IBPS RRB PO Prelims 12 sep 2020 - Category wise Question and Answer Practice Test with Solutions & PDF

Question : 46 [IBPS-RRB-PO-Prelims-2020]

A and B can complete a work in 6 days. A, working alone can complete the same work in 9 days. In how many days, B alone can complete the $3/8$ of the work?

a) $25/4$

b) 9

c) $27/4$

d) $13/2$

e) 18

Answer »

Question : 47 [IBPS-RRB-PO-Prelims-2020]

The ratio of speed of a boat in still water and speed of the stream is 4 : 1. If the difference of the time taken by the boat in travelling 45 km upstream and downstream is 2 hours, then speed of the stream is

a) 3 km/hr

b) 2 km/hr

c) 4 km/hr

d) 5 km/hr

e) 6 km/hr

Answer »

Question : 48 [IBPS-RRB-PO-Prelims-2020]

If six years ago, A’s uncle’s age was 6 times the age of A at that time and two years hence A’s uncle ‘s age would be thrice A’s age at that time, what is the age of A?

a) 12

b) 12.5

c) 11

d) 11.33

e) 10

Answer »

Question : 49 [IBPS-RRB-PO-Prelims-2020]

A person travel 124 km at the average speed of 77.5 km/hr. If he travels 60 km at the speed of 75 km/hr, then at what speed be covers the rest of the distance?

a) 75 km/hr

b) 80 km/hr

c) 60 km/hr

d) 50 km/hr

e) 90 km/h

Answer »

Question : 50 [IBPS-RRB-PO-Prelims-2020]

Two pipes A and B can fill a tank in 24 minutes and 36 minutes. another pipe C can empty the filled tank in 18 minutes. All three pipes A, B and C are alternately open for 1 minute each in the empty tank such that pipe A is open first then pipe B and then pipe C. In what time the tank will be filled?

a) 69

b) 67

c) 201

d) 203

e) 198

Answer »