Question
Billy started his xylophone practice at 8.50 a.m. and ended his xylophone practice at 2.40 p.m. He took a 10 break in between his xylophone practice. How much time did Billy spend on his xylophone practice?
2 m

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Billy started his xylophone practice at 8.50 a.m. and ended his xylophone practice at 2.40 p.m. He took a 10 break in between his xylophone practice. How much time did Billy spend on his xylophone practice?