At a football match, there were 250 more men than women. The number of children was twice the number of women, and the number of men was twice the number of women and children combined. how many people were at the match.​

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters