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The quantity of water that should be added to reduce 10mI lotion containing 60% alcohol to a lotion containing 40% alcohol is

A. 5 ml

B. 8ml

C. 11 ml

D. 13ml

E. 10 ml

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সঠিক উত্তরঃ A. 5 ml

Explanation:

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The quantity of water that should be added to reduce 10mI lotion containing 60% alcohol to a lotion containing 40% alcohol is