Question

The two places A and B are 80km apart from each other on Highway. a car starts from A and a bike starts from B at the same time. if they move in same direction they meet in 8hour and if they move towards each other they meet in 1hour 20minutes. find the speed of car and bike graphically ​

Answer 1

The two places A and B are 80km apart from each other on Highway. a car starts from A and a bike starts from B at the same time. if they move in same direction they meet in 8hour and if they move towards each other they meet in 1hour 20minutes. find the speed of car and bike graphically

Answer 2

Answer:

Speed of Car A  and B are 35 km / hr and 25 km / hr respectively.

Step-by-step explanation:

Let the speed of car at A is x km / hr and at B is y km / hr

Case 1.

8 x - 8 y = 80

x - y = 10

x = 10 + y ... ( i )

Case 2.

4 / 3 x + 4 / 3 y = 80

x + y = 60

x = 60 - y ... ( ii )

From ( i )  and  ( ii )

10 + y = 60 - y

y = 25

Putting value of y in ( i )

x = 10 + 25

x = 35 .