2. Driver A drives 45 kilometers per hour, and driver B is seven tenths slower than driver A. How fast does driver B drive?
3. A triangular plot with a base of 5 1 m and a height of 10/ 17. What's your height? What is the area of this land?
There are 360 trees planted in the fourth grade, which is 7/6 times that of the fifth grade and 4/7 times that of the third grade. How many trees are planted in the third grade?
A washing machine factory plans to produce 504 washing machines in May. In fact, it was completed 5/9 in the first half of the year and 2/3 in the second half. How many washing machines did it actually produce this month?
6. In order to celebrate the National Day, the students drew a picture with a length of 100 meters. Two fifths of the total length of the sixth grade painting.
(1) Class 1, Grade 6 got one eighth of Grade 6. How many meters did Class One, Grade Six draw?
(2) Draw 15m in Grade Five, in which Class One in Grade Five draws one fifth, and the drawing length in Grade Five is one fraction of that in Class One in Grade Six.
7. Bus 180, one sixth more than buses. How many buses are there?