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If a ramp to the top of a 30 meter building at a construction site has a mechanical advantage of 4, how long must the ramp be?

If a ramp to the top of a 30 meter building at a construction site has a mechanical advantage of 4, how long must the ramp be?
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If a ramp to the top of a 30 meter building at a construction site has a mechanical advantage of 4, how long must the ramp be?

User Mike Davis
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The answer is 120 meters
User Serge Belov
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