Question

An adults heart beats about 2100 times every 30 minutes.A baby beats about 2600 times every 20 minutes. How many more heart beat i 60 minutes than an adults hearts?

Answer 1

Given :

An adults heart beats about 2100 times every 30 minutes.

A baby beats about 2600 times every 20 minutes.

To Find :

How many more heart beat baby have than adult in 60 min .

Solution :

Now , total number of heart beats of adult in 60 min , $T_a=2100\times 2=4200$

Also , total number of heart beats of adult in 60 min , $T_b=2600\times 3=7800$

Difference between them , $7800-4200=3600$ beats .

So , baby have 3600 more heart beats than adult .

Hence , this the required solution .