# Computation of percentiles

A student took two exams and achieved the 7th highest grade on each of them. Forty three students took one of the tests(Math) and 197 students took the other test(Geography). Compare his performance on the two tests in terms of percentile ranks. In which exam did he do better? Please show computations and explain.

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#### Solution Preview

If you rank all the scores, you'll note the following

Math: 6 persons scored higher and 36 persons scored lower than the test subject. I arrived at the 36 by subtracting the 7 highest scores (which includes the test subject) from the total number of candidates sitting for the exam (43 for math). Thus, 37 persons had a score lower ...

#### Solution Summary

The solution addresses the percentile of a student took two exams and achieved the 7th highest grade on each of them. Forty three students took one of the tests(Math) and 197 students took the other test(Geography). Compare his performance on the two tests in terms of percentile ranks. In which exam did he do better? Please show computations and explain.