Question
A person travelled for the first 150 km at a certain
speed in 6 hours. After that, the speed of the person decreased by 6 km/h. If the person took a total of 10 hours to reach the destination, then find the total distance travelled by the person.Solution
ATQ, Speed of the person by which he travelled 150 km = 150/6 =25 km/h Time taken to cover the remaining distance = 10 - 6 = 4 hours Decreased speed of the person = 25 - 6 = 19 km/h Distance travelled with decreased speed = 19 × 4 = 76 km Therefore, required distance = 150 + 76 = 226 km
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