A chemical solution contains 8% acid. if there is 15 ml acid in the solution. what is the volume of the solution?

1. 187 ml
2. 188 ml
3. 197 ml
4. 187.5 ml

Let x be volume of the solution

8/100 × x = 15.

8/100 = 15/x. Cross multiplication.

8x = 15×100.

x = 15 × 100/8.

= 187.5 ml.