Speed of each train

Question

Two trains start from towns 144 miles apart and travel towards each other on parallel tracks. They pass each other 1.6 hr later. If one train travels 10 mph faster than the other, find the speed of each train.

Answer 1

d = r · t

d₁ = r(1.6)

d₂ = (r + 10)(1.6)

d₁ + d₂ = 144

1.6r + 1.6(r + 10) = 144

 

Can you solve for r and answer?