How much is the price of a garment if it is sold at 20% off the marked price and still earns 32 yuan? The inner diameter of the water pipe is 2 cm, and the flow rate of water in the pipe is 8 cm per second? Dongchen primary school held a painting competition, in which 15 people won the first prize, accounting for one eighth of the total number. The number of people who won the second and third prizes despised 2:5. How many people won the third prize? A and B start from a and B at the same time and travel in opposite directions. A travels 80 kilometers per hour, B travels 10% of the whole journey per hour. When B reaches 5 / 8 of the whole journey, a can reach B by another 1 / 6 of the whole journey. How many kilometers are there between a and B? Three different prime numbers can be obtained by subtracting the same four digit number from 1999, 1989 and 1979 respectively. What is the minus four digit number? (brief reasons) That's all. I hope you can cooperate more!

How much is the price of a garment if it is sold at 20% off the marked price and still earns 32 yuan? The inner diameter of the water pipe is 2 cm, and the flow rate of water in the pipe is 8 cm per second? Dongchen primary school held a painting competition, in which 15 people won the first prize, accounting for one eighth of the total number. The number of people who won the second and third prizes despised 2:5. How many people won the third prize? A and B start from a and B at the same time and travel in opposite directions. A travels 80 kilometers per hour, B travels 10% of the whole journey per hour. When B reaches 5 / 8 of the whole journey, a can reach B by another 1 / 6 of the whole journey. How many kilometers are there between a and B? Three different prime numbers can be obtained by subtracting the same four digit number from 1999, 1989 and 1979 respectively. What is the minus four digit number? (brief reasons) That's all. I hope you can cooperate more!

How much is the price? (120 + 32) △ 80% = 152 △ 80% = 190 yuan) the inner diameter of the water pipe is 2 cm, and the flow rate of water in the pipe is 8 cm per second