Question

In a competitive exam, the passing percentage is 40%. Marks obtained by ‘A’ is 10% less than passing marks, and ‘B’ scores 20% marks less than
A. What percent less (up to 2 decimal places) than the sum of A’s and B’s marks should C obtain to pass the exam at the borderline?

A 38.27%
B 20.25%
C 65.55%
D 42.86%
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