Gladys and Bonita commute to work daily. Bonita drives 60 mi and averages 5mph more then gladys drives 70miles and she is on the road one-half longer then Bonita. How fast do both of them drive?

Question

anonymous · Answer

i need serious help. im absolutely horrible at these kind of problems and im to the point of anger on this one! please help!! :(((

anonymous · Answer

its simple
we know speed = (distance / time )
let us assume Tb (time taken by Bonita) = x hrs
so Sb (speed of bonita ) = 60/x mph.
 
again given= Tg= 3x/2
hence
Sg=140/3x

and 
sb= sg+5

solving 
we get
Sb=22.47
Sg=17.47