**Given** 11^{th} term of the Fibonacci sequence is 89 and 13^{th} term of is 233

We know that a number in Fibonacci sequence is got by adding the previous two consecutive numbers.

11^{th} term + 12^{th} term = 13^{th} term

89 +12^{th} term =233

∴ 12^{th} term = 233 – 89 = 144

**∴ 12**^{th} term in Fibonacci sequence = 144.