If 3.64g of sand is separated from 5.25g of a mixture of salt and sand what is the percentage of sand in the sample

Total weight of the mixture of sand and salt = 5.25 g

Weight of sand separated = 3.64 g

Weight of the salt in the mixture = (5.25 - 3.64) g

= 1.61 g

Then the percentage of sand in the sample = [ (3.64/5.25) * 100] percent

= 69.33%

So the percentage of sand in the total mixture of sand and salt is 69.33%.