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Q:
A boat takes half time in moving a certain distance downstream than upstream. what is the ratio between the rate in still water and the rate of current?
879 0

Answer : 2. "3 : 1"

Q:
A man swims downstream distance of 15 km in 1 hour. If the speed of the current is 5 km/ hr, the time taken by the man to swim the same distance upstream is :
989 0

Answer : 4. "3 hrs"

Q:
Ratio between speed of boat in still water to speed of stream is 7 : 2. If 126 km is travelled downstream in 3.5 hours then find the difference between speed of boat in still water to speed of stream(in kmph)?
1289 0

Answer : 4. "20"

Q:
A motorboat can travel at 10 km/hr. in still water it travelled 91 km downstream in a river and then returned taking at together 20 hours. Find the rate of flow of the river
739 0

Answer : 3. "3 km/hr"

Q: A man went downstream for 28 km in a motor boat and immediately returned. It took the man twice as long to make the return trip. If the speed of the river flow were twice as high, the trip downstream and back would take 672 minutes. Find the speed of the boat in still water and the speed of the river flow. 52346 0

Answer : 2. "9 km/hr, 3 km/hr"
Explanation :
Answer: B) 9 km/hr, 3 km/hr Explanation: Let the speed of the boat = p kmph Let the speed of the river flow = q kmph From the given data, 2 x 28p + q = 28p - q => 56p - 56q -28p - 28q = 0 => 28p = 84q => p = 3q. Now, given that if 283q + 2q + 283q - 2q = 67260=> 285q + 28q = 67260=> q = 3 kmph=> x =3q = 9 kmph Hence, the speed of the boat = p kmph = 9 kmph and the speed of the river flow = q kmph = 3 kmph.

Q:
A boat running downstreams covers a distance of 30 kms in 2 hours. While coming back the boat takes 6 hours to cover the same distance. If the speed of the current is half that of the boat, what is the speed of that boat in kmph?
1187 0

Answer : 3. "10"

Q:
A man can row 30 km downstream and return in a total of 8 hours. If the speed of the boat in still water is four times the speed of the current, then the speed of the current is:
1465 0

Answer : 2. "2 km/hr "

Q:
A man can row $$7{1\over 2}km/h$$ in still water. If a river running at 1.5 km an hour, it takes him 50 minutes to row to a place and back, how far off is the place?
717 0

Q:
A boat takes half time in moving a certain distance downstream than upstream. what is the ratio between the rate in still water and the rate of current?
879 0

Answer : 2. "3 : 1"

Q:
A man swims downstream distance of 15 km in 1 hour. If the speed of the current is 5 km/ hr, the time taken by the man to swim the same distance upstream is :
989 0

Answer : 4. "3 hrs"

Q:
Ratio between speed of boat in still water to speed of stream is 7 : 2. If 126 km is travelled downstream in 3.5 hours then find the difference between speed of boat in still water to speed of stream(in kmph)?
1289 0

Answer : 4. "20"

Q:
A motorboat can travel at 10 km/hr. in still water it travelled 91 km downstream in a river and then returned taking at together 20 hours. Find the rate of flow of the river
739 0

Answer : 3. "3 km/hr"

Q:
A boat running downstreams covers a distance of 30 kms in 2 hours. While coming back the boat takes 6 hours to cover the same distance. If the speed of the current is half that of the boat, what is the speed of that boat in kmph?
1187 0

Answer : 3. "10"

Q:
A man can row 30 km downstream and return in a total of 8 hours. If the speed of the boat in still water is four times the speed of the current, then the speed of the current is:
1465 0

Answer : 2. "2 km/hr "

Q:
A man can row $$7{1\over 2}km/h$$ in still water. If a river running at 1.5 km an hour, it takes him 50 minutes to row to a place and back, how far off is the place?
717 0

Answer : 1. "3 km"

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Q: A boat takes half time in moving a certain distance downstream than upstream. what is the ratio between the rate in still water and the rate of current? 879 05f238d92e007d6124d78cc0c

Answer : 2. "3 : 1"

Q: A man swims downstream distance of 15 km in 1 hour. If the speed of the current is 5 km/ hr, the time taken by the man to swim the same distance upstream is : 989 05dd6230bc2282c484e4b25d3

Answer : 4. "3 hrs"

Q: Ratio between speed of boat in still water to speed of stream is 7 : 2. If 126 km is travelled downstream in 3.5 hours then find the difference between speed of boat in still water to speed of stream(in kmph)? 1289 05df9b6329e7c624c9bfe82fd

Answer : 4. "20"

Q: A motorboat can travel at 10 km/hr. in still water it travelled 91 km downstream in a river and then returned taking at together 20 hours. Find the rate of flow of the river 739 05f23912be007d6124d78df39

Answer : 3. "3 km/hr"

Q: A boat running downstreams covers a distance of 30 kms in 2 hours. While coming back the boat takes 6 hours to cover the same distance. If the speed of the current is half that of the boat, what is the speed of that boat in kmph? 1187 05da3fe99d691092704739eeb

Answer : 3. "10"

Q: A man can row 30 km downstream and return in a total of 8 hours. If the speed of the boat in still water is four times the speed of the current, then the speed of the current is: 1465 05dd62400c2282c484e4b29dc

Answer : 2. "2 km/hr "

Q: A man can row $$7{1\over 2}km/h$$ in still water. If a river running at 1.5 km an hour, it takes him 50 minutes to row to a place and back, how far off is the place? 717 05f239310e3005114abcad6f1

Answer : 1. "3 km"

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Q:
A boat takes half time in moving a certain distance downstream than upstream. what is the ratio between the rate in still water and the rate of current?
879 0

Q:
A man swims downstream distance of 15 km in 1 hour. If the speed of the current is 5 km/ hr, the time taken by the man to swim the same distance upstream is :
989 0

Q:
Ratio between speed of boat in still water to speed of stream is 7 : 2. If 126 km is travelled downstream in 3.5 hours then find the difference between speed of boat in still water to speed of stream(in kmph)?
1289 0

Q:
A motorboat can travel at 10 km/hr. in still water it travelled 91 km downstream in a river and then returned taking at together 20 hours. Find the rate of flow of the river
739 0

Q:
A boat running downstreams covers a distance of 30 kms in 2 hours. While coming back the boat takes 6 hours to cover the same distance. If the speed of the current is half that of the boat, what is the speed of that boat in kmph?
1187 0

Q:
A man can row 30 km downstream and return in a total of 8 hours. If the speed of the boat in still water is four times the speed of the current, then the speed of the current is:
1465 0

Q:
A man can row $$7{1\over 2}km/h$$ in still water. If a river running at 1.5 km an hour, it takes him 50 minutes to row to a place and back, how far off is the place?
717 0