Answer: I think it's 4.5
Step-by-step explanation: 27÷6=4.5
20% of 160,000 is 3,200. Divide that by 72 months you get $44.44 with a never ending stream of 4s. So you can pay $44.44 each month for six years and be 32 cents short, or you can pay $44.45 each month for six years and have 40 cents leftover. I wasn't sure which answer you were looking for so I gave you both. Hope that helps! :)
So 2% is 2/100. That would be 0.02.
5 liters (L) of 30% bleach solution contains 0.3×(5 L) = 1.5 L of bleach.
3 L of 50% bleach contains 0.5×(3 L) = 1.5 L of bleach, too.
Combined, you would have 8 L of solution containing 1.5 L + 1.5 L = 3 L of bleach, so the concentration of bleach is
(3 L) / (8 L) = 0.375 = 37.5%