The rate of color toner increases $33 to $35 and rate of black&white toner increases $28 to $29 if company spend $1540 in which 3/5 is color toner how much is total expenditure.

• 1540*(3/5)=924($) for color toners
  924/33=28 color toners
  1540-924=616 ($) for b/w toners
  616/28=22 b/w toners
  28*35+22*29=1618 ($) is the total expenditure
  
• 11 years agoHelpfull: Yes(16) No(2)