Question 1121061
positive profit is equal to negative loss.
positive loss is equal to negative profit.


looking at this from the profit perspective, then:


net profit = profit minus loss.


he sells 5700 televisions at a profit of 250 for each television to get a total profit of 5700 * 250 = 1,425,000 rupees.


he sells 2500 laptops at a loss of 150 for each laptop to get a total loss of 2500 * 150 = 375,000 rupees.


his total net profit is 1,425,000 minus 375,000 = 1,050,000 rupees.


if he sells 300 laptops, how many televisions must he sell in order to break even (neither profit nor loss).


let x = the number of televisions he needs to sell.


your equation becomes 0 = x * 250 - 300 * 150.


simplify to get 0 = 250 * x - 45,000.


solve for x to get x = 45,000 / 250 = 180.


he needs to sell 180 televisions to break even (neither profit nor loss).


that's your solution.


180 * 250 - 300 * 150 = 0