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There are 30 students in a class. One student weighing 25 kg goes away and a new student joins the class. If the average weight is then increased by 200 grams, what is the weight of new student ? ?->(Show Answer!)
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1. There are 30 students in a class. One student weighing 25 kg goes away and a new student joins the class. If the average weight is then increased by 200 grams, what is the weight of new student ?





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