exam
Maths Puzzle
Numerical Ability
find the first four terms of the sequence a)a n below =n^3 + 1 B) a 1below = 4; a n below a =3a n-1 below + 1
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log(3)9
Evaluate:
How many liters of a 20% alcohol solution and a 10% alcohol solution should be mixed to obtain 50 liters of a 12% alcohol solution?