solve 15 or 16 number of that paper
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16) let x litres of water be added to 1125l of 45% solution of acid,
then total volume of mixture = x + 1125
and acid content = 45% of 1125 = 45×1125/100
now according to question, final acid content should be less than 30% and more than 25%
So, 25% of (x + 1125) < 45%of 1125 < 30% of (x + 1125)
from here x<900 and x>562.5
16) let x litres of water be added to 1125l of 45% solution of acid,
then total volume of mixture = x + 1125
and acid content = 45% of 1125 = 45×1125/100
now according to question, final acid content should be less than 30% and more than 25%
So, 25% of (x + 1125) < 45%of 1125 < 30% of (x + 1125)
from here x<900 and x>562.5
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kamleshgupta:
16 ka
solve 16 plz
16
16 ka solution. .
done
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