Mathematics Quiz For RRB NTPC : 18th February Time Speed and Distance

Q1. A boat can row 35 km upstream in 7 hours and the same distance downstream in 5 hours. What is the speed (in km/hr) of the boat in still water?
(a) 5
(b) 7a
(c) 9
(d) 6

Q2.Vishnu travelled equal distances at speeds of 10 km/hr., 30 km/hr, and 8 km/hr took a total of 15.5 minutes to complete. Find the total distance he travelled, in km.
(a) 1
(b) 3
(c) 4
(d) 2

Q3. Two cars start from a house at an interval of 10 minutes and travel at a speed of 20 km/hr. With how much speed (km/hr.) should a woman coming from the opposite direction towards the house travel, to meet the cars at an interval of 8 minutes?
(a) 5
(b) 6
(c) 7
(d) 4

Q4. Speed of a boat in still water is 12 kmph and that of the current is 3 kmph. A man rows a boat upstream up to 135 km and returns downstream to the starting point. Find the total time taken for the entire journey in hours.
(a) 24
(b) 48
(c) 36
(d) 30

Q5. The speed of car M is twice that of car W. If car M covers 120 km in 2 hrs & 30 mins, what is the speed of car W?
(a) 36 kmph
(b) 48 kmph
(c) 24 kmph
(d) 42 kmph

Q6. A train of length 600 metre crosses a platform of length 1000 metre in 80 seconds. What is the speed (in m/s) of the train?
(a) 20
(b) 72
(c) 16
(d) 36

Q7. Car-I covers a distance in a certain time. Car-II takes double the time to cover half the same distance.
Find the ratio of their respective speeds.
(a) 1:2
(b) 1:4
(c) 2:1
(d) 4:1


Q8. A person walks through a distance of 600 m in 5 minutes. What is his speed in kmph?
(a) 8.6 kmph
(b) 8.4 kmph
(c) 6.8 kmph
(d) 7.2 kmph

Q9. A car covers a certain distance in 45 minutes at a speed of 60 kmph. What should be the speed in kmph, if it has to cover the same distance 5 minutes earlier?
(a) 62
(b) 58.25
(c) 55
(d) 67.5

Q10. Payal covers a distance of 1500 meter in 3 min. find the time in which she covers 450 meter distance at same speed
(a) 72 sec
(b) 45 sec
(c) 54 sec
(d) 36 sec

Solutions:

 

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