In two successive years, 100 and 80 students of a school appeared at t – McqOptions

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1.	In two successive years, 100 and 80 students of a school appeared at the final examination. Respectively 75% and 60% of them passed. Teh average rate of fail is
A.	28.75%
B.	31.66%
C.	32.54%
D.	37.45%
Answer» C. 32.54%

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