Question 209651
D=RT
THE DISTANCES WILL BE THE SAME. THEREFORE:
Da=100T
Db=125(T-.2)
100T=125(T-.2)
100T=125T-25
100T-125T=-25
25T=-25
T=-25/-25
T=1 HOUR IS THE TIME FOR TRAIN b TO CATHCH TRAIN a.
PROOF:
100*1=125(1-.2)
100=125*.8
100=100