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November 24, 2014

November 24, 2014

Posted by **Anonymous** on Friday, August 30, 2013 at 5:04pm.

+ RN

--------

ABC

The addition problem above is correct. If N, R, A, B, and C are different digits, what is the greatest possible value of B+C?

- SAT Math -
**Steve**, Friday, August 30, 2013 at 6:24pmRN cannot be 99, since R≠N

If RN=98 then

98+89 = 187

So, B+C=15

That's my final answer.

If B+C=16, then since B≠C, the digits must be 79. 97+79=176, B+C=13

it's also easy to show that B+C≠17 or 18

- SAT Math -
**chris**, Tuesday, March 4, 2014 at 3:51pmIt is 11

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