w/L = 5.5/7.5 There are no decimals in any answer except b and it looks it is wrong. The reason is that the numerator is divided by 2 to give 5.5/2 = 2.75 and the denominator is multiplied by 2 to give 15. So B is out.
C
C: is pretty close. The problem is that the ratio is stated as width to length. C does do the same things to top and bottom (multiplies both of them by 2) but this answer is upside down of right.
I don't know exactly what was done with A but it isn't right.
