The equation is used to calculate the total number of 240 TV sets of various brands in the electric market, which is one fifth more than that of refrigerators?
240 divided by (1 + 1 / 5) + 240 = 240 divided by 6 / 5 + 240 = 200 + 240 = 440
240 divided by (1 + 1 / 5) + 240 = 240 divided by 6 / 5 + 240 = 200 + 240 = 440