If the liquid limit of soil is 25%, plastic limit is 15% and flow index is 12.5%, then its toughness index is:

If the liquid limit of soil is 25%, plastic limit is 15% and flow inde

1.	If the liquid limit of soil is 25%, plastic limit is 15% and flow index is 12.5%, then its toughness index is:
A.	50%
B.	60%
C.	70%
D.	80%
Answer» E.

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If the liquid limit of soil is 25%, plastic limit is 15% and flow index is 12.5%, then its toughness index is:

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