Mathematics, 28.08.2019 04:20 ava789
What is the tens digit of the positive integer r ? (1) the tens digit of \small \frac{r}{10} is 3. (2) the hundreds digit of 10r is 6.
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What is the tens digit of the positive integer r ? (1) the tens digit of \small \frac{r}{10} is 3....
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