present age:
Joe --- x
Sara --- x-24
Six years ago:
Joe ---- x-6
Sara --- x-24 - 6 = x - 30
x - 30 = (1/2)(x-6)
times 2
2x - 60 = x - 6
x = 54
Joe is now 54 , and Sara is now 30
check:
six years ago , Joe was 48 , and Sara was 24
Was he twice as old as Sara ??? YES
Sara is 24 years younger than Joe. Six years ago she was half as old as he was. How old is he now?
1 answer
1 answer