Question 10
Select the number that can replace the question mark (?) in the following series.
17, 21, 30, 46, 71, ?
Solution
The series follows pattern as,
17 + $$(2)^2$$ = 17 + 4 = 21
21 + $$(3)^2$$ = 21 + 9 = 30
30 + $$(4)^2$$ = 30 + 16 = 46
46 + $$(5)^2$$ = 46 + 25 = 71
71 + $$(6)^2$$ = 71 + 36 = 107
$$\therefore$$ The correct answer is option C.
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