Question

Brandon decided to make his own hand sanitize. To be effective and sanitizer

should cont 60% alicho
How much water coes Brandon need to make 250 ml of hand sanita?

Answer 1

Explanation:

The water has to be 100% - 60% = 40%

100% represents both water alcohol (I think that's what you meant).

40% of 250 = 40/100 * 250 = 10000/100 = 100 mL

So 100 mL = water

150 mL = alcohol.