Question

Ten years ago, the average age of a newly-wed couple was 25. Five years ago, the average
age of the man, his wife and their son was 21. At present, the average age of the man, his
wife, their son and their daughter is 20. What is the age difference (in years) between the
son and the daughter?
1) 4
2) 3
3) 6
4) 2​

Answer 1

Answer:

6 is the age difference between son and daughter

Step-by-step explanation:

Here is the answer