Number the objects in order from lightest to heaviest.
Drag 1 next to the lightest object. Drag 3 next to the heaviest object.
Options: 1 2 3 1 2 3 1 2 3
  1 2 3 1 2 3 1 2 3
  1 2 3 1 2 3 1 2 3
1.
1
2
3
2.
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3.
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4.
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5.
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6.
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7.
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8.
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9.
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10.
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