Question
A 480-liter blend contains soap and water in a 5:3
ratio. Adding 60 liters of soap and (6u + 30) liters of water changes the ratio to 6:5. Find the ratio of soap to water if '8u' liters of water are further added.Solution
ATQ, Initially 
Finally, quantity of soap = 300+60=360 300 + 60 = 360 liters, Quantity of water = 180+6×15+30+8×15=390 180 + 6 × 15 + 30 + 8 × 15 = 390 liters.
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