3 years ago

The sum of 3 consecutive odd numbers is 51. What is the second number in this sequence?

1 answer:

tatiyna3 years ago

5 0

(2n +1) + (2n + 3) + (2n + 5) = 51
6n + 9 = 51
6n = 42
n = 7
numbers are 15 17 and 19

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