A jug full of whiskey contains 30% alcohol. 1/4th part of the jug is replaced by another whiskey. Now, the new mixture contains 40% alcohol. What is the percentage of alcohol in the 2nd whiskey?
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the percentage of alcohol in 2nd whiskey is 70%
3/4 part also 30%alcohol if the 2nd whiskey have 70% then it lose
10% to 1st part , 10% to 2nd part and 10% to third and it becomes 40% and other part becomes 40% too
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