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 the sections

A class is divided into two sections A and B. passing average of 20 students of section A is 80%

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 the sections?

Answer:

Total average of both the section = 20*80 + 30*70 / (20 + 30)

                                                             = 1600 + 2100 / 50

                                                             = 74%

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04th January 2019

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