Question
The age of Billy is 23 of Daniel's age. 6 years ago, the ratio of Billy's age to Daniel's age was 4 : 7. How old is Daniel now?
2 m

Click button first when a symbol is required. X

The age of Billy is 23 of Daniel's age. 6 years ago, the ratio of Billy's age to Daniel's age was 4 : 7. How old is Daniel now?