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With the local train at 48 mph and the express 12 mph faster, the express train runs at:
A72 mph
B50 mph
C60 mph
D56 mph
Answer & Solution
Correct answer: C. 60 mph
1. Add 12 to 48.
2. The express runs at 60 mph.
3. Both cover 240 miles.
_Source: OpenStax Elementary Algebra 2e, Chapter 3, Uniform Motion Applications (CC BY 4.0)._
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