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Pick out the wrong conversion formula for the conversion of weight units :

1 tonne = 1000 kg = 22.046 lbs
1 U.S. ton = 907 kg = 0.907 tonne = 0.893 ton
1 ton = 2240 lbs = 1016 kg = 1.016 tonnes = 1.12 U.S. tons
none of these

Correct Answer: none of these

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