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Quantitative Aptitude

BOATS AND STREAMS MCQs

Total Questions : 948 | Page 7 of 95 pages
Question 61.  the speed at which a man can row a boat in still water is 15 kmph. if he rows downstream, where the speed of current is 3 kmph, what time will he take to cover 60 metres?
  1.    10 seconds
  2.    15 seconds
  3.    20 seconds
  4.    12 seconds
 Discuss Question
Answer: Option D. -> 12 seconds
Explanation :
Question 62.  the speed at which a man can row a boat in still water is 15 kmph. if he rows downstream, where the speed of current is 3 kmph, what time will he take to cover 60 metres?
  1.    10 seconds
  2.    15 seconds
  3.    20 seconds
  4.    12 seconds
 Discuss Question
Answer: Option D. -> 12 seconds
Explanation :
Question 63.  a man rows to a place 48 km distance and back in 14 hours. he finds that he can row 4 km with the stream in the same time 3 km against the stream. the rate off the stream is?
  1.    1 kmph
  2.    2 kmph
  3.    1.5 kmph
  4.    None
 Discuss Question
Answer: Option A. -> 1 kmph
Explanation :
Question 64.  in a stream running at 2 kmph, a motor boat goes 10 km upstream and back again to the starting point in 55 minutes. find the speed of motor boat in still water?
  1.    18 kmph
  2.    22 kmph
  3.    16 kmph
  4.    20 kmph
 Discuss Question
Answer: Option B. -> 22 kmph
Explanation :
Question 65.  a man can row at 5 km/hr in still water. if the velocity of current is 1 km/hr and it takes him 1 hour to row to a place and come back, how far is the place?
  1.    2 km
  2.    2.4 km
  3.    2.4 km
  4.    4 km
 Discuss Question
Answer: Option B. -> 2.4 km
Explanation :
Question 66.  a boat man goes 4 km against the current of the stream in 1hour and goes 2 km along the current in 5 minutes. how long will it take to go 21 km in stationary water?
  1.    1 Hour
  2.    1 Hour 15 Minutes
  3.    1 Hour 30 Minutes
  4.    1 Horr 45 Minutes
 Discuss Question
Answer: Option B. -> 1 Hour 15 Minutes
Explanation :
Question 67.  a man can row 8 kmph in still water. if the velocity of the current is 2 kmph and it takes him 2 hours to row to a place and come back. how far is the place?
  1.    6.5 km
  2.    7.5 km
  3.    7.4 km
  4.    6.4 km
 Discuss Question
Answer: Option B. -> 7.5 km
Explanation :
Question 68.  in an hour a boat goes 10 km along the stream and 4 km against the stream. the speed of the boat in still water (in kmph) is:
  1.    7 Kmph
  2.    8 Kmph
  3.    6 Kmph
  4.    10 Kmph
 Discuss Question
Answer: Option A. -> 7 Kmph
Explanation :
Question 69.  a man can row at 5 km/hr in still water. if the velocity of current is 1 km/hr and it takes him 1 hour to row to a place and come back, how far is the place?
  1.    2 km
  2.    2.4 km
  3.    2.4 km
  4.    4 km
 Discuss Question
Answer: Option B. -> 2.4 km
Explanation :
Question 70.  a man can row 8 kmph in still water. if the velocity of the current is 2 kmph and it takes him 2 hours to row to a place and come back. how far is the place?
  1.    6.5 km
  2.    7.5 km
  3.    7.4 km
  4.    6.4 km
 Discuss Question
Answer: Option B. -> 7.5 km
Explanation :

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