问题
填空题
If r and s are positive integers,each greater than 1,and if 11(s-1)=13(r-1),what is the least possible value of r+s ？（）
答案
参考答案：5
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If r and s are positive integers,each greater than 1,and if 11(s-1)=13(r-1),what is the least possible value of r+s ？（）
参考答案：5