A bike rider increases his speed by 1 km/hr after every 30 minutes. If the distance travelled in the first half an hour is 30 km, what is the distance covered in 5 hours
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Time taken to cover the remaining 20 km = 20/30 = 2/3 hour = 40 minutes. Total time taken = 3/2 + 2/3 hours = 13/6 hours = 2 1/6 = 2 hours 10 minutes. Hence the required answer is 3.10 pm. A bike rider increases his speed by 1 km after every 30 minutes
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