Posted by Dom on Monday, May 20, 2013 at 7:06pm.
Sara is 24 years younger than Joe. Six years ago she was half as old as he was. How old is he now?

Prealgebra  Reiny, Monday, May 20, 2013 at 7:12pm
present age:
Joe  x
Sara  x24
Six years ago:
Joe  x6
Sara  x24  6 = x  30
x  30 = (1/2)(x6)
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
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