The distance between two towns is 300km. Two cars start simultaneously from from these towns and move towards each other. The speed of one car is mora than the other by 7 km/hr. If the distance between the card after 2 hrs is 34km, find the speed of the cars.
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Answer:
let the speed of the first car be x
speed of other car = (x+7)
distance covered by first car after 2 hours = 2x
distance covered by 2nd car = 2(x+7) = 2x+14
ATQ , 2x+2x+14+34 = 300
4x+14+34 = 300
4x+48 = 300
4x = 300 - 48
x = 252 / 4 = 63 km/hr
speed of 2nd car = 63 + 7 = 70 km/hr
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