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Points a and b are 100 km apart from highway if car travels in same directions with constant speed they meet in 1 hour. Find speed of cars. |
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Answer» ong>ANSWER: Speed of the cars are 60 km/hr and 40 km/hr. Step-by-step explanation Let the speed of CAR at A be X kmph and the speed of car at B be y kmph when the car travel in same direction Relative Speed is x−y Dist=100km t=5 hours ∴ Dist =S×T 100=(x−y)5 x−y=20⟶(I) when car travel in opp direction Relative Speed is x+y Dist=100km t=1 hours Dist=ST 100=(x+y)1 x+y=100⟶(II) Solving (I) & (II) x−y=20 x+y=100 2x=120 x=60km/h y=40km/h |
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