It takes the same time to order 300 books. On average, classmate A has fewer 10 books per minute than classmate B, seeking the same result.
Learn to average the number of books per minute.
22. It is known that p is a real number.
p k q
… … …
3 16×3+26 2×2×6
4 16×4+26 2×3×7
5 16×5+26 2×4×8
6 16×6+26 2×5×9
7 16×7+26 2×6× 10
… … …
According to the rules in the table above, answer the following questions:
(1) What is the value of p, k=38?
(2) When the value of p is what, are the values of k and q equal?
19. During the May Day holiday this year, a travel agency received one-day and three-day tourists *** 1 600 and collected tours.
The cost is * * * 1.29 million yuan, including one-day tour per person 1.50 yuan and three-day tour per person 1.200 yuan. The travel agency picks up the plane.
How many tourists are there in the one-day tour and the three-day tour?
This is just an example.
You can find the module 12 questions to do (especially in Haidian, Xicheng), but you should find the recent exams in July, August and September, sort out the wrong questions in your module 12, do them, and then classify your error-prone questions into one category and do special exercises.