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~~jokes?? in here?? really??
- Steel Arm
- Post #11,871
- Forum: Games and Fun Stuff
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International Kangroo Maths Contest
for question 10 i proceeded by elimination it cant be A, B and C when you look at it its either D or E it cannot be E since it says 'each piece consists of 4 cubes' the 4th black cube gotta be below the top right white cube which leaves us with D Ans is D) -
International Kangroo Maths Contest
here vertices are the 'corners' of the triangles lyk here the red points now you join one corner from each triangle to the other one in such a way that it doesnt cross any triangle you repeat this procedure like this thats the maximum number of lines you can put through vertices ans is D) 4 -
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International Kangroo Maths Contest
ok so at first there are 5 heads if u cut one, 5 new crop up which leaves you with 9 basically, each time you add 4 heads (removing 1 and adding 5 new) if 6 heads are cut you are kinda adding 6 x 4 heads, which makes 24 you add those to your starting 5 heads which gives 29 in the end ans (C) 29 -
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