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							|  |  |  | id: 5900f45d1000cf542c50ff6f | 
					
						
							|  |  |  | title: 'Problem 240: Top Dice' | 
					
						
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										 |  |  | challengeType: 5 | 
					
						
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										 |  |  | forumTopicId: 301887 | 
					
						
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										 |  |  | dashedName: problem-240-top-dice | 
					
						
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										 |  |  | # --description--
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										 |  |  | There are 1111 ways in which five 6-sided dice (sides numbered 1 to 6) can be rolled so that the top three sum to 15. Some examples are: | 
					
						
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										 |  |  | $$\begin{align} | 
					
						
							|  |  |  |   & D_1,D_2,D_3,D_4,D_5 = 4,3,6,3,5 \\\\ | 
					
						
							|  |  |  |   & D_1,D_2,D_3,D_4,D_5 = 4,3,3,5,6 \\\\ | 
					
						
							|  |  |  |   & D_1,D_2,D_3,D_4,D_5 = 3,3,3,6,6 \\\\ | 
					
						
							|  |  |  |   & D_1,D_2,D_3,D_4,D_5 = 6,6,3,3,3 | 
					
						
							|  |  |  | \end{align}$$ | 
					
						
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							|  |  |  | In how many ways can twenty 12-sided dice (sides numbered 1 to 12) be rolled so that the top ten sum to 70? | 
					
						
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										 |  |  | # --hints--
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										 |  |  | `topDice()` should return `7448717393364182000`. | 
					
						
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										 |  |  | ```js | 
					
						
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										 |  |  | assert.strictEqual(topDice(), 7448717393364182000); | 
					
						
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										 |  |  | ``` | 
					
						
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										 |  |  | # --seed--
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										 |  |  | ## --seed-contents--
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							|  |  |  | ```js | 
					
						
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										 |  |  | function topDice() { | 
					
						
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										 |  |  |   return true; | 
					
						
							|  |  |  | } | 
					
						
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										 |  |  | topDice(); | 
					
						
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										 |  |  | ``` | 
					
						
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										 |  |  | # --solutions--
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							|  |  |  | ```js | 
					
						
							|  |  |  | // solution required | 
					
						
							|  |  |  | ``` |