A home appliance store first raised the price of each color TV set by 40% according to its purchase price. Then, in the advertisement, it announced that it would sell at a 20% discount on the price. As a result, each TV set earned 300 yuan, How much is the price of each color TV?

A home appliance store first raised the price of each color TV set by 40% according to its purchase price. Then, in the advertisement, it announced that it would sell at a 20% discount on the price. As a result, each TV set earned 300 yuan, How much is the price of each color TV?

Purchase price = 300 ÷ (140% × 0.8-1) = 2500 yuan

The original price of a color TV is 1200 yuan, which is 5 / 1 higher than the current price. How much is the current price? (solve the equation)
There are 3400 chickens in the chicken farm. There are 1 / 8 more cocks than hens. How many cocks and hens are there? (solve the equation) the first one is 1 / 5
A construction team has built a highway, 4 / 5 of which has been built and 210 meters to go. How long is the highway? (arithmetic, equation, two algorithms)

According to the meaning of the question x + X / 5 = 12005x / 5 + X / 5 = 12006x / 5 = 12006x / 5 = 12006x = 6000x = 1000, the present price is 1000 yuan. If there are x hens, there will be x + X / 8 cocks. According to the meaning of the question x + X + X / 8 = 34008x / 8 + 8x / 8 + X / 8 = 340017x / 8 = 340017x = 27200x = 1600, there will be 1600 hens and 1800 cocks

After a clothing price reduction of 15 yuan, the price is 96 yuan, then the original price of this kind of clothing is 96 yuan______ Yuan

96 (1-15), = 96 (45), = 96 × 54, = 120 (yuan); answer: the original price of this kind of clothing is 120 yuan; so the answer is: 120