Question
Billy left his house at 05 10 to take a bus. He needed to walk for 15 min to the nearest bus stop to catch the bus which will take another 20 min to reach his school. What was the earliest time that he would reach his school?
3 m

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Billy left his house at 05 10 to take a bus. He needed to walk for 15 min to the nearest bus stop to catch the bus which will take another 20 min to reach his school. What was the earliest time that he would reach his school?