Posted by Joel on October 14, 2002 at 18:22:16:
In Reply to: Re: Not quite... posted by Desire on October 14, 2002 at 17:47:02:
12) John is 5 years older than Mary. Ten years from now,the sum of their ages will be 39. How old is John now?
: John = J
: Mary = M
: J = 5 + M
: (J+10)(M+10)= 39+10
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J + 10 + M + 10 = 39
(M + 5) + 10 + M + 10 = 39
2M + 25 = 39
NOW FINISH IT. KEEP TRYING UNTIL YOU GET MARY IS 7 AND JOHN IS 12. 7+10 + 12+10 = 39
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