1.

A cylindrical tank of diameter 35 cm is full of water. If 11 litres of water is drawn off, the water level in the tank will drop by :

A. $10\frac{1}{2}{\text{ cm}}$$
B. $11\frac{3}{7}{\text{ cm}}$$
C. $12\frac{6}{7}{\text{ cm}}$$
D. $14{\text{ cm}}$$
Answer» C. $12\frac{6}{7}{\text{ cm}}$$


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