15 lts of water containing 20% alcohol, then added 5 lts of
water. What is % alcohol.
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Answer Posted / pawan
15 litre water contains 20% alcohal ie. 12 (water)+ 3
(alcohol).
after adding 5 liter water it becomes 12+5=17 (water)& 3
(alc.).
ie. 17:3 and answer will be 85:15. ie. 15%.
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