To prepare a pickle for canning tomatoes, salt and sugar are required in a ratio of 1: 3, respectively.

To prepare a pickle for canning tomatoes, salt and sugar are required in a ratio of 1: 3, respectively. How many grams of salt is needed if only 80 grams of the mixture is needed for a two-liter jar?

From the analysis of this task, it follows that this task is to find a part of the whole. Let’s solve the problem in several steps:

1. Calculate the total number of parts of salt and sugar in the mixture for preserving tomatoes: 1 + 3 = 4 parts.

2. Let’s calculate how many grams is one part of the mixture, provided that the mass of the entire mixture is 80 grams: 80 ÷ 4 = 20 grams.

Answer: To prepare a pickle for canning tomatoes using 80 grams of a mixture of salt and sugar, you need to take 20 grams of salt.