chore(i18n,learn): processed translations (#44851)

curriculum/challenges/japanese/10-coding-interview-prep/project-euler/problem-389-platonic-dice.md

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+---
+id: 5900f4f21000cf542c510004
+title: 'Problem 389: Platonic Dice'
+challengeType: 5
+forumTopicId: 302053
+dashedName: problem-389-platonic-dice
+---
+
+# --description--
+
+An unbiased single 4-sided die is thrown and its value, $T$, is noted.
+
+$T$ unbiased 6-sided dice are thrown and their scores are added together. The sum, $C$, is noted.
+
+$C$ unbiased 8-sided dice are thrown and their scores are added together. The sum, $O$, is noted.
+
+$O$ unbiased 12-sided dice are thrown and their scores are added together. The sum, $D$, is noted.
+
+$D$ unbiased 20-sided dice are thrown and their scores are added together. The sum, $I$, is noted.
+
+Find the variance of $I$, and give your answer rounded to 4 decimal places.
+
+# --hints--
+
+`platonicDice()` should return `2406376.3623`.
+
+```js
+assert.strictEqual(platonicDice(), 2406376.3623);
+```
+
+# --seed--
+
+## --seed-contents--
+
+```js
+function platonicDice() {
+
+  return true;
+}
+
+platonicDice();
+```
+
+# --solutions--
+
+```js
+// solution required
+```