Question
Anna left for city A from city B at 5.20 a.m. She traveled at the speed of 80 km/hr for 2 hrs 15 min. After that the speed was reduced to 60 km/hr. If the distance between two cities is 350 kms, at what time did Anna reach city A?
Answer: Option E
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Distance covered in 2 hrs 15 min i.e., 2 1/4 hrs = 80 * 9/4 = 180 hrs.Time taken to cover remaining distance = (350 - 180)/60 = 17/6 hrs= 2 5/6 = 2 hrs 50 minTotal time taken = (2 hrs 15 min + 2 hrs 50 min) = 5 hrs 5 min.So, Anna reached city A at 10.25 a.m.
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