From a vessel containing 100 litres of milk, 10 litres are drawn out and an equal amount of water is added. from the mixture, 10 litres is again drawn out and same quantity of water is added. what is the final ratio of milk and water?
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After 1st removal and addition,
Amount of milk is 100 - 10 = 90 and
Amount of water is 0 + 10 = 10.
Ratio of milk and water is 9:1
After removal of 10 litres from the mixture,
Amount of milk = 90 × 9/10 = 81
Amount of water = 90 - 81 = 9
After addition of 10 litres of water to the mixture,
Amount of milk = 81 (same)
Amount of water = 9 + 10 = 19
Final ratio is 81 : 19
Amount of milk is 100 - 10 = 90 and
Amount of water is 0 + 10 = 10.
Ratio of milk and water is 9:1
After removal of 10 litres from the mixture,
Amount of milk = 90 × 9/10 = 81
Amount of water = 90 - 81 = 9
After addition of 10 litres of water to the mixture,
Amount of milk = 81 (same)
Amount of water = 9 + 10 = 19
Final ratio is 81 : 19
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