Question 990251
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You can move boxes from 1 truck per hour.
I can move boxes from 2 trucks per hour. (1 truck/0.5 hr=2trucks/hr)
Together: 1 truck/hr + 2trucks/hr = 3 trucks/hr
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1 truck/(3 trucks/hr)=1/3 hour
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ANSWER: Together we could move the boxes form one truck to another in 1/3 hour (20 minutes).