Question

In order to determine herpulse rate, June’s nurse counted18 beats in her pulse in 15 seconds. Atthis rate, how many beats would shehave in 60 seconds?

Answer 1

To solve this, we'll use a rule of three:

This way,

$x=\frac{18\cdot60}{15}\Rightarrow x=72$

She would have 72 beats in 60 seconds