consolidation test, an increase of 100 kPa in the vertical pressure was applied to a saturated clay sample initially 2.5 cm thick.  thickness of the sample reduced to 2.46 cm after 24 hours.  sample was then relieved of pressure and allowed to take up water.  final thickness was 2.465 cm and the moisture content was 30%. Assuming  sample was saturated throughout the test, calculate the following.

a) the initial void ratio (Take Gs = 2.68)

b) the void ratio after consolidation

c) the void ratio after expansion