Question

The pulse rate of a person is 15 beats in 10 seconds. At this rate, what will be pulse rate of the person per minute? 1) 90 beats per minute 2) 100 beats per minute 3) 150 beats per minute 4) Data insufficient

Answer 1

Answer

Find out the  what will be pulse rate of the person per minute .

To prove

As given

The pulse rate of a person is 15 beats in 10 seconds.

$The\ pulse\ rate\ of\ a\ person\ is\ \frac{15}{10}\ beats\ in\ 1second .$

$\frac{15}{10} beats = 1second$

The relationship between minute and second.

$1 second = \frac{1}{60}\ minute$

Now find out the pulse rate of the person per minute .

$\frac{15}{10} beats = \frac{1}{60} mintues$

solving the above

$\frac{15\times60}{10} = 1minute$

90 beats = 1 mintue

Therefore the pulse rate of the person per minute be 90 beats per minute .

Option (1) is correct .

Answer 2

Answer:

Option 1

Step-by-step explanation:

Here it is said that  pulse rate is 15 beats in 10 seconds.

we know that 1 minute = 60 seconds.

So for 60 seconds pulse rate should be multiplied with 6.

ie ,

                 10s -------> 15 beats

so for 60s(10*6)------->15*6 beats = 90 beats