Question

Fill in the missing number to complete the pattern.18, 12, ,0

Answer 1

$18,12,_-,0$

using Ap formula,

$\begin{gathered} a+(n-1)d \\ a=18 \\ d=12-18=-6 \\ 18+(3-1)-6 \\ 18-12=6 \end{gathered}$

The missing term = 6