Distance and Speed Problems

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swerve: Legendary Member; Posts: 2535; Joined: Sun Oct 29, 2017 2:04 pmFollowed by: 6 members

by swerve » Mon May 04, 2026 7:02 am

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While on a straight road, Car C and Car D are traveling at different constant rates. If car C is now $10$ miles behind Car D, how many minutes from now will Car C be $20$ miles behind Car D?

1. Car C is traveling at $30$ miles per hour and Car D is traveling at $40$ miles per hour

2. Thirty minutes ago, Car C was $5$ miles behind Car D

The OA is D

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Source: Beat The GMAT — Data Sufficiency | Mon May 04, 2026 7:02 am

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