Multiple choice Choose the wrong term in the given series. $60, 55, 45, 30, 20, -15$ 20 45 30 5 Reveal answer Fill a bubble to check yourself A Correct answer Explanation 60-5=55, 55-10=45, 45-15=30, 30-20=10 (not 20), 10-25=-15. The term 20 breaks the pattern of subtracting 5,10,15,20,25.