Hi everyone! Help me please with mathematics... Where _____ it will be necessary to write to you! In kindergarten - 20 bicycles: three-wheeled and two-wheeled. At all bicycles - 55 wheels. How many two-wheeled bicycles in kindergarten? Finish offers in the given reasonings: let's assume what all bicycles of two wheel, then 20 bicycles will have ______ wheels. Will remain _____ wheels. It is possible to add wheels on 1 as bicycles cannot on a condition have more than three wheels. Means, _____ bicycles there will be three-wheeled, and the others - two-wheeled: them ________ pieces! help I beg!

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Let's allow all bicycles two-wheeled, then 20 bicycles will have 40 wheels. There will be 15 wheels. It is possible to add a wheel only on 1, on a condition. Means, 15 bicycles will be three-wheeled, and the others 25 two-wheeled )
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Answer add