document.write( "Question 891939: A market research group conducted a survey of 1000 customers and reported that 720 customers like product A and 450 customer like product B. What is the least number of customers that must have liked both product? \n" ); document.write( "
Algebra.Com's Answer #540197 by rfer(16322)\"\" \"About 
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720+450=1170
\n" ); document.write( "1170-1000=170 both
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