Lakshya Education MCQs

Question:  speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. a man rows to a place at a distance of 105 km and comes back to the starting point. the total time taken by him is:
Options:
A.16 hours
B.18 hours
C.20 hours
D.24 hours
Answer: Option D
Explanation :

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More Questions on This Topic :

Question 1.  a boat covers a certain distance downstream in 1 hour, while it comes back in 1 hours. if the speed of the stream be 3 kmph, what is the speed of the boat in still water?
  1.    12 kmph
  2.    13 kmph
  3.    14 kmph
  4.    15 kmph
Answer: Option D
Explanation :
Question 2.  the speed of a boat in still water in 15 km/hr and the rate of current is 3 km/hr. the distance travelled downstream in 12 minutes is:
  1.    1.2 km
  2.    1.8 km
  3.    2.4 km
  4.    3.6 km
Answer: Option D
Explanation :
Question 3.  the speed of a boat in still water in 15 km/hr and the rate of current is 3 km/hr. the distance travelled downstream in 12 minutes is:
  1.    1.2 km
  2.    1.8 km
  3.    2.4 km
  4.    3.6 km
Answer: Option D
Explanation :
Question 4.  a man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. the man's speed against the current is:
  1.    8.5 km/hr
  2.    9 km/hr
  3.    10 km/hr
  4.    12.5 km/hr
Answer: Option C
Explanation :
Question 5.  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
Answer: Option C
Explanation :
Question 6.  a man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. the man's speed against the current is:
  1.    8.5 km/hr
  2.    9 km/hr
  3.    10 km/hr
  4.    12.5 km/hr
Answer: Option C
Explanation :

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