A class is divided into two sections A and B. Passing average of 20 students of section A is 80% and passing average of 30 students of section B is 70%. What is the passing average of both of the sections? (A) 72% (B) 74% (C) 75% (D) 77%

A class is divided into two sections A and B. Passing average of 20 st

1.	A class is divided into two sections A and B. Passing average of 20 students of section A is 80% and passing average of 30 students of section B is 70%. What is the passing average of both of the sections? (A) 72% (B) 74% (C) 75% (D) 77%
Answer» Correct option is (B) 74%

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A class is divided into two sections A and B. Passing average of 20 students of section A is 80% and passing average of 30 students of section B is 70%. What is the passing average of both of the sections? (A) 72% (B) 74% (C) 75% (D) 77%

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