Question

Goldie Goldfish, a speed swimmer, loves to race around the park's pond, which is 0.5 miles around. If she can swim 20 laps around the track in 2 hours, what is har average speed?

Answer 1

The average speed is 5 miles per hour

Solution:

Given that, swimmer, loves to race around the park's pond

The park is 0.5 miles around

She can swim 20 laps around the track in 2 hours

To find: Average speed

From given statement,

Each lap is 0.5 miles

Thus total distance covered in 20 laps is given by:

Total distance = 0.5 x 20 = 10 miles

Given that she can swim 20 laps around the track in 2 hours

Total time taken = 2 hours

The Average speed is given by formula:

`Average\ Speed = \frac{\text{ Total distance}}{\text{total time taken}}`

`Average\ Speed = (10)/(2) = 5`

Thus average speed is 5 miles per hour