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:_?

Math Mcqs / By Hanan

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 %

Explanation:

Total candidates = (100 + 75) = 175

Total passed = (75/100 × 100) + (60/100 × 75)

= (75 + 45) = 120

Therefore Pass % = (120/175 × 100)%

= 480/7 % = 68 4/7 %

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