Question

You jog 2 kilometers in 12 minutes. Your friend jogs 3 kilometers in 16.5 minutes. Who jogs faster? How much sooner will the faster jogger finish a five-kilometer race?​

Answer 1

Answer :

Person 2 jogs faster as compared to person 1.

The time taken by the faster jogger finish a five-kilometer race will be, 27.5 minutes.

Step-by-step explanation :

First we have to calculate the speed of person 1 and 2.

Formula used :

$Speed=\frac{Distance}{Time}$

$\text{Speed of person }1=\frac{Distance}{Time}=\frac{2km}{12min}=0.167km/min$

and,

$\text{Speed of person }2=\frac{Distance}{Time}=\frac{3km}{16.5min}=0.182km/min$

From this we conclude that, person 2 jogs faster as compared to person 1.

Now we have to calculate the time taken by the faster jogger finish a five-kilometer race.

Faster jogger speed = 0.182 km/min

Distance = 5 km

$Speed=\frac{Distance}{Time}$

$0.182km/min=\frac{5km}{Time}$

$Time=27.5min$

Thus, the time taken by the faster jogger finish a five-kilometer race will be, 27.5 minutes.

Answer 2

Answer:

your friend jogs faster

Step-by-step explanation: