Question
Pierre started his guitar practice at 8.40 a.m. and ended his guitar practice at 2.30 p.m. He took a 25 break in between his guitar practice. How much time did Pierre spend on his guitar practice?
2 m

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Pierre started his guitar practice at 8.40 a.m. and ended his guitar practice at 2.30 p.m. He took a 25 break in between his guitar practice. How much time did Pierre spend on his guitar practice?