If change in voids ratio is 0.18 and change in effective pressure is 100KN/m2, then the coefficient of compressibility is ______

If change in voids ratio is 0.18 and change in effective pressure is 1

1.	If change in voids ratio is 0.18 and change in effective pressure is 100KN/m², then the coefficient of compressibility is ______
A.	2.5 10<sup>-3</sup> m<sup>2</sup>/kN
B.	2 10<sup>-3</sup> m<sup>2</sup>/kN
C.	9 10<sup>-3</sup> m<sup>2</sup>/kN
D.	9.5 10<sup>-3</sup> m<sup>2</sup>/kN
Answer» C. 9 10<sup>-3</sup> m<sup>2</sup>/kN

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If change in voids ratio is 0.18 and change in effective pressure is 100KN/m2, then the coefficient of compressibility is ______

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If change in voids ratio is 0.18 and change in effective pressure is 100KN/m², then the coefficient of compressibility is ______