Question

In an internal assessment, the minimum passing percentage is 45%. Marks scored by ‘M’ are 15% less than passing marks, and ‘N’ scores 18% marks less than
M. What percent less (up to 2 decimal places) than the sum of M’s and N’s marks should O obtain to pass the exam at the borderline?

A 38.27%
B 20.25%
C 35.33%
D 42.86%
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