exam
Maths Puzzle
Numerical Ability
How many liters of an 11% alcohol solution should be mixed with 60 liters of a 5% alcohol solution to obtain a mixture that is 7% alcohol?
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exam Other Question
If "a" is a negative number find
(a)+a+(-2a)+(-a)
her score so far after 15holes is -2. if par for 15 holes is 63, what is her score?