A cylindrical tank has its internal radius 7 m and its height 10 m.  If the cylinder is 40% fill with water, then what is the volume of the cylinder filled with water?

1540 m3 924 m3 780 m3 616 m3

616 m3

Volume of cylinder = \(\pi \)r2h = \(\frac{22}{7}\) × 7 × 7 × 10 = 1540 m3 40% of cylinder = 40% of 1540 = \(\frac{2}{5}\) × 1540 = 616 m3