Question
Oliver started his piano practice at 9.35 a.m. and ended his piano practice at 2.15 p.m. He took a 30 break in between his piano practice. How much time did Oliver spend on his piano practice?
2 m

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Oliver started his piano practice at 9.35 a.m. and ended his piano practice at 2.15 p.m. He took a 30 break in between his piano practice. How much time did Oliver spend on his piano practice?