The answer is the second choice
The answer is B:40cm because if you times 5x4 then times 2 you get 40cm
Nope! If they were proportional, one would be able to be reduced to the other.
It's like the (however clichéd) example of pie slices! If you cut two pies into 8 and 20 pieces, three pieces of the pie sliced into eight pieces will not be the same as seven pieces of the pie sliced into twenty!
Patrick must be back by 1:26