A total of 30 UFOs were spotted in the sky. 1/6 of the UFOs had friendly aliens onboard who stopped for tea, and so they flashed their lights to say hello and flew away. The rest of the UFOs did not have friendly aliens onboard so these UFOs just disappeared into outer space. How many UFOs had friendly aliens onboard?
1 answer
To find out how many UFOs had friendly aliens onboard, we can calculate \( \frac{1}{6} \) of the total number of UFOs spotted.
The total number of UFOs is 30. We calculate:
\[ \frac{1}{6} \times 30 = 5 \]
Therefore, the number of UFOs that had friendly aliens onboard is \( \boxed{5} \).
