Prove for positive integer number written as sum of terms
Prove, for each positive integer n, the number n! can be written as a sum of n terms n!=a1+a2+a3+.....+an, where 1=a12<n and all the numbers a1, a2,....., an are factors of n!. (Hint: induction, naturally.)
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There are 1000 natural numbers a1, a2,...., a1000. Prove that of the numbers 3a1, 3a2,...., 3a1000, there must be 56 of them which have the same remainder when divided by 19.
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Prove, for each positive integer n, the number n! can be written as a sum of n terms n!=a1+a2+a3+.....+an, where 1=a1<a2<<an and all the numbers a1, a2,....., an are factors of n!. (Hint: induction, naturally.)
Determine the distance from the surface of the earth to the surface of the moon.
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The hourly workers' wages, food costs, and supplies costs are completely variable; the other costs are completely fixed. The cafeteria served 11,400 meals during September.
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