Container A : Container B = 10 : 1 means the water is split into 10 + 1 = 11 equal parts.<br><br>
&bull; Container A has 10 parts<br>
&bull; Total = 10 + 1 = 11 parts<br>
&bull; Fraction in A = \(\frac{10}{11}\)<br>
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Final Answer: \(\frac{10}{11}\)