Current location - Training Enrollment Network - Mathematics courses - What grade is the application problem of primary school mathematics engineering published by People's Education Publishing House?
What grade is the application problem of primary school mathematics engineering published by People's Education Publishing House?
What grade is the application problem of primary school mathematics engineering published by People's Education Publishing House?

Brief introduction of applied mathematics courseware for sixth grade engineering problems in primary schools published by People's Education Press

1, a project takes 5 days to complete, how much is it completed on average every day? 2, a project, completed every day, a few days to complete the whole project? A section of 14 highway is 30 kilometers long. Team A completed the repair alone on 10, and team B completed the repair alone on 15. How many days does it take for two teams to repair together? 30÷(30÷ 10+30÷ 15) requires joint operation time, and the sum of () work efficiency and the length of a section of highway is 30 kilometers. Team A completed the repair alone on 10, and team B completed the repair alone on 15. How many days does it take for two teams to repair together? A section of highway is 30 kilometers long. Team A completed the repair alone on 10, and team B completed the repair alone on 15. How many days does it take for two teams to repair together? 1, a project 1, a project, Party A will do it for 20 days and Party B will do it for 30 days. If the two teams cooperate, every day is over.