Two cars travelling from one city to another

Question

Two cars travel from city A to city B. Car 1 travels at 50 mph and takes 2 hours longer to cover the distance between the cities than car 2 which travels at 60 mph. How long does it take car 1 to drive from city A to city B?

Answer 1

Say, car 2 takes t hours

So, car 1 shall take t+2 hours

 

So,

50(t+2)=60t

10t=100

t=10 hours

 

So car 1 shall take 12 hours to reach from A to B