document.write( "Question 363707: the ages of mother and son are in a ratio of 10:3. if the mother is 40 years old, how old is the son? \n" ); document.write( "
Algebra.Com's Answer #259373 by robertb(5830)\"\" \"About 
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If \"m%2Fs+=+10%2F3\", then \"40%2Fs+=+10%2F3\", or s = 12. The son is 12 years old.
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