Question
Ken started his drum practice at 8.20 a.m. and ended his drum practice at 4.10 p.m. He took a 25 break in between his drum practice. How much time did Ken spend on his drum practice?
2 m

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Ken started his drum practice at 8.20 a.m. and ended his drum practice at 4.10 p.m. He took a 25 break in between his drum practice. How much time did Ken spend on his drum practice?