加拿大华人论坛 加拿大留学移民省提名技术移民 - 请帮解答两道孩子的数学题
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1.find the smallest multiple of 6 such that neither 6n-1 nor 6n+1 is prime.2.if there is enough water for 40 people to last 45 days or 50 people to last 40 dayshow much days would the water last for 60 people?
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回复: 请帮解答两道孩子的数学题看不懂，英文
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回复: 请帮解答两道孩子的数学题1.find the smallest multiple of 6 such that neither 6n-1 nor 6n+1 is prime.2.if there is enough water for 40 people to last 45 daysor 50 people to last 40 dayshow much days would the water last for 60 people?点击展开...The first key is that n is equal to 12 which is 2 times of 6;The second one, I am not sure and guess that it is 35 days (equal difference numbers?).
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