The curved surface area of a cylinder is 264$m^2$  and its volume is 924 $m^3$ . The ratio of its diameter to its height is

Volume $=924$

$\frac{\pi r^{2}h}{2\pi rh}=\frac{924}{264}$

$\frac{r}{2}=\frac{924}{264}$

$r=\frac{924}{264}\times 2$

$r=7m$

$2\pi rh=264$

$h=\frac{264}{2\times \frac{22}{7}\times 7}$

$h=6cm$

Ratio $\left(d:h\right)$

$=14:6$

$=7:3$