144  Mixture
2

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If you mix 900 ml of 4% alcohol
and 400 ml of 7% alcohol, what %
solution will you get? (Nearest to the 10th.)



If you mix 400 ml of 3% alcohol
and 700 ml of 4% alcohol, what %
solution will you get? (Nearest to the 10th.)



If you mix 500 ml of 4% alcohol
and 400 ml of 9% alcohol, what %
solution will you get? (Nearest to the 10th.)



If you mix 800 ml of 3% alcohol
and 700 ml of 6% alcohol, what %
solution will you get? (Nearest to the 10th.)



If you mix 500 ml of 4% alcohol
and 300 ml of 5% alcohol, what %
solution will you get? (Nearest to the 10th.)



If you mix 900 ml of 7% alcohol
and 700 ml of 3% alcohol, what %
solution will you get? (Nearest to the 10th.)



If you mix 300 ml of 8% alcohol
and 500 ml of 3% alcohol, what %
solution will you get? (Nearest to the 10th.)



농도가 다른 7% 소금물 600 cc 와
4% 소금물 800 cc 를 섞으면, 소수점아래
한자리까지 농도가 몇% 소금물이 될까?



If you mix 900 ml of 7% alcohol
and 400 ml of 7% alcohol, what %
solution will you get? (Nearest to the 10th.)



If you mix 400 ml of 8% alcohol
and 600 ml of 6% alcohol, what %
solution will you get? (Nearest to the 10th.)



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144    4.9 3.6 6.2 4.4 4.4 ( 23.5 )   5.2 4.9 5.3 7 6.8 ( 29.2 )   [[ 52.7 ]]