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

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

Answer 2

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

Hope this helped, if you need to find out how to get that answer for future references let me know in the comments! Have a good day!