Question: The speed of a stream is 3 km/h and the speed of a man in still water is 5 km/h. The time taken by the man to swim 26 km downstream is
Options:
A) $ 5\frac{1}{2}h $
B) $ 8\frac{2}{3}h $
C) $ 3\frac{1}{4}h $
D) $ 13h $
Show Answer
Answer:
Correct Answer: C
Solution:
- Speed of stream $ =3km/h $
Speed of man in still water $ =5km/h $
Now, speed of man downstream $ =(3+5)=8km/h $
$ \therefore $ Time taken to travel 26 km downstream
$ =\frac{26}{8}=\frac{13}{4}=3\frac{1}{4}h $