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13. Adam spends 15 minutes walking to the car park and then drives for 40 minutes to reach the office. If his work starts at 9:00 a.m., what time should he depart?
Correct Incorrect To calculate his departure time, add his walking time of 15 minutes to his driving time of 40 minutes. For a punctual arrival at work, he should leave at 8:05 a.m., which is 55 minutes before 9 o'clock!