Series and Odd Man out Practice Test 1

Concept:In a number series, the odd term is the one that does not follow the common pattern.Explanation:Check the given series: $25, 39, 43, 52, 61$.Find the differences: $39 - 25 = 14$, $43 - 39 = 4$, $52 - 43 = 9$, $61 - 52 = 9$.The differences are not constant, so the pattern is broken.If the series increases by $9$ each time, the expected terms are:$25 + 9 = 34$$34 + 9 = 43$$43 + 9 = 52$$52 + 9 = 61$So the correct series should be $25, 34, 43, 52, 61$.Here, $39$ is incorrectly placed in place of $34$.Answer:The odd term is $39$.