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Anna71 [15]
3 years ago
13

A window-washing crew can wash 10 windows per hour. 

Mathematics
2 answers:
Brrunno [24]3 years ago
6 0
200/10=20
it will take the crew 20 hours to complete a building with 200 windows
AleksAgata [21]3 years ago
3 0
It will take them 20 hours to complete 200 windows
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