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julia stands on a pair of scales three times in succession. the first time she weights 69 kilo, the secound time 69 kilo, and the
julia stands on a pair of scales three times in succession. the first time she weights 69 kilo, the secound time 69 kilo, and the third time 69 kilo. Her real weight is 51 kilo. what is the matter with the scale?
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