剩下的甲做: [1-(1/10+1/12)×5]÷1/10 =[1-11/12]÷1/10 =1/12÷1/10 =5/6天 剩下的乙做: [1-(1/10+1/12)×5]÷1/12 =[1-11/12]÷1/12 =1/12÷1/12 =1天
