Two cars leave Delhi at the same time , travelling in opposite directions. If the average speed of one car is 5Km/hr more than that of the other and they are 425 km apart at the end of 5 hrs , what is the average speed of each car ?
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Answer:
Car I x kmph
Car II x+ 5 kmph
They are moving away from each other
So add up their speed
Combined speed = x+x+5
(2x+5)
Time = 5 hours
Distance = 425 km
Distance = speed * time
(2x+5 )* 5 = 425
10 x + 25 = 425
10 x = 425 + -25
10 x = 400
/ 10
x= 40 kmph Car I
Car II 40 + 5 = 45 kmph
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If the average speed of one car is 5 km/hr more than that of the other and they are 425 km apart at the end of 5 hours. ... The speed of car 1 is 40 km/hr. The speed of car 2 is 40+5=45 km/hr.
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