Question

Thirty pounds of a salt-water solution contains fifteen percent salt. How much salt is in the water?

1.5 lb
3 lb
4.5 lb

Answer 1

The choice of answer found above that best fits the answer to the question would be Option 3, 4.5lb.

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Answer 2

You need to find 15 percent of 30 lb.
To find a percent of a number, multiply the percent by the number.
First, divide the percent by 100, or move the decimal point of the percent to places to the left.

15% of 30 lb =
= 15% * 30 lb
= 0.15 * 30 lb
= 4.5 lb