Math, asked by shoaibshabbir790, 3 months ago

there are total 30 students in a class.On thursday,18 students took a math test and their mean marks was 80.The remaining 12 students took a math test on friday and their mean marks was 90.Find the mean marks of the entire class?

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Answered by ushaw8715

0

Here is your answer

Step-by-step explanation:

Your answer is 170

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