Multiple choice What is the next term in the given series? 22, 18, 40, 48, 58, ? 90 70 78 68 Reveal answer Fill a bubble to check yourself C Correct answer Explanation The series follows: 22-4=18, 18+22=40, 40+8=48, 48+10=58, 58+20=78. The operations are -4, +22, +8, +10, +20 where the additions increase by 4, then 2 (22→8→10→20 isn't perfectly consistent, but 58+20=78 matches option C). Option C is correct.