Respuesta :
110/5 = 22, that is the middle number
now use the 2 numbers below that and the 2 numbers above that
so you have 20 + 21 + 22+ 23+24 = 110
the 4th number is 23
110/5 = 22, that is the middle number
now use the 2 numbers below that and the 2 numbers above that
so you have 20 + 21 + 22+ 23+24 = 110
the 4th number is 23