Two trains are moving toward each other. One train moves at a speed of 50 mph, and the other train travels at 70 mph. How soon will they meet if the original distance between them was 390 miles?

Solution

Solution

time : 3 \frac{1}{4}

Solution steps

Translate the problem into an equation:

50 x + 70 x = 390

Solve for

x, 50 x + 70 x = 390 : x = \frac{13}{4}

Convert improper fractions to mixed numbers

time : 3 \frac{1}{4}

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