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8. A boy leaves his house at 9.30 a. m. for his school. The school is 2 km away and classes start at
10.00 a. m. If he walks at a speed of 3 km/h for the
first kilometre, at what speed should he walk the
second kilometre to reach just in time?โ€‹

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8. A boy leaves his house at 9.30 a. m. for his school. The school is 2 km away and classes start...
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