Question
A man travels a total distance of 500 km. He covers 48%
of the distance at a speed of 60 km/h and the remaining distance at a speed of 'y' km/h, taking a total of 9 hours for the entire journey. What is the distance he covers in 2 hours if his speed is (y + 3) km/h?Solution
Time taken to cover 48% of total journey = (0.48 X 500) ÷ 60 = 4 hours Remaining distance = 0.52 X 500 = 260 km Remaining time = 9 - 4 = 5 hours So, 'y' = (260/5) = 52 So, required distance = (52 + 3) X 2 = 110 km
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