In a mixture of milk & water, 20 litres water is mixed due to which ratio changes from 5 : 4 to 1 : 4. Find initial quantity of mixture. (in litres)
let initial quantity of milk be 5x litres & water be 4x litres. ATQ, 5x/4x+ 20 = 1/4 20x = 4x + 20 ⇒ x = 1.25 Initial quantity of mixture = 5x + 4x = 11.25 liters
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