Question

52. 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.
(A) 2 hours
(B) 3 hours
(C) 4 hours
(D) 5 hours​

Answer 1

Step-by-step explanation:

2 hours is the answer hope you understood mark me as brilliest

Answer 2

Answer:

C

Step-by-step explanation:

if speed of boat is 13 km/hr and speed of stream is 4 km/hr,

then total speed = 13+4 = 17km/hr

Now let the time taken be x

Now we know that distance = speed × time

or 68 = 17x

or x = 4 hrs (Ans)