1.

Q: How much parts of the pits, which are 48 meters long, 16.5 meters wide and 4 meters deep, can be filled in the soil, which is obtained by cylindrical tunnel of 4 meters diameter and 56 meters long?

A. $$ {1\over 9}$$
B. $$ {2\over 9}$$
C. $$ {7\over 9}$$
D. $$ {8\over 9}$$
Answer» C. $$ {7\over 9}$$


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