Question

What is the missing number 12,24,72,288 ______

Answer 1

The pattern in this is $n*(x+1)$, where n is the previous number in the sequence and x is the number you multiplied a number by to get the previous number. You start with twelve times two, then increase the number you multiply by by one.

$12*2=24 \\ 24*3=72 \\ 72*4=288$

$n*(x+1) \\ 288*(4+1) \\ 288*5 \\ 1440$

The next number in the sequence is 1440.