991  Mixture
2

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If you mix 900 ml of 5% alcohol
and 700 ml of 3% alcohol, what %
solution will you get? (Nearest to the 10th.)



If you mix 700 ml of 7% alcohol
and 400 ml of 4% alcohol, what %
solution will you get? (Nearest to the 10th.)



If you mix 800 ml of 9% alcohol
and 600 ml of 7% alcohol, what %
solution will you get? (Nearest to the 10th.)



If you mix 400 ml of 8% alcohol
and 400 ml of 8% alcohol, what %
solution will you get? (Nearest to the 10th.)



If you mix 800 ml of 9% alcohol
and 500 ml of 7% alcohol, what %
solution will you get? (Nearest to the 10th.)



If you mix 800 ml of 7% alcohol
and 400 ml of 3% alcohol, what %
solution will you get? (Nearest to the 10th.)



If you mix 900 ml of 8% alcohol
and 700 ml of 8% alcohol, what %
solution will you get? (Nearest to the 10th.)



농도가 다른 6% 소금물 500 cc 와
7% 소금물 500 cc 를 섞으면, 소수점아래
한자리까지 농도가 몇% 소금물이 될까?



If you mix 900 ml of 9% alcohol
and 600 ml of 8% alcohol, what %
solution will you get? (Nearest to the 10th.)



If you mix 700 ml of 4% alcohol
and 300 ml of 6% alcohol, what %
solution will you get? (Nearest to the 10th.)



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991    4.1 5.9 8.1 8 8.2 ( 34.3 )   5.7 8 6.5 8.6 4.6 ( 33.4 )   [[ 67.7 ]]