Question

Heart beat of a person beats 72 times per minute find the number of heart beat in 3 hours​

Answer 1

Answer:

12960 heart beats

Explanation:

1 hour = 60 mins

3 hours = 3 x 60 = 180 mins

Heart beat in 180 mins = 72 x 180 = 12960

Answer 2

Answer:

12960 times/ 3 hour.

Explanation:

For a minute it is 72 times, therefore, for an hour - 72×60=4320.

Then for 3 hours, 4320×3=12960.

Simple.