Take FREE!! Online Cocubes Mock Test to Crack various Companies Written Exams.
Get Off-Campus Placement Jobs Info !!!
Take 30+ FREE!! Online Arithmetic Aptitude Mock test to crack any Exams.

Quantitative Aptitude :: Boats and Streams - Discussion

Home > Quantitative Aptitude > Boats and Streams > MCQs Questions Discussion

2 / 38

Choose the correct option.

The current of a stream runs at the rate of 4 kmph. A boat goes 6 km and back to the starting point in 2 hours, then find the speed of the boat in still water?

A10 kmph

B21 kmph

C8 kmph

D12 kmph

Answer: Option (Login/Signup)

Show Explanation

d1/s1 d2/s2 = total time and d1=d2=6km
speed upstream s1= x-4
speed downstream s2= x+4
where x= speed of boat in still water

6/ (x-4) + 6/(x+4)=2

Solving the above equation we get x = 8, -2

So x=8kmph is the correct answer.

Asked In ::

Post Your Answer Here:     

Rate This: +0 -1 +

Report Error

Please Login First Click Here