The average weight of a group of 8 persons increases by 2.5 kg when one person weighing 54 kg is replaced by a new person. How much does the new person weigh?
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Q:
The average weight of a group of 8 persons increases by 2.5 kg when one person weighing 54 kg is replaced by a new person. How much does the new person weigh?
- 174 kgtrue
- 277 kgfalse
- 372 kgfalse
- 476 kgfalse
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