Let distance Linda is from the fulcrum be L

Then distance Joanne is from the fulcrum is: 10 - L

Since products of each weight and their distances from the fulcrum are equal, then we get: 80L = 120(10 – L)

80L = 1,200 – 120L

80L + 120L = 1,200

200L = 1.200

L, or distance Linda is from the fulcrum = , or  feet

Therefore, Joanne is 10 – 6, or  feet from the fulcrum



If the seesaw is balanced (not stated, but is assumed to be), Linda the lighter girl must be sitting farther

from the fulcrum than Joanne, whom, being the heavier of the 2, must be sitting closer to the fulcrum. 

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