Každý ze tři muzikantů vydělal na společném koncertě stejnou částku.Kamil utratil dvě pětiny svého výdělku,Luboš utratil o 50% více než Kamil a Martinovi z výdělku zbylo 240 korun.Všichni tři muzikanti tak utratili celkem 60% společného výdělku z koncertu.Zbytek poslali jako dar na charitu.Kolik korun činil dar?
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