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title: Mixed challenge: reasoning stories — a lesson of Mova's school · trees and pragmatics
description: «Mixed challenge: reasoning stories», a lesson of the lessons course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: Each story here is one of the kinds met before: a price per thing, a speed, ages, a pattern, a ratio, an average, or working backwards.
---

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# Mixed challenge: reasoning stories

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Lesson 120 of the lessons course of Mova's primary school: 4 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0).

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- [0](https://md.mova.elamur.ai/free/en/corpora/school/lessons/120-mixed-review/0/) — Each story here is one of the kinds met before: a price per thing, a speed, ages, a pattern, a ratio, an average, or working backwards.
- [1](https://md.mova.elamur.ai/free/en/corpora/school/lessons/120-mixed-review/1/) — First ask: what kind of story is it?
- [2](https://md.mova.elamur.ai/free/en/corpora/school/lessons/120-mixed-review/2/) — Then use its rule: price of one × how many; speed × hours; the difference of ages never changes.
- [3](https://md.mova.elamur.ai/free/en/corpora/school/lessons/120-mixed-review/3/) — Example: 3 kites cost 15 dollars, so one costs 15 / 3 = 5 and 6 kites cost 6 × 5 = 30 dollars.

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