Question 314876
This is more of a word problem. When a number is decreased by 25% of itself, the result is 216. What is the number?

(1 - 0.25)x = 216 (25% is 0.25, you are taking 100% - 25% times the number)
  x - 0.25x = 216
      0.75x = 216
          x = 288