297, 252, 207, 162, ?
297, 252, 207, 162, 117 , 72 , 27hope it helps
297 - 252 = 45...so common difference is 45252 - 45 = 207207 - 45 = 162162 - 45 = 117 <==== and u just keep on subtracting 45 and u will find ur next numbers