119, 019, 609, 809, xxx, 909
What is the underlying principle here?
Source: 2.2., 4, https://www.helsinki.fi/sites/default/files/atoms/files/psykologia_valintakoe_2019.pdf
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1 Answer
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The answer is:
L09
You might think I have made a mistake there, but I suggest that you:
consider what all of the terms of your sequence look like when written on a calculator (or similar 7-segment display) and turned upside down!
Try it yourself and see!
