1.

The ratio of curved surface area and volume of a cylinder is 1 : 7. The ratio of total surface area and volume is 187 : 770. What is the respective ratio of its base radius and height?

A. 0.21388888888889
B. 0.17291666666667
C. 0.12986111111111
D. 0.29861111111111
Answer» E.


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