Question

The distance of a train from a station, varies directly with time, t. If d = 300 miles when t = 4 hours, find d when t = 6.

Answer 1

d = 450

Explanation:

Turn this problem into a proportion. 300/4 = x/6

Cross multiply. (300)*(6)=x*(4)

= 1800=4x

Divide 4 from both sides

x = 450