The percentage of the problems on the quiz did he answer correctly is 76 %.
Total number of problems = 25
Number of problems done correctly by Thomas = 19
We need to evaluate the percentage of the problems on the quiz he did correctly,
So, the percentage of corrected problems is
(Number of problems done correctly/ total number of problems) * 100
Therefore, required percentage = (19/25)*100 = 76 %
Hence, the percentage of the problems on the quiz did he answer correctly is 76 %
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