Question

# Identify the wrong number in the series :69, 55, 26, 13, 5

A
5
B
13
C
26
D
55

Solution

## The correct option is A 5Clearly, the given series, each term is one more than the product of the digits of the preceding term. Thus, $$(6\times 9)+1=55$$, $$(5\times 5)+1=26$$, $$(2\times 6)+1=13$$.So, 5 is wrong and must be replaced by $$(1\times 3)+1$$ i.e. 4.Hence, the answer is (A).Logical Reasoning

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