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| # | Name | Tags | Difficulty | Solved by | |
|---|---|---|---|---|---|
| ✓ | rb_ch01_q013 | 100 light bulbs and 100 stockbrokers Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions | x0 | ||
| ✓ | rb_ch01_q014 | 100 light bulbs continued Red Book (Heard on the Street) · Ch 1 · Purely Quantitative & Logic Questions | x0 |