if you count 12 pulse beats in 10 s what is the pulse rate in beats per minute

Marie/Abbey -- please keep the same name for your posts.

I'll be glad to check your answer.

72 pulse beats per a minute

Right! :-)

thank you so much for helping me

You're very welcome.

To find the pulse rate in beats per minute, you need to convert the time you measured the pulse to minutes and then calculate the pulse rate.

Step 1: Convert the given time from seconds to minutes.
Since there are 60 seconds in a minute, you can convert the time as follows:
10 s ÷ 60 s/minute = 0.1667 minutes

Step 2: Calculate the pulse rate.
To determine the pulse rate per minute, you can divide the number of pulse beats counted by the time in minutes:
Pulse rate = Number of pulse beats ÷ Time in minutes
Pulse rate = 12 beats ÷ 0.1667 minutes ≈ 71.99 beats per minute

Rounding it to the nearest whole number, the pulse rate is approximately 72 beats per minute.