An earthworm of length 15cm is crawling along at 2cm/2.Ana ant overtakes the worm in 5 seconds.How fast is the any walking/

Answer 1

I am assuming the speed of the earthworm is 2 cm per second.

The ant is at the same position as the tail of the earthworm when the clock starts.

Let x be the speed of the ant.

In 5 seconds, the tail of the earthworm is 10 cm from the starting position.

Therefore the ant travels 10 cm + 15 cm = 25 cm in 5 seconds.

So the speed of the ant is 25 cm/5 sec = 5 cm per second.

Here is a table the verifies the answer

Time in seconds Head of the earthworm Ant

0 15 0

1 17 5

2 19 10

3 21 15

4 23 20

5 25 25