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Puzzle #207: Can you work out the ages of the four aliens?

Can you solve this week’s arithmetical puzzle, Total recall? Plus the answer to puzzle #206

1 February 2023

#207 Total recall

Set by Zoe Griffiths

I recently had the incredible opportunity of talking to an intergalactic traveller about her encounter with four extraterrestrial beings.

“The aliens have purple skin, long, floppy legs and large orange eyes,” she told me. “And they revealed to me the true nature of dark matter.”

I leaned in close with excitement.

“Unfortunately, I don’t remember anything about that. I do remember a great puzzle they told me, though. I asked them their ages, and they said that if you sum up the ages of only three of them, the possible totals are 24, 53, 54 and 61. From this, they told me that I could…

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