# IBPS RRB Probationary Officier Exam 2018 : Practice Test Paper (Set-6)

Submitted by admin on Wed, 11/22/2017 - 03:27

**IBPS RRB PO (PRE) Exam - 201**8

## (Practice Questions)

**Q51. A tank is fitted with 8 pipes, some of which that fill the tank and
others that empty the tank. Each of the pipes that fills the tank fills it in 8
hours, while each of those that empty the tank empties it in 6 hours. If all the
pipes are kept open when the tank is full, it will take 6 hours to drain the
tank. How many of these are fill pipes?**(a) 5

(b) 3

(c) 4

(d) 6

(e) None of these

**Q52. The average monthly salary of 12 workers and 3 managers in a factory
was 600. When one of the managers whose salary was 720, was replaced with a new
manager, the average salary of the team went down to 580. What is the salary of
the new manager?**(a) 320

(b) 350

(c) 450

(d) 420

(e) None of these

**Q53. A sum of money invested for a certain number of years at 8% p.a.
simple interest amounts to Rs.180. The same sum of money invested for the same
number of years at 4% p.a. simple interest amounts to Rs.120 only. For how many
years was the sum invested?**(a) 25 years

(b) 35 years

(c) 32 years

(d) 28 years

(e) None of these

**Q54. A, B and C enter into a partnership by investing Rs.3600, Rs.4400 and
Rs.2800. A is a working partner and gets a fourth of the profit for his services
and the remaining profit is divided among the three in the ratio of their
investments. What is the amount of profit that B gets if A gets a total of Rs.
1800?**(a) Rs. 1200

(b) Rs. 1100

(c) Rs. 1300

(d) Rs. 1400

(e) None of these

**Q55. The barrel of a fountain pen is cylindrical in shape whose radius of
base is 0.7 cm and is 5 cm long. One such barrel in the pen can be used to write
300 words. A barrel full of ink which has a capacity of 15.4 cubic cm can be
used to write how many words?**(a) 540 words

(b) 430 words

(c) 600 words

(d) 590 words

(e) None of these

**Directions (61-65): In each of these questions, a number series is given.
In each series, only one number is wrong. Find out the wrong number. **

**Q61. 3601, 3602, 1803, 604, 154, 36, 12**(a) 3602

(b) 1803

(c) 604

(d) 154

(e) 36

**Q62. 4, 12, 42, 196, 1005, 6066, 42511**(a) 12

(b) 42

(c) 1005

(d) 196

(e) 6066

**Q63. 2, 8, 12, 20, 30, 42, 56**(a) 8

(b) 42

(c) 30

(d) 20

(e) 12

**Q64. 32, 16, 24, 65, 210, 945, 5197.5**(a) 945

(b) 16

(c) 24

(d) 210

(e) 65

**Q65. 7, 13, 25, 49, 97, 194, 385**(a) 13

(b) 49

(c) 97

(d) 194

(e) 25

**Q76. There are three positive integers. One-third of the average of the
three numbers is 8 less than the value of the highest number. The average of the
lowest and the second lowest number is 8. What is the highest number?**(a) 12

(b) 13

(c) 14

(d) 11

(e) None of these

**Q77. A mixture contains wine and water in the ratio of 3: 2 and another
mixture contains them in the ratio of 4: 5. How many litres of the latter must
be mixed with 3 litres of the former so that the resultant mixture may contain
equal quantities of wine and water?**(a) 4.5 litres

(b) 5.4litres

(c) 6.2 litres

(d) 5.5 litres

(e) None of these

**Q78. A dishonest dealer mixes 1 kg of sand with 5 kg of rice and sells the
entire mixture at 25% more than the cost price of rice. What is his net profit
percentage in this transaction?
(Assume that sand comes free)**(a) 50%

(b) 60%

(c) 55%

(d) 45%

(e) None of these

**Q80. A boat can travel ‘x’ km upstream in 4 hours and ‘y’ km downstream in
3 hours. If the speed of boat in still water is 5 km/h and the boat can travel a
distance of ‘x+y’ km downstreamin 4 hours, then find the speed of stream?**(a) 2 km/hr

(b) 5 km/hr

(c) 4 km/hr

(d) 3 km/hr

(e) None of these

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