medium · GMAT Quant
A parking garage uses a ticket dispenser with a revolving numerical code display from 1 to 50. At the start of shift tick 1, the code is set to 12. On each subsequent shift tick n, the code advances forward by 15 units, wrapping around from 50 back to 1.
What code is displayed on shift tick 21?
- 27
- 47
- 12
- 50
- 1
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