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A ramp has an efficiency of 75%. If 300J of work are used to push someone up the ramp, how much work would have been used to lift them instead?
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A ramp has an efficiency of 75%. If 300J of work are used to push someone up the ramp, how much work would have been used to lift them instead?

User Joseph Smith
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1 Answer

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Explanation:

75:100=x:300

x=75×300/100=225

User Anderish
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