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Quantitative Aptitude

BOATS AND STREAMS MCQs

Total Questions : 948 | Page 15 of 95 pages
Question 141.  a man can row upstream at 7 kmph and downstream at 10kmph. find man's rate in still water and the rate of current.
  1.    1 kmph
  2.    1.5 kmph
  3.    2 kmph
  4.    2.5kmph
 Discuss Question
Answer: Option B. -> 1.5 kmph
Explanation :
Question 142.  a boat takes 38 hours for travelling downstream from point a to point b and coming back to point c midway between a and b. if the velocity of the stream is 4 kmph and the speed of the boat in still wa
  1.    240 km
  2.    120 km
  3.    360 km
  4.    180 km
 Discuss Question
Answer: Option C. -> 360 km
Explanation :
Question 143.  a boat takes 38 hours for travelling downstream from point a to point b and coming back to point c midway between a and b. if the velocity of the stream is 4 kmph and the speed of the boat in still wa
  1.    240 km
  2.    120 km
  3.    360 km
  4.    180 km
 Discuss Question
Answer: Option C. -> 360 km
Explanation :
Question 144.  a man can row upstream at 7 kmph and downstream at 10kmph. find man's rate in still water and the rate of current.
  1.    1 kmph
  2.    1.5 kmph
  3.    2 kmph
  4.    2.5kmph
 Discuss Question
Answer: Option B. -> 1.5 kmph
Explanation :
Question 145.  a man can row upstream at 7 kmph and downstream at 10kmph. find man's rate in still water and the rate of current.
  1.    1 kmph
  2.    1.5 kmph
  3.    2 kmph
  4.    2.5kmph
 Discuss Question
Answer: Option B. -> 1.5 kmph
Explanation :
Question 146.  a man can row 40km upstream and 55km downstream in 13 hours also, he can row 30km upstream and 44km downstream in 10 hours. find the speed of the man in still water and the speed of the current.
  1.    4, 3
  2.    5, 4
  3.    8, 3
  4.    9, 5
 Discuss Question
Answer: Option C. -> 8, 3
Explanation :
Question 147.  if a man rows at the rate of 5 kmph in still water and his rate against the current is 3 kmph, then the man's rate along the current is:
  1.    5 kmph
  2.    7 kmph
  3.    12 kmph
  4.    8 kmph
 Discuss Question
Answer: Option B. -> 7 kmph
Explanation :
Question 148.  a boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. if the speed of the boat in still water is 10 mph, the speed of the stream is:
  1.    4 mph
  2.    2.5 mph
  3.    3 mph 
  4.    2 mph
 Discuss Question
Answer: Option D. -> 2 mph
Explanation :
Question 149.  a man can row 8 km/hr in still water. if the river is running at 3 km/hr, it takes 3 hours more in upstream than to go downstream for the same distance. how far is the place?
  1.    32.5 km
  2.    25 km
  3.    27.5 km
  4.    22.5 km
 Discuss Question
Answer: Option C. -> 27.5 km
Explanation :
Question 150.  a man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. the ratio of the speed of the boat (in still water) and the stream is:
  1.    3 : 1
  2.    1 : 3
  3.    1 : 2
  4.    2 : 1
 Discuss Question
Answer: Option A. -> 3 : 1
Explanation :

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