Answer:
Salt solution of scientist A was more concentrated.
Step-by-step explanation:
Scientist A:
Amount of water = 7 pints
Amount of Salt = 1 kilogram
Since, 1 kilogram = 2.2 pounds, we can say that scientist A dissolved 2.2 pounds of salt in 7 pints of water
Scientist B:
Amount of water = 7 pints
Amount of salt = 2.0 pounds
The amount of water used in both cases is the same. So whoever used more amount of salt made a concentrated solution. From above numbers we can see that scientist A used more salt to make the solution.
Hence, the salt solution of scientist A was more concentrated.
