Question

places A and B are 100 KM apart on the highway. one car starts from A and another from B at the same time. if the car travel in the same direction at a constant speed, they meet in 5 hours. if they travel towards each other they meet in 1 hour. what is the speed of the two cars

Answer 1

If the car is moving in opposite durection it takes 1hr
So, sum of their speed is 100km/hr

Also they took 5hr to meet if travelling in same direction

Let the speed ofcar A be xkn/hr
So speed of carB is 100-x km/hr
Thus,
5*x =5(100-x)
X = 50
So speed of carA = 50km/hr
And car B is 50km/hr(100-50)

Answer 2

Answer:

$\huge{\mathcal{\underline{\red{Answer}}}}$

Let the speed of car at A be x km/h

and the speed of car at B be y km/h

As per the question,

5x - 5y = 100

x - y = 20 ... (1)

and x + y = 100 ... (2)

Solving (1) and (2), we get,

x = 60 and y = 40

Speed of the car at A = 60 km/h

Speed of the car at B = 40 km/h