how many times does a heart beat in quarter of a minuite?

Answer 1

A normal pulse rate for a healthy adult, while resting, can range from 60 to 100 beats per minute (BPM). During sleep, this can drop to as low as 40 BPM; during strenuous exercise, it can rise as high as 200–220 BPM. Generally, pulse rates are higher in younger persons. A resting heart rate for an infant is as high as or higher than an adult's pulse rate during strenuous exercise. (Wikipedia)
For resting heart rate:
* newborn infants; 100 to 160 beats per minute
* children 1 to 10 years; 70 to 120 beats per minute
* children over 10 and adults; 60 to 100 beats per minute
* well-trained athletes; 40 to 60 beats per minute (MedlinePlus).

Answer 2

15-20 times

Answer 3

At rest in an average adult in a minute the heart would beat 70 - 75 so in 15 seconds it would beat 17.5 - 18.75 times. In children it can be between 20 - 30 depending on age. Any activity increases the rate so it depends then on age and fitness levels as to how high it can be.

Answer 4

Between 15 and 25 in a quarter of a minute.
"Normal" heart rate is classified as 60-100 beats per minute.

Answer 5

Since the average heart rate while sitting is around 78, this would equate to 78/4 or roughly speaking 20

Answer 6

18-20

Answer 7

Depends how fit, old, active you are. Normal is around 70-75 beats per min, very fit is around 60 beats per min. Over 80 is not good.

Answer 8

between 15 and 30 depending on what im doing.

Answer 9

obviosly it depends on how activ you are if your relaxing approximately 15 to 20

Answer 10

depends on what I am doing at the time