question archive An elevator at a construction site has a maximum capacity of 1640 pounds
An elevator at a construction site has a maximum capacity of 1640 pounds
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An elevator at a construction site has a maximum capacity of 1640 pounds. If the elevator operator weighs 240 pounds and each cement bag weighs 50 pounds, how many bags of cement can be safely lifted on the elevator in one trip?
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Sol: -
1640=240+50(x)
1640=240+50x
1640-240=50x
50x=1400
x=140050
x=28
Check:
1640=240+50(28)
1640=240+1400
1640=1640
True
Hence, 28 bags can be safely lifted.
