Question 336769
D=RT
D=45T 
D=30(T+1)
45T=30(T+1)
45T=30T+30
45T-30T=30
15T=30
T=30/15
T=2 HOURS TO CATCH THE SLOWER CAR.
PROOF:
45*2=30(2+1)
90=30*3
90=90