medium · GMAT Quant
A warehouse location code is a three-digit integer N = 100d_1 + 10d_2 + d_3, where d_1, d_2, d_3 are non-zero digits. Reversing all three digits gives N_r = 100d_3 + 10d_2 + d_1. If d_1 + d_3 = 9 and N + N_r = 1,049
What is the value of the tens digit d_2?
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