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?

• 1
  $$ {1\over 9}$$
• 2
  $$ {2\over 9}$$
• 3
  $$ {7\over 9}$$
• 4
  $$ {8\over 9}$$