In a class of 140 students, 60% of them passed. By what percent is the number of students who passed more than the number of failed students?

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In a class of 140 students, 60% of them passed. By what percent is the number of students who passed more than the number of failed students?

A. 80%
B. 20%
C. 40%
D. 50%
E. None of these
Explanation:
Number of students passed = 60% of 140 = 60/100 * 140 = 84
Number of students failed = 140 – 84 = 56.
Required percentage = 28/56 * 100 = 50%.