How much is the unit price of a garment? How much is the current price?

How much is the unit price of a garment? How much is the current price?

The quantity of this unit is the original price of the clothes, and the present price is 9 / 10 of the original price

The price of a commodity was reduced by 20% first, and then by 20%. What is the current price

Suppose that this commodity is 100 yuan:
After the first 20% reduction, the price is: 100 * (1-0.2) = 80 yuan
After the second 20% reduction, the price is: 80 * (1-0.2) = 64 yuan
After two price cuts: (64 / 100) * 100% = 64%
So the answer is: 64%

1. A kind of black-and-white TV, the price of each set is 150 yuan, which is just 20% lower. How much is the price of each set now
2. A and B vehicles travel from two places 400 kilometers apart at the same time. After 6 hours, the two vehicles are still 4 kilometers apart. If a vehicle travels 32 kilometers per hour, how many kilometers per hour does B vehicle travel?
3. Spring outing is organized on June 1, and there are 36 people with one teacher. The admission fee of the park is 15 yuan per person. 30 or more people can enjoy 20% discount, and the teacher is free of charge. How do you think to buy a good ticket? How much is the least money?

1. A kind of black-and-white TV, the price of each set is 150 yuan, which is just 20% lower. Now how much is the price of each set? Now the price = 150 yuan × 20% = 120 yuan. 2. A and B cars travel from two places 400 kilometers apart at the same time, and after 6 hours, the two cars are still 4 kilometers apart