Medium
Find the wrong term in the series: 0.1, 0.01, 0.001, 0.00000001,......
Explanation
Explanation
The clear pattern here is that each term is the previous one divided by 10: 0.1 → 0.01 → 0.001 → the next term should be 0.0001. But the series shows 0.00000001 instead, which is way too small to follow the /10 pattern. So the term that breaks the pattern is 0.00000001, option (4).
PRO TIP
Re-check your working by substituting the answer back into the original question.