From two opposite banks of the pond, two swimmers swam towards each other at the same time and met after 10 minutes.

From two opposite banks of the pond, two swimmers swam towards each other at the same time and met after 10 minutes. The first swam until the meeting with a speed of 8 m / min., The second – with a speed of 12 m / min. Find the width of the pond.

The first step is to calculate what distance the first swimmer swam:
1) 8 m / min * 10 min = 80 meters the first swimmer swam.
The second step is to calculate how long the second swimmer has swum:
2) 12 m / min * 10 min = 120 meters the second swimmer swam.
The third step is to calculate the width of the pond:
3) 80 m + 120 m = 200 meters.
Answer: the width of the pond is 200 meters.