Question 16
Select the option that will correctly replace the question mark (?) in the series.
102, 98, 82, 46, ?
Solution
Squares of consecutive even natural numbers are subtracted.
102 - $$(2)^2$$ = 98
98 - $$(4)^2$$ = 82
82 - $$(6)^2$$ = 46
46 - $$(8)^2$$ = -18
=> Ans - (D)
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