1. how many litres of water will have to be added to 1125 liters of the 45 % solution of acid so that the resulting mixture will contain more than 25% but less than 30% acid content
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45 25
\ /
30
/ \
30-5:45-30
25 : 15
5 : 3
5->1125
1->225
so 3->225×3=675 ltrs of water should mixed
\ /
30
/ \
30-5:45-30
25 : 15
5 : 3
5->1125
1->225
so 3->225×3=675 ltrs of water should mixed
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