Finding strain of a marble column with stress and Young's modulus

[zyphriss2]

A marble column of cross-sectional area 1.5 m^2 supports a mass of 2.5×10^4 kg.



What is the stress within the column?
What is the strain?

I have already found the stress in the column by taking (25000kgx9.8 m/s^2)/1.5m^2
The problem is i have no clue how to find the strain given this information. I know strain is delta Y/ original length, or strain/youngs modulus.

 

[rock.freak667]

Without any information regarding its length or Young's modulus, you can't find the strain.

 

[zyphriss2]

This was all that was given to me in the problem...does anyone have any clue.