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Math·Problem-Solving and Data Analysis·Percentages
easy
Mineral composition
TextureGraniticAndesiticBasaltic
Coarse-grained322242
Fine-grained191631
The table shows the distribution of the 162 igneous rocks in a certain earth science laboratory by mineral composition and texture. What fraction of the laboratory’s granitic rocks are coarse-grained?
A
B
C
D