Question:medium

Find all pairs of consecutive even positive integers, both of which are larger than 5 such that their sum is less than 23.

Updated On: Jan 23, 2026
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Solution and Explanation

Let:

The smaller even positive integer be x.

Since the numbers are consecutive even integers,
the next integer is x + 2.

Given that both integers are larger than 5,
x > 5


Condition: Sum is less than 23

x + (x + 2) < 23

2x + 2 < 23

2x < 21

x < 10.5


Possible values of x:

x is an even positive integer such that

6 ≤ x < 10.5

So,
x = 6, 8, 10


Corresponding pairs:

(6, 8) → sum = 14
(8, 10) → sum = 18
(10, 12) → sum = 22


Final Answer:

The required pairs of consecutive even positive integers are:
(6, 8), (8, 10), and (10, 12)

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