Question

A cylindrical saline bottle is injected into the vein of a patient. The saline bottle has radius 7 cm and height 20 cm. If the saline is released at a rate of 10 ${cm}^3$ per second, in approximately how many hours does the saline bottle gets emptied?

Answer 1

Given r = 7cm and h = 20 cm.

Volume of the saline bottle = $\pi$$r^2$ h = 3080 ${cm}^3$

No. of minutes needed= $\frac{3080}{10}$ = 308 minutes = approx. 5 hours