Question
Mrs Flynn compares the length of 3 strings, W, X and Y. String W is 419 cm long. It is 122 cm longer than String Y. String Y is 245 cm shorter than String X. What is the length of String X?
4 m

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Mrs Flynn compares the length of 3 strings, W, X and Y. String W is 419 cm long. It is 122 cm longer than String Y. String Y is 245 cm shorter than String X. What is the length of String X?