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Make a Practice Test
Some Hints & Solutions
** "Reload" or "Refresh" (or F5) the page to make another test from the same selection of problem types.
Select a new problem set.
Question: 378 min = s?
Question: 335 min = hours?
Question: 235 s = ms?
Question: 104 ms = min?
Question: 593 ms = min?
Question: 431 hours = ms?