Current location - Training Enrollment Network - Mathematics courses - How to do the last question on page 30 of the fifth grade mathematics exercise book of Jiangsu Education Press?
How to do the last question on page 30 of the fifth grade mathematics exercise book of Jiangsu Education Press?
Those who won the first and second prizes accounted for nine twentieth of the winners, and those who won the third prize accounted for 1 1/20.

The 19th and 20th winners won the second and third prizes, and 1/20 won the first prize.

Then1-11/20-1/20 = 8/20.

Related articles
  • Do you want math in computer major?
  • What are the shapes of buildings in the first grade of primary school mathematics?
  • The Process of Solving Congruence X Square =4 1(mod 64) Based on Information Security Mathematics ...
  • This math problem
  • What is the essential difference between the "clay pot rice" function of rice cookers and ordinary cooking?
  • Teacher Zhou of junior high school mathematics
  • Xiaoming and Xiaohong go to buy drinks, and they can change one of the four bottles. Xiaoming and Xiaohong bought a total of 10 bottles, so how many bottles should they buy?
  • How to Guide Rural Pupils to Preview Mathematics
  • I can't do math problems.
  • Hacker discrete mathematics

    • copyright 2024 Training Enrollment Network All rights reserved