Question
The age of Simon is 45 of Eric's age. 40 years ago, the ratio of Simon's age to Eric's age was 4 : 7. How old is Eric now?
2 m

Click button first when a symbol is required. X

The age of Simon is 45 of Eric's age. 40 years ago, the ratio of Simon's age to Eric's age was 4 : 7. How old is Eric now?