Anna spent 1/4 of her money, and now she has $24 left. How much did she have originally? Think carefully first, then make a decision:
Let X be the amount Anna had originally. She spent X * 1 / 4 and has X - X * 1 / 4 = $24 left. Combining like terms, we get X * 3 / 4 = $24. Dividing both sides by 3 / 4, we get X = $32. So, the answer is 32.