A solution of honey and water is 28 liters, with honey and water in ratio 4:3. To this a 21 liter honey-water solution is added that has honey to water ratio as 2:1. Again a 51 liter honey-water solution that has honey to water ratio as 9:8 is added to this. After this 10 liter of the solution is replaced with pure honey. What is ratio of water to honey in the final mixture?
Answer: D
Total solution quantity 57+43 = 100
Out of 100 we are removing 10 liter (i.e. 10%)
so proportionately from honey we will remove = remove 5.7
& proportionately from water we will remove 10% remove = 4.3
Also, we add 10 liter pure honey
So now honey 57-5.7+10 = 61.3
& Water 43-4.3 = 38.7
water: Honey = 38.7 : 61.3 = 387:613