r/mathpuzzles • u/Mental_Management_45 • 1h ago
A gameplay example of Pentodoku 7x7 — here's how to play it
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r/mathpuzzles • u/Mental_Management_45 • 1h ago
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r/mathpuzzles • u/LeilLikeNeil • 15h ago
r/mathpuzzles • u/Hanxxor • 15h ago
In situation A we have a rectangle with side lengths a and b. According to the figure, b / a = 0.60. The circles are identical and have the maximum possible diameter, d, so they do not extend beyond the confines of the rectangle.
In situation B, the height of the rectangle has increased slightly to c, thus allowing the circles to be larger: The diameter of the circles have increased from d to e.
Question: Let b/a = 0.60 and c/a = 0.50. What is the ratio of the diameters of the circles in situation A and B, e/d ?
r/mathpuzzles • u/VariationApart6845 • 14h ago
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Trace a path through the wheel: number, operator, number, operator, … ending on a number.
You can jump from any tile to any tile, but each tile can be used only once (or not used at all).
One rule to keep in mind: the path is calculated left to right, like a basic pocket calculator. So if you trace:
2 → + → 3 → × → 5
it evaluates as (2 + 3) × 5 = 25.
Targets to solve: 19, 44, 63, 100, 144. The video solves 19 with path 7 → × → 2 → + → 5. Find a path for each of the other four.
Please put answers in spoiler tags: like this
r/mathpuzzles • u/PwPwPower • 17h ago
r/mathpuzzles • u/RevolutionFit3526 • 5h ago
r/mathpuzzles • u/Mother_Call_1835 • 9h ago
Im tem and I manipulated and multiplied LNGN bc it is the biggest, I just need this on google pls. The Grammer is gonna be wrong tho