A boat heads in the direction N35 degree W at a speed of 24

A boat heads in the direction N35 degree W at a speed of 24 knots. The current runs at 6 knots in the direction N18 degree E. Find the resultant speed and direction of the boat.

net speed of boat in north is 24cos(35)+6cos(18)=25.366 knots
net speed of boat in west is 24sin(35)-6sin(18)=11.911 knots
so net speed of boat is resultant of above two=28.02 knots in the direction N25.15degreeW