Question

Being 250 meters apart, two puppies started running towards each other at the same time. The first puppy ran 1.5 meter per second, while the second one ran 2.5 meters per second. What was the distance between them in half a minute?

Answer 1

The distance between them in half a minute was 130 m

Explanation:

Firstly, we will find distance traveled by first and second puppy and then we can find distance between them

First Puppy:

Speed =1.5 m/sec

time =0.5 min =30 second

we know that

distance = speed*time

`d_1=1.5* 30 m`

`d_1=45m`

Second Puppy:

Speed =2.5 m/sec

time =0.5 min =30 second

we know that

distance = speed*time

`d_2=2.5* 30 m`

`d_2=75m`

now, we can find distance between them

so,

The distance between them is

`=250-(d_1+d_2)`

`=250-(45+75)`

`=130m`

So,

the distance between them in half a minute was 130 m