Archive for the 'Math' Category

17AprMy brother won 1st place in Rubik’s 4×4x4

Rubix Champ

My little brother has been cubing since January of this year. From him, I learned that a Rubiks cube can be solved by just learning some formulas, or commonly known as algorithms among cubers. And just last month, he competed in a Rubik’s cube event held at Asia Pacific College. The cubes provided were of low quality and not lubricated, which made it more challenging. But even so, he finished the 4×4x4 (Rubik’s Revenge) in 2:44 (2 minutes and 44 seconds), which won him 1st place in the 4×4x4 speed solving category. He also ranked 2nd place in 3×3x3 speed solving, where in he finished the cube in 2:28 (2 minutes and 28 seconds). But when he is using a high-quality lubricated cube, he can solve a 3×3x3 in 1:30 at most. Continue reading ‘My brother won 1st place in Rubik’s 4×4×4′

26FebMath Problem

Nothing really interesting here. I was just thinking of the numbers 1 and 7 and the word reciprocate and math. Don’t ask why, I won’t tell. Hehe. I don’t know how to connect the word reciprocate to 1, 7, and math. Good thing there’s such a term as reciprocal. So I challenged myself to come up with a math problem using those numbers and the result should be somewhat related to secret. Try to solve the math problem I created to understand what I mean.

Reciprocal of 7, multiplied by 1000, round off to the nearest one (1).

I love math!


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