The sum of sid's and Sue's ages is 30. If, 8 years ago, Sid was as old Sue was 2 years ago, then how old is Sid now?
In the other problem here : https://web2.0calc.com/questions/help-please_8228
Sue's age was found to be 12
So....Sid is 18
What is the average of all the odd numbers between 20 and 50