Question

places a and b are 100 km apart from each other.A car...

Answer 1

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Speeds of cars at places A and B are 60 km/h and 40 km/ h respectively

$\bf{QUESTION}$

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

$\bf{step \: by \: step \: explanation}$

Let the cars from A and B start at speeds x km/h and y km/h respectively

Then,

5x - 5y = 100

==> x - y = 20 ..........( 1 )

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

Adding ( 1 ) & ( 2 ) , we get

2x = 120

=> x = 60

•°• from ( 1 ), y = 60 - 20

•°• y = 40

•°• Speeds of cars at places A and B are 60 km/h and 40 km/ h respectively

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