Question

A runner is jogging at a steady 1 km/hr.
When the runner is 0.88 km from the finish
line a bird begins flying from the runner to
the finish line at 3 km/hr (3 times as fast
as the runner). When the bird reaches the
finish line, it turns around and flies back to
the runner. After this first encounter, the bird
then turns around and flies from the runner
back to the finish line, turns around again and
flies back to the runner. The bird repeats the
back and forth trips until the runner reaches
the finish line.

How far did the bird travel?

Answer 1

Oh God, this question is so common!

Answer 2

lol I still don't understand it

Answer 3

Hint: find how long it takes the runner to finish the race.

The bird will be flying for that same amount of time... at 3km/hr ;)

Answer 4

@RavenLynette

Answer 5

See that seems very helpful but Idk how to do it still ._.

Answer 6

At 1km/hr, how long does it take to run 0.88km?

use distance = speed * time for the runner

then use it again on the bird!

Answer 7

well .88 divided by 1 is just .88.... so I multiply that by 3?

Answer 8

Yep. It takes 0.88 hours, so how far will the bird fly in 0.88 hours?

Answer 9

2.64 km is my best guess

Answer 10

that's pretty exact for a guess :P

Answer 11

Haha why thank you