Q2. A boat in upstream covers 110 km in same time as it covers 140 km in downstream. Find speed of stream is what percent of the speed of boat in still water.
(a) 12%
(b) 16%
(c) 15%
(d) 10%
(e) 20%
Q3. A man can row 30 km upstream and 44 km downstream in 10 hours. It is also known that he can row 40 km upstream and 55 km downstream in 13 hours. Find the speed of the man in still water.
(a) 10 km/hr
(b) 8 km/hr
(c) 12 km/hr
(d) 14 km/hr
(e) 16 km/hr
Q4. Aman starts from point A at 2 : 00 pm and move towards point B at a speed of 25 km/hr while Sandeep leave point B at 4 : 00 pm and move towards point A at a speed of 35 km/hr speed. If distance between A and B is 410 km, then at what time Aman and Sandeep cross each other?
(a) 7: 00 p.m.
(b) 8 : 00 p.m.
(c) 9 : 00 p.m.
(d) 10 : 00 p.m.
(e) 11 : 00 p.m.
Q5. The time taken by a boat to row 21 km with the stream is same as the time taken by it to row 12 km against the stream. If the speed of boat in still water is 5.5 kmph, find speed of stream ?
(a) 2 kmph
(b) 4 kmph
(c) 1.5 kmph
(d) 2.5 kmph
(e) 3.5 kmph
Q6. The time taken by a boat for covering â€˜X â€“ 18â€™ km upstream is equal to time taken by it for covering â€˜Xâ€™ km downstream. If upstream speed is 6 km/hr less than downstream speed and speed of boat in still water in 15 kmph. Find X.
(a) 45 km
(b) 54 km
(c) 40 km
(d) 48 km
(e) 60 km
Q7. Train A crosses a platform of 98 m length in 24 sec. Another Train B of same length as Train A crosses a pole in 12 sec. If speed of train A is 20% more than speed of train B. Find length of train A.
(a) 80 m
(b) 65 m
(c) 70 m
(d) 75 m
(e) 90 m
Q8. Ratio of time taken by a man to cover a distance in upstream then in downstream is 3 : 2. If speed of stream is 2 km/h then in what time man will cover a distance of 36 km in upstream.
(a) 4.5 hours
(b) 6 hours
(c) 3 hours
(d) 3.6 hours
(e) 5 hours
Q9. A train moving at a speed of 70 m/s crosses a man moving at a speed of 5 m/s in opposite direction of train in 2 sec. Find the time taken by the train to cross another train of length 120 m travelling at speed of 55m/s in same direction.
(a) 15 sec.
(b) 10 sec.
(c) 12 sec.
(d) 18 sec.
(e) 20 sec.
Q10. A thief robbed a shop and ran in a car at a speed of 60 km/h at 11:00 am. The Police located the position of thief and ran after him at 11:15 a.m. from shop in a car at 65 km/h. Find the time at which the thief will be caught?
(a) 2 : 00 p.m
(b) 3 :15 p.m
(c) 3 : 30 p.m
(d) 2 : 30 p.m
(e) 2 : 15 p.m
Q15. A man can row 27 km upstream and 56 km downstream in 17 hours. If speed of boat in still water is 150% more than speed of current, find speed of boat while travelling upstream?
(a) 5 kmph
(b) 3 kmph
(c) 2 kmph
(d) 8 kmph
(e) 7 kmph
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