exam
Maths Puzzle
Numerical Ability
How many liters of 80% alcohol must be added to 10 liters of a 50% solution to obtain a 70% solution?
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exam Other Question
A recent study shows that babies who weigh less than 5.5 pounds at birth are 40% more likely to develop high blood pressure as adults. If 12 babies who weighed less than 5.5 pounds
5-(2/x-6)=10-2x/x-6