Saturday, November 16, 2013

Find all pairs of consecutive even integers whose sum is greater than 73 but less than 79.

73 < n+n+2 < 79 
73-2 < 2n < 79-2 
71/2 < n < 77/2 
but n is an integer so... 
n = 36, or 38 
that makes our pairs 36, 38 or 38,40

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