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Let the quantity of juice and milk after taking out 33 ml of mixture be 6x ml and 5x ml respectively. So, quantity of milk after adding 20 ml milk = (5x + 20) ml ATQ, 6x:(5x + 20) = 6:7 Or, 5x + 20 = 7x So, 2x = 20 Or, x = 10 So, quantity of mixture after taking out 33 ml of mixture = 6x + 5x = 11x = 110 ml Initial quantity of mixture = 110 + 33 = 143 ml So, initial quantity of Juice = 143 X (6/11) = 78 ml
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