Quantitative Aptitude Quiz For IBPS RRB PO, Clerk Prelims 2021- 28th April

Q1. The speed of boat in still water is 5 km/hr more than speed of current and the ratio of speed of boat in downstream to the speed of boat in still water is 4 : 3. Find downstream distance covered by boat in 3 hours.
(a) 33 km
(b) 30 km
(c) 36 km
(d) 39 km
(e) 24 km

Q2. The length of train A is twice that of train B and speed of train A is half of that of train B. If train A crosses a man in 4 sec. then find how long will train B take to cross train A if they go in same direction.
(a) 3s
(b) 4s
(c) 5s
(d) 6s
(e) None of these

Q3. A train crosses a bridge and a platform of length 450 m and 700 m in 20 sec and 30 sec respectively. Find the speed of the train.
(a) 25 m/s
(b) 26 m/s
(c) 25.5 m/s
(d) 27 m/s
(e) 28 m/s

Q4. The speed of a boat in still water is 5 km/hr and speed of current is 3 km/hr. If time taken to cover a certain distance upstream is 8 hours then how long will the boat take to cover the same distance downstream?
(a) 2.5 hrs.
(b) 3 hrs.
(c) 2 hrs.
(d) 3.5 hrs.
(e) 1.5 hrs.

Q5. Downstream speed of a boat is 5 km/hr more than its upstream speed and the speed of boat in still water is 280% more than the speed of sream. Find the total time taken by boat to travel 42 km in downstream and 31.5 km in upstream?
(a) 7 ½ hr
(b) 8 hr
(c) 9 hr
(d) 9 ½ hr
(e) 10 hr

Q6. While travelling in opposite direction, two trains of equal length crosses each other in 5 seconds. If the speed of trains are 72 km/hr and 40 ms¯¹. Calculate the length of trains.
(a) 300 meter
(b) 150 meter
(c) 120 meter
(d) 90 meter
(e) None of these

Q7. Speed of stream of river is 20% of speed of boat in downstream and time taken to cover 48 km in upstream is 4 hr. and speed of boat in still water is equal to speed of train A which cross a standing man in 36 sec. Then find length of train A ?
(a) 220 m
(b) None of these
(c) 240 m
(d) 120 m
(e) 160 m

Q8. The ratio of time taken to run a certain distance by Ram and Mohan is 4 : 3 and thus Mohan wins the race by 360 m. what is the distance to race course ?
(a) 1380 m
(b) 1400 m
(c) 1440 m
(d) 1820 m
(e) 1080 m

Q9. Find the speed of stream if a boat covers 36 km in downstream in 5 hours which is 3 hours less in covering the same distance in upstream.
(a) 1.35 km/hr
(b) 1.24 km/hr
(c) 1.15 km/hr
(d) 2.2 km/hr
(e) None of these

Q10. Due to bad condition of road normal speed of car is reduced by 20 km/hr and it take 48 minutes more to cover 320 km. What time it takes to cover same distance with his normal speed?
(a) 4.2 hour
(b) 2.8 hour
(c) 3.2 hour
(d) 3.5 hour
(e) 3.6 hour

Q11. Shyam goes to his office which is 96 km away from his home. He walks 12 1/2% of total journey and remaining distance covered by running. He walks at the speed of 8 km/hr and run at the speed of 12 km/hr. Find the time to cover the whole journey?
(a) 6 hr
(b) 8.5 hr
(c) 7.5 hr
(d) 8 hr
(e) 9 hr

Q12. Time taken by boat to cover 164 km in upstream is 50% more than time taken by boat while returning. Find the time taken by man to cover 100 km in still water if speed of man is equal to speed of boat in still water and speed of stream is 10 km/hr?
(a) 4 hr
(b) 6 hr
(c) 5 hr
(d) 2 hr
(e) 3 hr

Q13. Ratio between speed of boat in still water to downstream speed is 3 : 4 and boat takes 1 hour 40 minutes more to cover 80 km in still water than in downstream. Find time taken by boat to cover distance of 36 km in upstream?
(a) 4.5 hours
(b) 5.5 hours
(c) 3.5 hours
(d) 2.5 hours
(e) 1.5 hours

Q14. Ram starts his journey from city A to city B with the speed of 90 km/hr and from city B to C (city C is after city B) with the speed of 60 km/hr. If total distance between city A to C is 300 km and average speed of whole journey is 75 km/hr, then find the distance between city A to B?
(a) 180 km
(b) 120 km
(c) 160 km
(d) 200 km
(e) 240 km

Q15. A man can row the boat in downstream from point A to C in 16 hours. But he return from point B, which is exactly mid-point of A and C to upstream in 12 hours. Find the ratio of speed of stream to the speed of man in still water ?
(a) 1 : 5
(b) 2 : 3
(c) 3 : 2
(d) 4 : 3
(e) 5 : 3

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