5 out of 2250 parts of the earth is sulphur. What is the percentage of sulphur in the earth?
a. 11/50
b. 2/9
c. 1/45
d. 1/9
5 out of 2250 parts of the earth is sulphur. What is the percentage of sulphur in the earth?
a. 11/50
b. 2/9
c. 1/45
d. 1/9

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