Answer:10.63%.
Step-by-step explanation:
Porosity is the ratio of the volume of voids to the total volume of the rock, expressed as a percentage.
Given:
Total volume of the rock = 254 cubic inches
Volume of voids = 27 cubic inches
To find the porosity, we divide the volume of voids by the total volume of the rock and then multiply by 100 to express it as a percentage:
Porosity
=
(
Volume of voids
Total volume of the rock
)
×
100
Porosity=(
Total volume of the rock
Volume of voids
)×100
Porosity
=
(
27
254
)
×
100
Porosity=(
254
27
)×100
Porosity
=
(
27
254
)
×
100
Porosity=(
254
27
)×100
Porosity
≈
10.63
%
Porosity≈10.63%
So, the porosity of the rock is approximately
10.63
%
10.63%.
