I need help with the vector addition, I tried many times but always got the wrong answer, Thank you in advance.
The problem as follow:
Select an answer for each... below.
For an observer on shore, the speed of the boat for F is... for D
Time to row across for C is... for J
Time to row across for K is... for B
The distance traveled in crossing for J is... for B
Time to row across for J is... for B
And the blank should be filled in with equal to, larger than, or less than.

The follow link is a similar picture except in my pic, the A is river velocity, and following from the top to the bottom is J, C, D, F, H, K, B.

A river is to be crossed by a boy using a row boat. Ti ... More » | Chegg.com (http://www.chegg.com/homework-help/questions-and-answers/river-crossed-boy-using-row-boat-time-row-c--b-time-row-b--f-distance-traveled-crossing-c--q2556057?frbt=1)

Here are some wrong answer I did. I don't know which one I got wrong:
1 Incorrect.
Less than
Less than
Less than
Equal to
Less than
2 Incorrect.
Greater than
Less than
Less than
Greater than
Less than
3 Incorrect.
Greater than
Less than
Less than
Greater than
Greater than
4 Incorrect.
Equal to
Less than
Less than
Greater than
Greater than
5 Incorrect.
Greater than
Less than
Greater than
Equal to
Greater than