Kinematics Question 386

Question: A boat takes 2 hours to travel 8 km and back in Still Water Lake. With water velocity of 4kmh1 , the time taken for going upstream of 8 km and coming back it’s

Options:

A) 160 minutes

B) 80 minutes

C) 100 minutes

D) 120 minutes

Show Answer

Answer:

Correct Answer: A

Solution:

Velocity of boat = 8+82=8kmh1 Velocity of water =4km1

t=884+88+4=83h=160 minute



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