SOLUTION: the present age of abu's mother is three times the present age of him.after five years their ages will add to 66 years.find their present ages.

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Question 888291: the present age of abu's mother is three times the present age of him.after five years their ages will add to 66 years.find their present ages.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +a+ = Abu's age now
Let +m+ = his mother's age now
-------------------------------
(1) +m+=+3a+
(2) +a+%2B+5+%2B+m+%2B+5+=+66+
--------------------------
(2) +a+%2B+m+=+56+
Substitute (1) into (2)
(2) +a+%2B+3a+=+56+
(2) +4a+=+56+
(2) +a+=+14+
and, since
(1) +m+=+3a+
(1) +m+=+3%2A14+
(1) +m+=+42+
Abu is 14
His mother is 42