The average weight of 15 girls in a group is 24 kg when a new girl included the average weight increases by 2. What is the weight of the new girl ?
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Answer:
56 kg
Step-by-step explanation:
Average weight: 24 kg
Number of girls: 15
Total weight: 15*24=360 kg
New Total: (15+1)*(24+2)= 416 kg
Weight of the new girl: 416 kg -360 kg= 56 kg
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