Imbalance Problem - Part 4
Algebra
Level
1
The above shows how a mobile will be balanced when left to hang, and the rods are all tilted to the maximum degree.
Assuming that the fulcrum is at the center of each rod, what are the relative weights of these shapes?
Circle > Triangle > Rectangle
Rectangle > Triangle > Circle
Rectangle > Circle > Triangle
Circle > Rectangle > Triangle
Triangle > Rectangle > Circle
Triangle > Circle > Rectangle
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1 solution
It is shown that:
∘ + ∘ + △ < □ + ∘ + △ ⇒ ∘ < □ .
On the right arm:
□ + ∘ < △ ⇒ △ > □ > ∘ .