Question
The distance between Gem's home and the bistro is 550 m. After walking a distance from her home to the bistro, she stopped and walked 40 m back to a farm. If the farm is 180 m away from the bistro, how far had she walked before she stopped and walked back?
4 m

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The distance between Gem's home and the bistro is 550 m. After walking a distance from her home to the bistro, she stopped and walked 40 m back to a farm. If the farm is 180 m away from the bistro, how far had she walked before she stopped and walked back?