Question

You are attempting to estimate the number of protester marching through the citystreet. You station yourself at the beginning of the protest march. You count 57protesters within the first 2.1 minutes. Finally, after 12.2 minutes all of the protestershave passed you by. What would be a good estimate for the number of protesters giventhis information?

Answer 1

If after the first 2.1 minutes you count 57 protesters, we can say that after 12.2 minute we would count

$57\cdot\frac{12.2}{2.1}=331.14\approx331\text{ protesters}$