Well if each round is 3 minutes long, and they have a 1 minute rest period between each round, the answer is 27 minutes.
They box for 21 minutes, and they rest after each round from 1 to 6, and that is why the answer comes out to 27 minutes.
3 minutes
3 minutes per round, 36 minutes
36 minutes total 3 min. per round * 12 rounds = 36 minutes
Each boxing round is 3 minutes, so that's 36 minute of fighting
Each boxing round is 3 minutes, so that would be 36 minutes of fighting.
There are only two fighters in a boxing match.
36 min. of action; but if you count the rest periods and start-end bell-to-bell it is:47 min.
180
10 rounds
A heavyweight boxing match takes 12 rounds of 3 minutes each. This is however overlooked if one boxer falls down and stays down for more than 30 seconds.
six minutes
80 Minutes