Final answer:
The mother is 3 times older than the daughter.
Step-by-step explanation:
To find the number of years older the mother is than the daughter, we need to first express their ages in terms of the same variable. Let's assume the daughter's age is d. According to the information given, the mother is 4 times as old as the daughter, so the mother's age is 4d. To calculate the number of years older the mother is, we subtract the daughter's age from the mother's age: 4d - d = 3d. Therefore, the mother is 3 times older than the daughter.