Ten years ago, the person was 20 years old.
Add those ten years to determine their current age:
20 + 10 = 30
The question then asks how old the person will be 30 years later, meaning 30 years from now:
30 + 30 = 60
The correct answer is 60 years old.
A common mistake is to add only 30 to the original age of 20, but that ignores the ten years that have already passed.
The five lit candles on top of the birthday cake are only the beginning of this counting puzzle. Several more striped candles are hidden around the presents…
Fifteen blue-and-yellow umbrellas are arranged in a neat grid, but one has a small detail that does not match the others. Try comparing the canopy panels, top…
This quick equation can be solved in just two steps. The expression is 84 ÷ 7 + 2. Complete the division first. 84 ÷ 7 = 12….
This detailed illustration hides a collection of animals inside the turtle’s shell, body, and legs. Look closely and you can spot birds, a lizard, rabbit, owl, fish,…
The different sizes and overlapping colors make this button-counting puzzle surprisingly easy to miscount. Work around the outside first, then count the larger buttons in the middle…
This puzzle looks simple, but the correct order of operations still matters. The expression is 48 ÷ 8 + 11. First, 48 ÷ 8 = 6. Then…
