7,400, then Q’s profit share is:
(a) Rs. 1,900
(b) Rs. 2,100
(c) Rs. 3,200
(d) Rs. 1800
(e) Rs. 2700
Q10. A copper wire is bent in the form of an equilateral triangle and has area 121√3 cm square. If the same wire is bent to form a circle, the area (in cm2) enclosed by the wire is (take π=22/7)
(a) 364.5
(b) 693.5
(c) 346.5
(d) 639.5
(e) 356.5
Directions (11-15): The graph shows the no. of students in two classes A and B in five different years. Read the following graph and answer accordingly.
Q11. What is the sum of differences between the number of students through all these years in school A and school B?
(a) 120
(b) 130
(c) 125
(d) 110
(e) 140
Q12. The total number of students in 2012 and 2015 is what percent of the total number of student from A in all these years?
(a) 63.6%
(b) 65%
(c) 70%
(d) 59%
(e) 60%
Q13. What is the ratio between total Number of students Class B for all the years to the total number of student in class A for all the years?
(a) 31 : 33
(b) 32 : 35
(c) 32 : 33
(d) 29 : 33
(e) 33 : 35
Q14. What is the sum total of the student for class A in 2011, 2013 and total number of students in 2015 & 2016 for class B?
(a) 1560
(b) 1400
(c) 1500
(d) 1460
(e) None of these
Q15. Total students in class B for all the years is approximately what percent less than total no of students in both schools for all these years?
(a) 55%
(b) 58%
(c) 60 %
(d) 50.8%
(e) 62.2%
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