Question

Two cars leave Delhi at the same time , travelling in opposite directions . if the average speed of 15 km per hour more than that of the other and their 425 kilometre apart at the end of 5 hour , what is the average speed of each ?

Answer 1

Let the speed of first car is equal to x

The speed of second car be Y

According to the problem

X=y+15

The distance travelled travelled by First car=5x

The distance travelled by second car =5y

According to the problem

From here we know that

5x+5y=425

5y+75+5y=425

Y=35. X=50