Question

Two trains are 500 miles apart and traveling toward each other one train travels 20 mph than the other and after two hours the trains are 300 miles apart find the speed of the faster train

pls help!

Answer 1

60 mph

Explanation:

We calculate the combined distance travelled by the two trains in two hours.

As they were 500 miles apart at first, and 300 miles apart after, they have travelled 200 miles together.

I think the question means "one train travels 20 mph faster than the other".

Say the faster train has speed x mph. Then the slower has speed x - 20 mph.

Now, the combined distance travelled in 2 hrs is 2 * (x + x - 20) = 200

2x - 20 = 100

2x = 120

x = 60 mph