Question 1148230
<br>
The difference between 5 years ago and 8 years from now is 13 years.<br>
If the ratio of his ages at those two times is 2:3, then those two ages are 2*13=26 and 3*13 = 39.<br>
So 5 years ago David was 26; that means 11 years ago he was 20.<br>