A. 3.6 sec
B. 18 sec
C. 36 sec
D. 72 sec
Speed of train relative to jogger = (45 - 9) km/hr = 36 km/hr.
= 10 m/sec.
Distance to be covered = (240 + 120) m = 360 m.
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Three runners A, B and C run a race, with runner A finishing 12 meters ahead of runner B and 18 meters ahead of runner C, while runner B finishes 8 meters ahead of runner C. Each runner travels the entire distance at a constant speed. What was the length of the race?
3 pumps, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?
In a game of 100 points, A can give B 20 points and C 28 points. Then, B a start of 8 m and still beats him by 8 sec. The speed of B is
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