SOLUTION: If the sum of two consecutive integers is less than 42 , find the square of the largest possible integer.

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Question 1120913: If the sum of two consecutive integers is less than 42 , find the square of the largest possible integer.
Answer by ikleyn(52800) About Me  (Show Source):
You can put this solution on YOUR website!
.
n +  (n+1) < 42  ====>


2n + 1 < 42  ====>


n < 20.5  ====>


The largest possible integer in this pair (n,n+1) is 21 and its square is 441.