Nearly every GMAT distance rate and work rate problem will go more quickly if you remember to use the rate equations, D = R x T and W = R x T. Please contact me if you would like me to create a video explaining how to use the rate equations. Note that there is much discussion of the rate equations, including a number of examples, in the parts of the Veritas Prep GMAT lessons that discuss distance rate and work rate problems:

### Veritas Prep GMAT lesson sections

- Lesson 11: Word Problems Skillbuilder pages 33-46
- Lesson 11: Word Problems Lesson pages 119-124
- Lesson 11: Word Problems Lesson pages 127-130

Here are lists of questions that you can use to practice using the rate equations, D = R x T and W = R x T, so that you can answer questions more efficiently and increase your GMAT score:

### Official Guide GMAT practice questions

**GMAT Official Guide 2019**: 82, 88, 110, 118, 130, 133, 199, 251**GMAT Official Guide 2018**: 69, 76, 102, 113, 129, 132, 199**GMAT Official Guide 2017**: 65, 85, 96, 111, 114, 195

### List of questions on this topic posted on Yin Tutoring:

- Al and Ben are drivers for SD Trucking Company. One snowy day, Ben…-
- Source: OG2019 #82, OG2018 #69
- Difficulty: 700-Level

- Working simultaneously at their respective constant rates, Machines A and B…-
- Source: OG2019 #133, OG2018 #132, OG2017 #114
- Difficulty: 600-700 Level

- Machine R and machine S work at their respective constant rates-
- Source: OG2019 #251
- Difficulty: Sub-600 Level

- Three printing presses, R, S, and T, working together at their…-
- Source: OG2019 #118, OG2019 #113, OG2017 #96
- Difficulty: Sub-600 Level