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1.
"Your hall looks different today," said Gwen. "What did you do?" Tim laughed. "You are observant," he replied. "That old bell cord used to hang down the wall and just reach the floor 165 cm from the corner. I've pulled its end tight over to the corner, and that brought it up just 33 cm from the floor." How long was the cord?
411cm
420cm
429cm
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