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Quantitative Aptitude

BOATS AND STREAMS MCQs

Total Questions : 948 | Page 17 of 95 pages
Question 161.  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
Question 162.  a boat can travel with a speed of 13 km/hr in still water. if the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.
  1.    hours
  2.    3 hours
  3.    4 hours
  4.    5 hours
 Discuss Question
Answer: Option C. -> 4 hours
Explanation :
Question 163.  a man can row his boat with the stream at 6 km/h and against the stream in 4 km/h. the man's rate is?
  1.    3
  2.    7.5
  3.     2.25
  4.    1.5
 Discuss Question
Answer: Option D. -> 1.5
Explanation :
Question 164.  a boat goes 100 km downstream in 10 hours, and 75 m upstream in 15 hours. the speed of the stream is?
  1.    7 km/h
  2.    5 km/h
  3.    3 km/h
  4.    2 (1/2) km/h
 Discuss Question
Answer: Option D. -> 2 (1/2) km/h
Explanation :
Question 165.  a man can row with a speed of 15 kmph in still water. if the stream flows at 5 kmph, then the speed in downstream is?
  1.    10 kmph
  2.    5 kmph
  3.    20 kmph
  4.    22 kmph
 Discuss Question
Answer: Option C. -> 20 kmph
Explanation :
Question 166.  a person can swim in still water at 4 km/h. if the speed of water 2 km/h, how many hours will the man take to swim back against the current for 6km?
  1.    3
  2.    4
  3.    4 (1/2)
  4.    Insufficient data
 Discuss Question
Answer: Option A. -> 3
Explanation :
Question 167.  a man can row upstream at 25 kmph and downstream at 35 kmph, and then find the speed of the man in still water?
  1.    60 kmph
  2.    10 kmph
  3.    30 kmph
  4.    5 kmph
 Discuss Question
Answer: Option C. -> 30 kmph
Explanation :
Question 168.  a man can row with a speed of 15 kmph in still water. if the stream flows at 5 kmph, then the speed in downstream is?
  1.    10 kmph
  2.    5 kmph
  3.    20 kmph
  4.    22 kmph
 Discuss Question
Answer: Option C. -> 20 kmph
Explanation :
Question 169.  a man can row 6 kmph in still water. when the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. what is the total distance traveled by the man?
  1.    6.24 km
  2.    6 km
  3.    5.76 km
  4.    5.66 km
 Discuss Question
Answer: Option C. -> 5.76 km
Explanation :
Question 170.  the current of a stream runs at the rate of 4 kmph. a boat goes 6 km and back to the starting point in 2 hours, then find the speed of the boat in still water?
  1.    10 kmph
  2.    10 kmph
  3.    8 kmph
  4.    12 kmph
 Discuss Question
Answer: Option C. -> 8 kmph
Explanation :

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