Find all the pairs of consecutive even positive integers, both if which are larger than 5 such that sum is less than 23
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Given:
- Positive integers, both if which are larger than 5 such that sum is less than 23.
To Find:
- Find all the pairs of consecutive even positive integers.
Solution:
Let the smaller of the two consecutive even positive integers be x.
∴ Other integer = x + 2
According to Question, both the integers are larger than 5
∴ x > 5 ____(i)
According to Question, the sum of two integers is less than 23.
∴ x + (x + 2) < 23
2x + 2 < 23
x < 21/2
x < 10.5 ____(ii)
Thus, From (i) and (ii);
We have x is an even number and it can take values 6, 8 and 10
Hence,
- Possible pairs are (6, 8), (8, 10) and (10, 12).
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