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Nagalakshmi

· started a discussion

· 1 Months ago

(Question: 107234.0 )

Question:
DIRECTIONS: What should come in place of the question mark (?) in the following question?


13 25 61 121 205 (?)
Options:
A) 323
B) 326
C) 324
D) 313
E) None of these
Solution:

The pattern of the number series is:     

13 + 1 × 12 = 13 + 12 = 25

25 + 3 × 12 = 25 + 36 = 61

61 + 5 × 12 = 61 + 60 = 121

121 + 7 × 12 = 121 + 84 = 205

205 + 9 × 12 = 205 + 108

= 313

Knowledge Expert

· commented

· 1 Months ago

Dear student,Please post your doubt clearly so that we can fix your issue. Keep learning with us. Regards, Team TR
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