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Quantitative Aptitude

BOATS AND STREAMS MCQs

Total Questions : 948 | Page 21 of 95 pages
Question 201.  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 202.  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 203.  a man can row 30 km downstream and 20 km upstream in 4 hours. he can row 45 km downstream and 40 km upstream in 7 hours. find the speed of man in still water?
  1.    15 kmph
  2.    10 kmph
  3.    12 kmph
  4.    12.5 kmph
 Discuss Question
Answer: Option D. -> 12.5 kmph
Explanation :
Question 204.  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 205.  a man can row 30 km downstream and 20 km upstream in 4 hours. he can row 45 km downstream and 40 km upstream in 7 hours. find the speed of man in still water?
  1.    15 kmph
  2.    10 kmph
  3.    12 kmph
  4.    12.5 kmph
 Discuss Question
Answer: Option D. -> 12.5 kmph
Explanation :
Question 206.  a person can row at 9 kmph and still water. he takes 4 1/2 hours to row from a to b and back. what is the distance between a and b if the speed of the stream is 1 kmph?
  1.    32 km
  2.    25 km
  3.    28 km
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Explanation :
Question 207.  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 208.  a man can row 30 km downstream and 20 km upstream in 4 hours. he can row 45 km downstream and 40 km upstream in 7 hours. find the speed of man in still water?
  1.    15 kmph
  2.    10 kmph
  3.    12 kmph
  4.    12.5 kmph
 Discuss Question
Answer: Option D. -> 12.5 kmph
Explanation :
Question 209.  a person can row at 9 kmph and still water. he takes 4 1/2 hours to row from a to b and back. what is the distance between a and b if the speed of the stream is 1 kmph?
  1.    32 km
  2.    25 km
  3.    28 km
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Explanation :
Question 210.  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 :

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