In a class there are 30 boys,whose average weight is decreased by 200 gm. When one boy whose weight is 25 kg leaves the class,a new one is admitted. Find the weight of the new comer
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Answer:
19 kg
Step-by-step explanation:
average weight decrease = 200 g
total weight decrease = 30*200 = 6000 g = 6 kg
left boy's weight = 25 kg
new comer weight = 25 - 6 = 19 kg
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