Here goes interesting Aptitude Questions friends!
1.A boat can travel with a speed of 13km/hr in still water. If the speed of the stream is 4km/hr, find the time taken by the boat to go 68km downstream?
Answer: 4 hours. (speed downstream= (13+4)km/hr=17km/hr). Time taken to travel
68km downstream= 68/17 hrs= 4 hrs).
2.A Man's speed with current is 15km/hr and the speed of the current is 2.5km/hr. The man's speed against the current is?
Answer: 10km/hr.
Man's rate in still water=(15-2.5)km/hr=12.5km/hr.
Man's rate against the current=(12.5-2.5)km/hr=10km/hr.
3.A motorboat, whose speed in 15km/hr in still water goes 30km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream is?
Answer: 5km/hr
4.In one hour, a boat goes 11km/hr along the stream and 5km/hr against the stream. The speed of the boat in still water is?
Answer: 8km/hr.
speed in still water =1/2(11+5) kmph = 8 kmph.
1.A boat can travel with a speed of 13km/hr in still water. If the speed of the stream is 4km/hr, find the time taken by the boat to go 68km downstream?
Answer: 4 hours. (speed downstream= (13+4)km/hr=17km/hr). Time taken to travel
68km downstream= 68/17 hrs= 4 hrs).
2.A Man's speed with current is 15km/hr and the speed of the current is 2.5km/hr. The man's speed against the current is?
Answer: 10km/hr.
Man's rate in still water=(15-2.5)km/hr=12.5km/hr.
Man's rate against the current=(12.5-2.5)km/hr=10km/hr.
3.A motorboat, whose speed in 15km/hr in still water goes 30km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream is?
Answer: 5km/hr
4.In one hour, a boat goes 11km/hr along the stream and 5km/hr against the stream. The speed of the boat in still water is?
Answer: 8km/hr.
speed in still water =1/2(11+5) kmph = 8 kmph.
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