Question

Salinity is a measure of the salt content of a body of water. One researcher measures the salinity of the Indian Ocean as 3.2%. Another researcher measures the salinity of the Dead Sea as 34%. A bucket of water from the Indian Ocean contains 56 grams of salt. How much salt is contained in the same amount of water from the Dead Sea? How many grams?

Justify your answer

Answer 1

Divide each percentage to find a multiplier:

34/3.2 = 10.625

The Dead Sea is 10.625 times saltier than the Indian Ocean.

So if Indian Ocean bucket = 56 grams of salt

Multiply that by our multiplier.

56 * 10.625 = 595 grams

The answer is 595 grams

Answer 2

The amount of salt that is contained in the same amount of water taken from the Dead Sea is; 595 g

We are given;

Salinity of Indian Ocean = 3.2%

Salinity of dead sea = 34%

Let us find how much saltier is the dead sea than the Indian ocean by;

34%/3.2% = 10.625 times more salty than the Indian ocean.

Now, we are told that A bucket of water from the Indian Ocean contains 56 grams of salt.

Thus, if the same bucket of water is taken from the dead sea, the mass of salt will be;

56 × 10.625 = 595 g of salt.

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