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RELATED INFORMATIONS

• 1. The father is 27 years older than his son. Four years later, the father's age is four times that of his son. How old is his son this year?
• 2. This year, father and son are 44 years old. Ten years later, father is three times as old as son. How old is father this year
• 3. My father is 28 years older than Xiao Liang. Seven years later, my father's age is just three times that of Xiao Liang. How old are my father and Xiao Liang after seven years?
• 4. My father is 28 years older than Xiao Liang. Seven years later, my father's age is just three times that of Xiao Liang. How old are my father and Xiao Liang after seven years?
• 5. There are 34 people playing on the 11 table tennis tables. How many tables are there in singles and doubles?
• 6. A cylindrical tin oil barrel is filled with gasoline. Pour 2 / 3 of the gasoline in the barrel, and there are 36 liters left. It is known that the height of the oil barrel is 8 decimeters, and what is the bottom area of the oil barrel? To pave a piece of land, it's 2400 fast to use 3-decimeter-long square bricks, but how fast to use 2-decimeter-long square bricks instead
• 7. One week later, kiosk a reduced the price by 15%, and another week later, kiosk B increased the price by 30%. Kiosk B only raised the price by 15% two weeks later. Which one of kiosks A and B sold more in two weeks? 2. Our body needs to take in 2500 ml water every day. 48% of the water is from food, and the rest is from drinking water. How much water does the human body get from drinking water every day?
• 8. 1. Zhao Wei's movie ticket is "No.4, row 11", abbreviated as (11,4). If Li Ming's position is (3,6), then how many rows is the distance between Zhao Wei and Li Ming? 2. Draw the largest circle in a square. What percentage of the area of the circle in the square? 3. In a square grassland with a side length of 10 meters, there is a tree at the two ends of a diagonal line. Each tree is tied with a cow. The rope length is 10 meters. How many square meters of grassland can both cows eat?
• 9. A cylindrical container with a bottom radius of 10 cm holds 27 cm high water. Put it into a stone. After immersion, the height of the water surface rises to 35 cm. What is the volume of this stone?
• 10. 69 10 One day, Uncle Li works 4 hours in the morning and 3 hours in the afternoon, processing 1400 parts. If Uncle Li's work efficiency remains unchanged, how many parts does he process in the morning?
• 11. General term formula of sequence 1 37 15 31 63 127
• 12. What is the number between 0 - 1 3 - 7 () - 31 63 - 127?
• 13. What is the least common multiple of 15.25.35? How to solve this problem?
• 14. A=15 B=25 C=35… 15= A=15 B=25 C=35… 15 = how much
• 15. Use 5, 10, 15, 20, 25, 30, 35, 40, 45 to make a nine palace grid Use these numbers to fill in the ninth square
• 16. Solution equation: 1.98% x = (1000-x) 2.15 ‰ x12x (1-20%)
• 17. 1.4 * 1 = 15 5 * 4 = 21 4 * 5 = 11 8 * 16 = 48 then: 10 * 9 = () this is the problem of defining new operation
• 18. X-35 + 8 = 15 to solve the equation
• 19. 1. If the two solutions of the equation AX + by = 10 are x = 6, y = - 4 and x = 2, y = 2, then a = () B = () If 3x-6y = 5, then 2y-x + 1 = () Given that the solution of the system of equations 2x + 3Y = 7 is also the solution of the system of equations MX + 2ny = 6, then M = (), n = () 2x-y=3 3nx-my=11
• 20. It is known that the system of equations x + 2Y = 10, ax + by = 1 has the same solution as the system of equations BX + AX = 6, 2x-y = 5 It is known that the system of equations x + 2Y = 10, ax + by = 1 about X, y has the same solution as the system of equations BX + ay = 6, 2x-y = 5. Find the value of a, B