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12-09-2018
Mathematics

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find the lesser of two consecutive integers with a sum greater than 15

Respuesta :

16-09-2018

Let n and n+1 be two consecutive integers. Their sum is n+n+1=2n+1.

Then if a sum is greater than 15, then

2n+1>15,

2n>15-1,

2n>14,

n>7.

The smallest n, such that n>7 is n=8, then n+1=9.

Answer: 8, 9.

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