Can You Solve This Pi Day Riddle? [UPDATE: Answer Revealed]
14 MAR 2018
In celebration of the mathematical constant pi, earlier today we published this riddle. The answer is below.
The Answer: "Pi days"
How to solve:
1) Use the formula for continuously compounded interest: A = P * ert
In this problem, $1 = -$1 *eit
2) Remember Euler’s Identity: eiπ + 1 = 0, or eiπ = -1
Looks like t = π!
3) Finally, check your work:
$1 = -$1 * eiπ
$1 = -$1* -1
$1 = $1