Skip to content
Related Articles

Related Articles

Improve Article
Save Article
Like Article

| | Question 16

  • Last Updated : 17 Sep, 2021

Speed of motorboat in still water is 35 kmph. If the motorboat travels 100 km along the stream in 2 hour 30 min, then the time taken by it to cover the same distance against the stream is
(A) 2 hour 20 min
(B) 2 hour 40 min
(C) 3 hour 10 min
(D) 3 hour 20 min


Answer: (D)

Explanation: The speed of the motorboat in still water is 35 km/hr.
let the speed of the stream = x km/hr
Downstream speed = Distance/time
= 100 / 2.5
= 40 km/hr
Speed of stream = 35 + x = 40
x = 5 km/hr
Upstream speed = 35 – 5 = 30 km/hr
Time taken in upstream = 100/30 = 3 hour 20 min

Quiz of this Question

My Personal Notes arrow_drop_up
Recommended Articles
Page :

Start Your Coding Journey Now!