Question

The amusement park celebrates its 2nd Decade anniversary after 3 years. Shalini is now curious to know when was the amusement park formed, if this year is 2022?

Answer 1

Solution:
1 Decade = 10 years
The amusement park is celebrating its 2 Decade anniversary 3 year after 2022, 2022 +3 years = 2025
2 Decade = 20 years
The amusement park was established 20 years before 2025.
The amusement park was established in 2025 - 20 years= 2005

So the amusement park was established in 2005