Grandma pickled salted eggs and put 500 grams of salt into 2000 grams of water. What is the salt content in the water? What is the percentage of salt in brine?

Answer: Salt is a quarter of water, and salt accounts for a fifth of salt water.

6. The carpenter used a piece of wood to make the next paragraph at a time. He used it four times to divide a piece of wood into small pieces with the same length. How much does two small pieces of wood account for this piece of wood?

Answer: Four times * * * sawed five sections, so two small pieces of wood accounted for two-fifths of this piece of wood?