1 .20 black rabbits, and the number of white rabbits is 1/4. How many white rabbits are there?
2. There are 20 black rabbits, and the number of white rabbits is more than that of black rabbits 1/4. How many white rabbits are there?
3. There are 20 black rabbits, the number of which is 65438+ 0/4 of the number of white rabbits. How many white rabbits are there?
4. There are 20 black rabbits, and the number of black rabbits is more than that of white rabbits 1/4. How many white rabbits are there?
A duck weighs 3 kilograms, and the weight of a chicken is 2/3 of that of a duck. How much does this chicken weigh?
6. A volleyball is priced in 60 yuan, and the price of basketball is 5/6 of that of volleyball. What is the price of basketball?
7. There is 18 yuan in Xiao Liang's savings box, and Xiaohua's savings is 5/6 that of Xiao Liang. How much did Xiaohua save?
8. Xiaohong has 36 stamps, and the stamps in Xiao Xin are six fifths of Xiaohong's. How many stamps are there in Xiao Xin?
9. Grade six students collected 180 cans, which is 3/5 of that collected by grade five. How many cans did they collect in the fifth grade?
10, two children jump rope, Xiaoming jumped 100 times, Xiaoming jumped 5/8 of Xiao Qiang's jump, how many times did Xiaoming jump?
1 1, Xiaohong weighs 42kg, which is 2/3 of Xiao Ya's weight. What's the weight of Xiao Ya?
12, long-distance running exercise, Xiao Xiong ran 6 kilometers, which is 3/5 of that of Xiao Yong. How many kilometers did Xiao Yong run?
13, Xiao Wang read a book, reading 26 pages in the morning and reading 2/7 of the whole book. How many pages are there in the whole book?