IBPS PO Mains 5 Nov 2023 Paper

Concept:Find the missing term $A$ from the given number series pattern, then verify each statement.Explanation:Given series: $808, 520, 352, 232, A, 160$.Subtract consecutive terms: $808-520=288=17^2-1$,$520-352=168=13^2-1$,$352-232=120=11^2-1$.So the next difference is $7^2-1=48$.Hence, $A = 232 - 48 = 184$.Check the statements:I: $184 = 21 \times 8 + 16$, so $184$ is not divisible by $21$. Statement I is incorrect.II: Average of $A$ and $200$ is $\frac{184+200}{2} = \frac{384}{2} = 192$. Statement II is correct.III: $A = 184$ is an even number, so it is not a prime number. Statement III is incorrect.Answer:Only statement II is correct. Thus, the correct option is E. Only II.