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1. |
What part of a ditch 48m long 16.5 broad and 4m deep can be filled by the earth got by digging a cylindrical tunnel of diameter 4m and length 56m? |
A. | 1/9 |
B. | 2/9 |
C. | 7/9 |
D. | 8/9 |
Answer» C. 7/9 | |