SOLUTION: average weight of all students in a class is 43 kh. Four new sudents whose weights are 42 kg, 36.5 kg, 39.5 kg and 42 kg join the class. Now, their average weight reduces by 500 gr
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-> SOLUTION: average weight of all students in a class is 43 kh. Four new sudents whose weights are 42 kg, 36.5 kg, 39.5 kg and 42 kg join the class. Now, their average weight reduces by 500 gr
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Question 1088694: average weight of all students in a class is 43 kh. Four new sudents whose weights are 42 kg, 36.5 kg, 39.5 kg and 42 kg join the class. Now, their average weight reduces by 500 gram. The number of students in beginning is Answer by ikleyn(52898) (Show Source):
