(a(i))[1]
State the colour she is most likely to choose.
(a(ii))[1]
Determine the probability that she chooses a black reel.
(b(i))[3]
Find the area of the white material shown in the diagram.
(b(ii))[2]
Work out the length of ribbon used.
(b(iii))[2]
Calculate how much change she gets from a $20$ note.