Question

2 cars start together in the same direction at the same place. The first goes with uniform speed of 20km/hr n the second goes at 16km/hr in the first hour and increases the speed by 1km each succeeding hour.àfter how many hours will the second car overtake the first if both goes non-stop

Answer 1

Himanshu humanity ntsc b ugh I gb th in Jaime disco her

Answer 2

Answer:

after 10 hrs

Step-by-step explanation:

let the cars be A and B

hour      distance

           A           B

      constant

        speed

      20 km/hr

1          20         16(speed = 16 km/hr)

2         40         33(speed = 17 km/hr)

3         60         51(speed = 18 km/hr)

4         80         70(speed = 19 km/hr)

5         100        90(speed = 20 km/hr)

6         120        111(speed = 21 km/hr)

7         140        133(speed = 22 km/hr)

8         160        156(speed = 23 km/hr)

9         180        180(speed = 24 km/hr)

10        200       205(speed = 25 km/hr)