EM-2077

Area and volume of similar figures

E Math · Secondary 4 · Hard · Area and volume of similar figures

A container is formed by stacking a small cylinder on top of a larger cylinder. The two cylinders are geometrically similar. The radius of the smaller cylinder is 2 cm and the radius of the larger cylinder is 6 cm. It takes 45 s to fill the whole container. How long does it take to fill only the larger cylinder?

$1.6\text{ s}$
$43.4\text{ s}$
$48.0\text{ s}$
$1.7\text{ s}$

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