Night Class Quantitative Aptitude Questions for IBPS RRBs Exam 2017

Practice is the key to perfection in Quant, so brush up your skills and test yourself with these 15 questions of Quantitative Aptitude for IBPS RRB PO and Clerk 2017.

Q1. A man can type 20 lines in 10 minutes but he leaves 8% margin in each line. In how much time will he type 23 pages with 40 lines on each page leaving 25% more margin than before?

(a) 6hr 30min

(b) 7hr 45min

(c) 6hr 45min

(d) 7hr 30min

(e) None of these

Q2. A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hrs faster than the first pipe and 4 hrs slower than the third pipe. The time required by the first pipe is:

(a) 6 hrs

(b) 10 hrs

(c) 15 hrs

(d) 30 hrs

(e) None of these

Q3.  N number of men can finish a piece of work in 40 days. If there were 8 more men, the work could be finished in 10 days less. What will be double the original no of men?

(a)36

(b) 54

(c) 24

(d) 48

(e) None of these

Q4. Akshay starts working on a job and continues for 15 days and completes 36% of the work. To complete the work, he employs Monika and together they work for 20 days and completed the work.  What will be the efficiency ratio of Akshay and Monika?

(a) 7 : 5

(b) 4 : 3

(c) 5 : 3

(d) 1 : 3

(e) 3 : 1

Q5. 20 men can complete a piece of work in 15 days. After 5 days from the start of the work, some men left. If the remaining work was completed by the remaining men in 50/3 days, how many men left after 5 days from the start of the work?

(a) 10

(b) 9

(c) 11

(d) 8

(e) 6

Q6. Three taps A, B and C are connected to a water tank and the rate of flow of water from them is 42 litres/hr, 56 litre/hr and 48 litres/hr. Tap A and B fill the tank and tap C empties it. If the tank gets completely filled in 16 hours, what is the capacity of the tank?

(a) 146 litres

(b) 960 litres

(c) 800 litres

(d) 1200 litres

(e) 500 litres

Q7. A pump can be operated both for filling a tank and for emptying it. The capacity of tank is 2400 m3. The emptying capacity of the pump is 10 m3 per minute higher than its filling capacity. Consequently, the pump needs 8 minutes less to empty the tank than to fill it. Find the filling capacity of the pump. 

Q8. Five workers can complete a work in 8 hrs, assuming that every worker works with same efficiency. They started working at 10.00 a.m. If after 4.00 p.m., one worker is removed from the group every hour, what is the time when they will finish the work?

(a) 6.00 p.m.

(b) 7.00 p.m.

(c) 4.00 p.m.

(d) 8.00 p.m.

(e) None of these

Q9. Krishna can do a work in 10 days while Mohan can do the same work in 20 days. They started work together. After 3 days Krishna left the work and Mohan completed the remaining work alone. The number of days required when Mohan worked alone to complete the work was how many more than the number of days required when both worked together to complete the work?

Q10. If 3 men and 5 women do a piece of work in 8 days and 2 men and 7 children do the same piece of work in 12 days. How many women can do as much work in a day as 21 children?

(a) 10 

(b) 15

(c) 12

(d) 7

(e) None of these

Q11. A contractor undertook to complete a work in 120 days. He employed 200 men. In 72 days only half of the work was done. How many more men should be employed to complete the work in time?

(a) 100

(b) 120 

(c) 80

(d) 50

(e) None of these

Q12. P and Q together can complete a work in 8 days, O and P together can complete the same work in 12 days and O and Q together can complete the same work in 16 days. In how many days can O, P and Q together complete the same work?

Q13. A and B working together can do a piece of work in 10 days, B alone could to it in 20 days,  Supposing B works it for 4 days, in how many days A alone could finish the remaining work?  

(a) 9 days

(b) 12 days

(c) 16 days

(d) 10 days

(e) None of these

Q14. A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?

(a) 12 days

(b) 15 days

(c) 16 days

(d) 18 days

(e) None of these

Q15. A work can be completed by P and Q in 12 days and by Q and R in 15 days and by R and P in 20 days. In how many days P alone can finish the work?

(a) 10

(b) 20

(c) 30

(d) 60

(e) None of these