Chlorine bleach contains 5% chlorine. Samuel needs 3 L of 2% chlorine solution. How much water and how much 5% bleach should he mix?

Answer 1

X+Y = 3

0.05X + 0*Y = 0.02*3

0.05X = 0.06

5X = 6

X = 6/5

6/5 + Y = 3

Y = 3 - 6/5 = 15/5 - 6/5 = 9/5

6/5 liters of bleach, 9/5 liters of water