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Maths Puzzle
Numerical Ability
If they give you a problem that said dreaw on the number like that flooling set [-2,7) upside down U [5,10]
what does the u or upside down u mean
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book Other Question
An 8-inch-square picture is to be enlarged so it covers an area of 100 inches.How much longer will each side of the enlarged picture be?
Hi. My problem is:
How many planes are determined by four points, no three of which are collinear?
Thanks a lot!