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Find all pairs of consecutive even posit...

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

A

`(4,6),(6,8),(8,10),(10,12)`

B

`(6,8),(8,10),(10,12)`

C

`(6,8),(8,10),(10,12),(12,14)`

D

`(8,10),(10,12)`

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The correct Answer is:
(b)
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