问题标题:
Janeis5yearsoiderthanheryoungerbrotherpeter.Peteris6yearsolderthanjim,theyoungestinthefamily.Ifthetotalofthechildren'sagesis32,howoldistheeldestchild?
问题描述:
Janeis5yearsoiderthanheryoungerbrotherpeter.Peteris6yearsolderthanjim,
theyoungestinthefamily.Ifthetotalofthechildren'sagesis32,howoldistheeldestchild?
韩蕾回答:
JaneX+6+5
PeterX+6
JimX
三个人的年龄加一起32岁,X+6+5+x+6+x=32,x=5,这是Jim的年龄,Jane=5+6+5=16,因此:
Sheis16yearsold.
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