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Unit Conversion: Crossing Paths

SATMAT-0Z1ZSL

It takes Rex $20$ minutes to drive from his house to his friend Mark's house, $12$ miles away. It takes Mark $24$ minutes to drive from his house to Rex's house.

If they leave their houses at the same time, how long will it take before they pass each other on the road?

A

$10\text{ minutes}$

B

$11.1\text{ minutes}$

C

$12\text{ minutes}$

D

$10.9\text{ minutes}$