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Adam and Harry are travelling from city X to city Y in their respective cars. Adam reaches city Y in 3 hours whereas Harry reaches 45 minutes after Adam. If the speed of Harry’s car is less than Adam’s car by 12 km/hr, find the speed of Adam’s car. answer:- km/h i will mark you as brainliest |
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Answer» Answer: Adam TAKES time = 3 hrs Harry takes time = 45/60 = 0.75 hrs Speed of Adam's CAR = m Speed of Harry's Car = m - 12
For Adam's Car,
∴ 3m = Z For Harry's Car,
∴ m - 12 = 4m ∴ 3m = -12 ∴ m = -4 But speed cam't be negative ∴ m = 4 km/h ∴ Speed of Adam's Car = m = 4 km/h NEED FRIENDS |
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