The mean of weight of 10 boys in a group is 45 kg .find x if their weights are as follows : 47,42, 50,46 ,x ,x - 2, x+ 1,48,54 ,50

Achildren’s pain relief elixir contains 80. mg acetaminophen per 0.50 teaspoon. the dosage recommended for a child who weighs between 24 and 35 lb is 1.5 teaspoons. what is the range of acetaminophen doses, expressed in mg acetaminophen/kg body weight, for children who weigh between 24 and 35 lb