Problema Solution
A store has $30,000 of inventory in printers and computers. The profit on a printer is 22% and the profit on a computer 40%. The profit for the entire stock is 35%. How much was invested in each?
Answer provided by our tutors
let 'x' represent the dollar amount of printers, then '30000-x' represents the dollar amount of computers
0.35(30000) = 0.22x + 0.4(30000-x)
solving for 'x' we have x=8333.33
30000-8333.33 = 21666.67
$8,333.33 was invested in printers, $21,666.67 was invested in computers