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Maths Puzzle
Numerical Ability
3x-2y=4x+5?
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Two trains start form the same place at the same time heading in directly opposite directions. One train averages 65 mph, and the other train averages 75 mph. After how long will
Simplify the following expression as much as possible:
t^2 square root of 8tx^2 minus x square root of 18t^5