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subtract $1$ to first number to get second number and add $2$ to second number to get third number and this process will continue.

$22-1=21$

$21+2=23$

 

$23-1=22$

$22+2=24$

 

$24-1=23$

$23+2=25$

 

Hence,Next Number will be $25$.

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The pattern is as follows:

  • $22-1=21$
  • $21+2=23$
  • $23-1=22$
  • $22+2=24$
  • $24-1=23$
  • $23+2=25$

So the next term will be $25$

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