Q. 1)
2, 13, 67, 271, ?, 1639.
(A) 1067
(B) 1177
(C) 817
(D) 1371
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Answer:
option C is the right answer
Answer:
The given series is in the below pattern,
∴ First term = 2
Second term = ( First term × 6 ) + 1 = 13
Third term = ( Second term × 5 ) + 2 = 65 , 67 should be sixth term because ( 13 × 5 ) + 2 = 67 .
So 65 is wrong. we get 67 as Third term.
Similarly we can find the all terms
Fourth term = ( Third term × 4 ) + 3 = 271
Fifth term = ( Fourth term × 3 ) + 2 = 817
Sixth term = 1639,
Seventh term = 1645.