Question

Two cars pass each other on a freeway at 6:30 a.m. The car driving north is

Answer 1

Answer:

$\large \boxed{\text{15 min}}$

Step-by-step explanation:

The cars are diverging at a combined speed of 60 + 40 =100 mi/h.

That is the same as if one car stood still and the other sped away at 100 mi/h.

$\text{Time} = \text{25 mi} \times \dfrac{\text{1 h}}{\text{100 mi}} = \text{0.25 h} = \text{15 min}\\\text{The cars will be 25 mi apart in \large \boxed{\textbf{15 min}} }$