Question

Two cars start together in the same direction from the same place. the first car goes with uniform speed of 10 km/hr .The second car goes at a speed of 8 km/hr in the first hour and increase the speed by 1/2 km/hr in each succeding hour . After how many hours will the second car overtake the first car if both go non stop?

Answer 1

CAR 1-      10       10               10         10                10           10



CAR 2-       8         8 1/2           9           9 1/2            10           10 1/2
 
BY ABOUT 5-6 HOURS HE WILL OVERTAKE THE SECOND CAR