Question

A car has traveled 1/5 of the total distance in 3/4 of an hour. How long, at this rate, will it take the car to complete the distance?

Answer 1

`(1)/(5)\ -\ (3)/(4)\\\\1\ -\ x\\\\cross\ multiply\\\\(1)/(5)x=(3)/(4)\ \ \ \ |multiply\ both\ sides\ by\ 5\\\\x=(15)/(4)\\\\x=3(3)/(4)\ (h)`

Answer: 3.75h or other form 3h and 45min.