Question

a car travelling at 60 km per hour left Dehradun and 3 p.m one hour later another car travelling at 80 km per hour started over the same Row 2 What is the first how long must the second car travel to overtake the first car

Answer 1

D = v[t] . On overtaking ,both travel the same distance .

Let t = time the 2 nd car travels , then

80t =60[t+1]

20t =60

t=3 hrs

t+1=4 hrs

D=80[3]= 60[4]=240 km =overtaking distance.