Some information about the waiting time oi patients at an A & E department is shown. Shortest wait 30mins
Lower quartile 3hrs
Longest wait
7hrs
Interquartile range 2hrs 15mins
Median wait 4h mins

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