Point C should have 1/3a and 2/3 b
Look at the diagram and you will find 6 triangles that make up OA and OB.
so 1/3 into 6 with give you two. You go two triangles up from Origin in the direction of OA.
Now you multiply 2/3 into 6 which will give you 4. Go 4 triangles in the direction of OB and you will get point C.
This is how i did it.
Apply these methods for part ii and you will get the answer.
and for part iii . subtract OB from OE to get the answer.
