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title: The price of one, then the price of many — a lesson of Mova's school · trees and pragmatics
description: «The price of one, then the price of many», a lesson of the lessons course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: When things cost the same each, first find the price of one: divide the total price by how many were bought.
---

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# The price of one, then the price of many

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Lesson 111 of the lessons course of Mova's primary school: 3 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/111-unit-price/0/) — When things cost the same each, first find the price of one: divide the total price by how many were bought.
- [1](https://md.mova.elamur.ai/free/en/corpora/school/lessons/111-unit-price/1/) — Then multiply the price of one by the new number of things.
- [2](https://md.mova.elamur.ai/free/en/corpora/school/lessons/111-unit-price/2/) — If 4 pens cost 12 dollars, one pen costs 12 / 4 = 3 dollars, so 7 pens cost 7 × 3 = 21 dollars.

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