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Quantitative Aptitude

BOATS AND STREAMS MCQs

Total Questions : 948 | Page 22 of 95 pages
Question 211.  the time taken by a man to row his boat upstream is twice the time taken by him to row the same distance downstream. if the speed of the boat in still water is 42 kmph, find the speed of the stream?
  1.    12 kmph
  2.    13 kmph
  3.    14 kmph
  4.    15 kmph
 Discuss Question
Answer: Option C. -> 14 kmph
Explanation :
Question 212.  a man can row downstream at 18 kmph and upstream at 10 kmph. find the speed of the man in still water and the speed of stream respectively?
  1.    13, 3
  2.    12, 6
  3.    15, 3
  4.    14, 4
 Discuss Question
Answer: Option D. -> 14, 4
Explanation :
Question 213.  a man can row a boat at 20 kmph in still water. if the speed of the stream is 6 kmph, what is the time taken to row a distance of 60 km downstream?
  1.    0/6 hours
  2.    27/2 hours
  3.    30 hours
  4.    30/13 hours
 Discuss Question
Answer: Option D. -> 30/13 hours
Explanation :
Question 214.  a man can row downstream at 18 kmph and upstream at 10 kmph. find the speed of the man in still water and the speed of stream respectively?
  1.    13, 3
  2.    12, 6
  3.    15, 3
  4.    14, 4
 Discuss Question
Answer: Option D. -> 14, 4
Explanation :
Question 215.  a man can row downstream at the rate of 24 kmph and upstream at 7 kmph. find the man’s rate in still water and rate of current?
  1.    15.5 Kmph, 8.5 Kmph
  2.    17 Kmph, 8.5 Kmph
  3.    814 Kmph, 7 Kmph
  4.    None of these
 Discuss Question
Answer: Option A. -> 15.5 Kmph, 8.5 Kmph
Explanation :
Question 216.  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 217.  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 218.  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 219.  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 220.  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 :

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