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If each term in the sum A1+A2+...+ An is either 7 or 77 and
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16 Apr 2006, 03:14

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If each term in the sum A1+A2+...+ An is either 7 or 77 and the sum equals 350, which of the following could be equal to n?

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If each term in the sum A1+A2+...+ An is either 7 or 77 and the sum equals 350, which of the following could be equal to n?

I too get multiple values.. Source of the Q please?
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If each term in the sum A1+A2+...+ An is either 7 or 77 and the sum equals 350, which of the following could be equal to n?

7 = x, 77 = 11x, 350= 50x

350= 50x = 11x+(50-11) x = 11x+ 39x, n = 40 350= 50x = 11 (2) x+ [50-11 (2) x] = 11 (2) x+ 28x, n = 30.

so on...... n is 40

:wave :beer you rule Pro))

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Re: If each term in the sum A1+A2+...+ An is either 7 or 77 and
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27 Jul 2018, 06:54

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