Question

A machine produces $24$ screws in $5$ minutes How long will it take to produce $10,000$ screws

Answer 1

Time taken to produce $24$ screws $=5\text{minutes}$

Time taken to produce $1$ screw $=\frac{5}{24}\text{minutes}$

Therefore,

Time taken to produce $10,000$ screws $=\frac{5}{24}\times 10,000\text{minutes}$

$=\frac{5}{24}\times 10000\times 60\text{seconds}$

$=1,25,000\text{seconds}$

$=2083\text{min.}20\text{sec.}$