One sort of fertilizer contains 10% nitrogen , and the other fertilizer contains 19% nitrogen. How much do you need to take of both sorts of fertilizer so you can get 450 kilos of mixture which contains 14 % of nitrogen .
P.S. There might be grammar mistakes , sorry .
One sort of fertilizer contains 10% nitrogen , and the other fertilizer contains 19% nitrogen. How much do you need to take of both sorts of fertilizer so you can get 450 kilos of mixture which contains 14 % of nitrogen .
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