Question 411278

distance traveled by smiths in 20 minutes = 48*1/3 = 16 mi

let after x hour Garcias will overtake then...

60*x = 16 + 48*x

=> 60x - 48x = 16 

=> 12x = 16 

=> x = 16/12 = 4/3 hours

x = 1 hour 20 minutes...

after 1 hour 20 minutes  from 08:20 am 


at 9: 40 am