hard · GMAT Quant
A financial portfolio adjusts its bond allocation b_n in thousands of dollars across five trading days n = 1, 2, 3, 4, 5 according to b_n+1 = 2 b_n + 20. Given that b_3 = 140
What is the average (arithmetic mean) of b_1 and b_5?
- 300
- 310
- 320
- 330
- 340
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