Multiple choice Find the wrong number in the given series $225, 336, 447, 555, 669$ $225$ $447$ $555$ $669$ Reveal answer Fill a bubble to check yourself C Correct answer Explanation The pattern is adding 111 to each number: 225+111=336, 336+111=447, 447+111=558. But 555 is given instead of 558. 558+111=669. So 555 breaks the pattern and should be 558.