In two successive years, 100 and 75 students of a school appeared at t – McqOptions

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1.	In two successive years, 100 and 75 students of a school appeared at the final examination. Respectively 75 % and 60 % of them passed. The average rate of pass is:_________?
A.	68 4/7 %
B.	78 %
C.	80 %
D.	80 4/7 %
Answer» B. 78 %

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