In a Math test, there were 60 problems which to be done in 1 hour. A student completes 30 problems in 20 minutes, the average time in seconds for completing each of the remaining problem is --------.
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Math
Answer:
In a Math test, there were 60 problems which to be done in 1 hour. A student completes 30 problems in 20 minutes, the average time in seconds for completing each of the remaining problem is --------. 80.
