Wednesday, August 1, 2012

Mathematical Word Problems - 2 - Measurement

6:27 AM

 Mathematical Word Problems - 2 - Measurement

Measurement

Some questions on the GMAT™ exam involve metric units of measure, whereas others involve English units of measure. However, except for units of time, if a question requires conversion from one unit of measure to another, the relationship between those units will be given.

 Example
Question:
A train travels at a constant rate of 25 meters per second. How many kilometers does it travel in 5 minutes? (1 kilometer = 1,000 meters)
Solution:
In 1 minute the train travels (25)(60) = 1,500 meters, so in 5 minutes it travels 7,500 meters. Since 1 kilometer = 1,000 meters, 7,500 meters equals , 7.5 kilometers.

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