In order to promote sales, the boss of the clothing store came up with a "smart move": increase the clothing price by 20% before the Spring Festival, and then reduce the price by 20% near the Spring Festival. A discount sale really attracted many customers. At the end of the day, the boss found that the payment for goods was much less than before. The boss wondered: the price increase and price decrease are both 20%, which should be the same as the original price! How can it be sold less than the original price?
Suppose that the original unit price is a yuan, the unit price after price increase is a × (1 + 20%) = 1.2A, the unit price after price decrease by 20% is 1.2A × (1-20%) = 0.96a, ∵ a > 0.96a, the payment for goods is much less than the original
In order to promote sales, the boss of the clothing store came up with a "smart move": increase the clothing price by 20% before the Spring Festival, and then reduce the price by 20% near the Spring Festival. A discount sale really attracted many customers. At the end of the day, the boss found that the payment for goods was much less than before. The boss wondered: the price increase and price decrease are both 20%, which should be the same as the original price! How can it be sold less than the original price?
Suppose that the original unit price is a yuan, the unit price after price increase is a × (1 + 20%) = 1.2A, the unit price after price decrease by 20% is 1.2A × (1-20%) = 0.96a, ∵ a > 0.96a, the payment for goods is much less than the original
A computer, the original price of 3840 yuan per unit, due to the arrival of the Spring Festival, now manufacturers are engaged in promotional activities, plan to reduce the price by 25% each time
A computer, the original price of 3840 yuan per unit, due to the arrival of the Spring Festival, now manufacturers engaged in promotional activities, plans to reduce the price by 25% each time
Q: how to find the functional relationship between the price of each computer y yuan and the times of price reduction x?
The functional relationship between the price of each computer y yuan and the times of price reduction x is
y=3840(1-25%)^x
In the Spring Festival, a color TV store launched a sales promotion campaign to reduce the price of a certain brand of color TV set by 200 yuan. Now the price of this kind of TV set is 1800 yuan. What percentage of the price reduction?
200 (1800 + 200) = 200 (2000) = 10%. A: 10% reduction