Question
Ken started his saxophone practice at 8.30 a.m. and ended his saxophone practice at 4.15 p.m. He took a 10 break in between his saxophone practice. How much time did Ken spend on his saxophone practice?
2 m

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Ken started his saxophone practice at 8.30 a.m. and ended his saxophone practice at 4.15 p.m. He took a 10 break in between his saxophone practice. How much time did Ken spend on his saxophone practice?