1. There is a batch of cloth. After using part of it to make clothes, there are still 3 / 4 of it left, which is just 24 meters. How many meters are there in this batch? 2. The number of pine trees is 45 less than that of poplar trees. The number of poplar trees is one ninth more than that of pine trees. How many pine trees are there? 3. 5 / 7 of a book has been read, which is exactly 105 pages. How many pages of this book have not been read? 4. Xiao Ming poured a glass of milk, first drank 1 / 2 of it, then filled it with coffee, then drank 1 / 3 of it, then filled it up, and finally drank all the milk. Then did you drink more milk or coffee?

1. There is a batch of cloth. After using part of it to make clothes, there are still 3 / 4 of it left, which is just 24 meters. How many meters are there in this batch? 2. The number of pine trees is 45 less than that of poplar trees. The number of poplar trees is one ninth more than that of pine trees. How many pine trees are there? 3. 5 / 7 of a book has been read, which is exactly 105 pages. How many pages of this book have not been read? 4. Xiao Ming poured a glass of milk, first drank 1 / 2 of it, then filled it with coffee, then drank 1 / 3 of it, then filled it up, and finally drank all the milk. Then did you drink more milk or coffee?

There is a batch of cloth. After using part of it to make clothes, there are still 3 / 4 of it, just 24 meters left. How many meters are there in this batch? 24 △ 3 / 4 = 32 (meters) 2. There are 45 less pine trees than poplar trees, 1 / 9 more poplar trees than pine trees, and how many pine trees? 45 △ 1 / 9 = 405 (trees) 3