2. Cheetah is the fastest animal in the world, and its speed can reach 1 10km, which is more than 30km twice that of elephant. How many kilometers per hour can an elephant reach at the earliest?
3. Two identical pumps can irrigate 65,438+0.2 hectares in 3 hours. 1 How many hectares can one pump irrigate per hour?
Swift is the fastest bird in a long flight. Swift can fly 5 10 km in 3 hours, and homing pigeons can fly 74 km per hour. How many times faster does Swift fly than homing pigeons?
The distance between cities A and B is 360 kilometers. The truck travels from city A to city B at a speed of 32 kilometers per hour. A bus travels from B to A at a speed of 48 kilometers per hour. How many hours did two cars meet on the road?
Xiaoming's home and Xiaohong's home are 560 meters apart, on both sides of the school. After school, they get home at the same time at 7 minutes after school. Xiaoming walks 45 meters per minute. How many meters does Xiaohong walk per minute on average?
7. The students collected 6 cans and 9 beverage bottles, each with the same price. They sold it to the recycling station and got 1.5 yuan. How much is each bottle?
8. Boss Zhang has 49 kilograms of peanut oil, and each peanut oil barrel can hold up to 4.5㎏ peanut oil. How many barrels of peanut oil should he prepare at least? (Numbers are reserved as integers)
9, Liu Yang from home to the Children's Palace, 4.5 kilometers per hour, 0.6 hours to arrive. If you only walk 3 kilometers per hour, how many hours will it take to get to the Children's Palace? 10, Hualin's mother went to the market to buy fruit. First, she spent 3.5 yuan to buy 2.5 Jin of apples and is going to buy 3 Jin of oranges. The unit price of oranges is 0.6 times that of 65438+ apples. How much should she pay for oranges?
10, 1 ha pine forest secretes 30 kg of fungicide every day, and 24.5 ha pine forest secretes 3 1 kg of fungicide every day?