Question:
A skirt that is 
cm long has a hem of 
cm. How long will the skirt be if the hem is let down?
Solution:
From the question it is given that,
Length of the skirt =
cm = 287/8 cm
Dimension of hem = 
cm = 25/8 cm
Length of skirt, if hem is let down = ((287/8) + (25/8)) cm
= 312/8 cm
= 39 cm