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What is the tens digit of the positive integer \(r?\)

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by Vincen » Fri Oct 16, 2020 12:49 am

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What is the tens digit of the positive integer \(r?\)

(1) The tens digit of \(\dfrac{r}{10}\) is \(3.\)

(2) The hundreds digit of \(10r\) is \(6.\)

Answer: B

Source: GMAT Prep
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