Who was responsible for inventing the first working four-stroke engine?
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Answer:210ml, 140 ml, 60%
Step-by-step explanation:
Given
Juli has 200 ml of 35% hand sanitizer
Sarah has 150 ml of 85% hand sanitizer
The mixture has 60% con. i.e. 60 % is Alcohol and 40 % water
The final volume of the mixture =200+150=350 ml
Now, 60% of 350 ml=
So, pure Alcohol is 210 ml
Water in the final mixture=
The concentration of Alcohol is 60%