Find the wrong term in the following series: 5000, 250, 100, 30, 12, 6, 3.6

The pattern is: divide by 20, then divide by 2.5, alternating. 5000/20 = 250, but 250 should be followed by 250/2.5 = 100. Checking: 100/20 = 5 (not 30), 5/2.5 = 2 (not 12), etc. The pattern breaks. The correct term at position 2 should be 5 (not 250), giving the sequence: 5000, 5, 100, 30, 12, 6, 3.6. The claimed answer (B: 250) is correct - 250 is the wrong term.