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Quantitative Aptitude

BOATS AND STREAMS MCQs

Total Questions : 948 | Page 8 of 95 pages
Question 71.  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 72.  a boat can travel 8 km an hour in still water, but it takes thrice as much time for travelling the same distance against the current. the speed of the current (in kmph) is:
  1.    29
  2.    21
  3.    41
  4.    30
 Discuss Question
Answer: Option C. -> 41
Explanation :
Question 73.  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 74.  a man can row three-quarters of a kilometre against the stream in 11 minutes and down the stream in 7 minutes. the speed (in km/hr) of the man in still water is
  1.    4
  2.    5
  3.    6
  4.    7
 Discuss Question
Answer: Option B. -> 5
Explanation :
Question 75.  a boat running downstream covers a distance of 16 km in 2 hours, while covering the same distance upstream it takes 4 hours. what is the speed of the boat in still water ?
  1.    3 Km/hr
  2.    4 Km/hr
  3.    5 Km/hr
  4.    6 Km/hr
 Discuss Question
Answer: Option D. -> 6 Km/hr
Explanation :
Question 76.  a man can row three-quarters of a kilometre against the stream in 11 minutes and down the stream in 7 minutes. the speed (in km/hr) of the man in still water is
  1.    4
  2.    5
  3.    6
  4.    7
 Discuss Question
Answer: Option B. -> 5
Explanation :
Question 77.  a person can swim at 15/2 km/hr in stagnant water. in a river with 1.5 km/hr current, the person swims to a certain distance and comes back within 50 minutes. what is the distance between the two poin
  1.    1 km
  2.    2 km
  3.    3 km
  4.    4 km
 Discuss Question
Answer: Option C. -> 3 km
Explanation :
Question 78.  a boat takes 4 hours for travelling downstream from point a to point b and coming back to pint a upstream. if the velocity of the stream is 2 km/hr and the speed of the boat in still water is 4 km/hr.
  1.    6 Km
  2.    7 Km
  3.    9 Km
  4.    8 Km
 Discuss Question
Answer: Option C. -> 9 Km
Explanation :
Question 79.  a boat running downstream covers a distance of 16 km in 2 hours, while covering the same distance upstream it takes 4 hours. what is the speed of the boat in still water ?
  1.    3 Km/hr
  2.    4 Km/hr
  3.    5 Km/hr
  4.    6 Km/hr
 Discuss Question
Answer: Option D. -> 6 Km/hr
Explanation :
Question 80.  a man can row three-quarters of a kilometre against the stream in 11 minutes and down the stream in 7 minutes. the speed (in km/hr) of the man in still water is
  1.    4
  2.    5
  3.    6
  4.    7
 Discuss Question
Answer: Option B. -> 5
Explanation :

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