## The mean of mark of 20 students are 52 and the mean of mark of 25 students are 43.what is the mean of all 45 students?

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## Answers ( )

Answer:Step-by-step explanationwhen you want to solve the mean you have to add all the variables we have in this case 20+52+25+43=140then divided the answer by the amount of variablesin this case 140/4=35lastly add 35+45=80 students if we add all the 45 students