Question 4

Select the option that will correctly replace the question mark (?) in the series.
107, 103, 87, 51, ?

Name: Select the option that will correctly replace the question mark (?) in the series. 107, 103, 87, 51, ?
Uploaded: March 17, 2021, 5:33 p.m.
Duration: 1 min 4 s
Description: Select the option that will correctly replace the question mark (?) in the series. 107, 103, 87, 51, ?

Solution

Squares of even natural numbers are subtracted.

107 - $$(2)^2$$ = 103

103 - $$(4)^2$$ = 87

87 - $$(6)^2$$ = 51

51 - $$(8)^2$$ = -13

=> Ans - (A)

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SSC GD 15th Feb 2019 Shift-3

Select the option that will correctly replace the question mark (?) in the series.107, 103, 87, 51, ?

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Select the option that will correctly replace the question mark (?) in the series.
107, 103, 87, 51, ?