Question

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

1.5 lb
2 lb
3 lb

Answer 1

it is 15% of 20 pound water
15/100x20
3lb

Answer 2

The salt is in the water be 3 lb.

Explanation:

Formula

`Percentage = (Part\ value* 100)/(Total\ value)`

As given

Twenty pounds of a salt-water solution contains fifteen percent salt.

Let us assume that the salt is in the water be x.

Percentage = 15%

Total value = 20 pounds

Put in the formula

`15= (x* 100)/(20)`

`x = (15* 20)/(100)`

`x = (300)/(100)`

x = 3 pounds

or

x = 3 lb

Therefore the salt is in the water be 3 lb.