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Maths Puzzle
Numerical Ability
The Roman poet Virgil was born in 70 b.c. How old was he on his birthday in 42 b.c.?
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can you please answer and explain step by step to this problem
12-[20-2(6 to the second power, divided by 3x2 to the second power)]
Show that the statement is sometimes true. Then give a counterexample to show that the statement is not always true.
|x|=x
|-x|=x
|x+y|=|x|+|y|