Hi Oleg. This is my extra content. There are 2 task. First one is my old task for another project. It is Turkish but i transleted some. You can take a look all content or just check iframe, video and solving
The second one is a basic problem. I'm math teacher and i am math education master student. My thesis abouth problem solving. I want to make a non routine problem but it needs more time. So i just did a simple routine problem.
Hi, welcome to Sky Airport
Planes cannot approach the fuel station. That's why fuel is transported from the station to the planes by vehicles. But there is a problem. All the vehicles are faulty. Vehicle tanks are leaking fuel.
Fuel station
Let's take a closer look at the vehicles
All vehicles move at equal and constant speed. The tank of each vehicle can hold 3600 liters of fuel.Where they differ is in their leakage rates. This is the green vehicle. While the green vehicle is in motion, it leaks 1/4 of the fuel in its tank in time t.
This is the yellow vehicle. While the yellow vehicle is in motion, it leaks 2/5 of the fuel in its tank in time t.
This is the blue vehicle. While the blue vehicle is in motion, it leaks 2/3 of the fuel in its tank in time t.
There is a fuel transfer point on the road. At this transfer point, the vehicle heading to the plane can transfer its own fuel to the tank of the vehicle returning from the plane. This transfer point is available optionally.
For example, the yellow vehicle going to the plane transfers the fuel in its tank to the tank of the green vehicle returning from the plane.
t time
t time
It is time t for vehicles to reach the fuel transfer point from the fuel station. They also reach the plane from the transfer point in t time.
A vehicle can only refuel once at a fuel station.The tank of the pink plane you see needs to be filled. The tank of the pink plane holds 3600 liters of fuel. The pink plane's tank needs to be fully filled. We want to get this job done with the least amount of fuel wasted. Can you help us?
option 1: Three vehicles go from the fuel station to the plane and back once.
option 2: Green car goes to plane. While returning from the plane, it waits for the yellow vehicle at the transfer point. The yellow vehicle transfers its fuel to the green vehicle and returns. The green vehicle goes back to the plane and returns to the fuel station.
option 3: green car goes to plane. While returning from the plane, it waits for the blue vehicle at the transfer point. The blue vehicle transfers its fuel to the green vehicle and returns. The green vehicle goes back to the plane and returns to the fuel station.
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Video
Solving
Tom selling homemade lemode.Recipe : 2 lemon and 6 sugar cube per glass
1 lemon = 4 coins1 sugar cube = 1 coin
1 glass lemonade = 15 coins
How many coins does Tom earn from a glass of lemonade?
Calculate the cost of lemons and sugar cubes to make a glass of lemonade and find the total cost of a glass of lemonade
Select right grains of sugar cube and lemon per a glass of lemonade.
Tom sold 5 glasses of lemonade. How many coins did he earn?