Question

a)A car travelling at 60 km/hr left Dehradun at 3 P.M. One hour later, another car travelling at 80 km/hr started over the same road to overtake the first. How long must the second car travel to overtake the first car.



b)how can I get this thing shown in picture​

Answer 1

∴ x = 3 . Hence, the second car travelled in 3 hours to overtake the 1st car . → Therefore, time taken by second car to overtake the first car = 80x = 80 × 3 = 240 km.

Hope it helps.....