Question

Manuel's heart beats 9 times per 10 seconds while he is resting. How many times would Manuel's heart beat during 3 minutes of rest?

Answer 1

The answer is 162

Explanation:

For every 60 seconds Manuel's heart will beat 9 times. This means that every minute his heart will beat 54 times. Since he is resting for three minutes we can say that 54x3=162