Question
Oscar answered 30 questions in an exam. He took 3 min for each of the first 9 questions and 4 min for each of the remaining questions. The exam started at 7.20 a.m. At what time did Oscar complete his exam? (Give your answer in 12-hour clock format.)
2 m

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Oscar answered 30 questions in an exam. He took 3 min for each of the first 9 questions and 4 min for each of the remaining questions. The exam started at 7.20 a.m. At what time did Oscar complete his exam? (Give your answer in 12-hour clock format.)