Question : Directions: A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
ABCD, CTFZ, ELIV, GDLR, ?
Option 1: ITOQ
Option 2: QMQR
Option 3: IMOQ
Option 4: IVON
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Correct Answer: IVON
Solution :
Given:
ABCD, CTFZ, ELIV, GDLR, ?
Add 2 and 3 to the positional values of the first and the third letters and subtract 8 and 4 from the positional values of the second and the fourth letters of the previous term to obtain the next term in the series –
ABCD
→
A + 2 = C; B – 8 = T; C + 3 = F; D – 4 = Z
CTFZ
→
C + 2 = E; T – 8 = L; F + 3 = I; Z – 4 = V
ELIV
→
E + 2 = G; L – 8 = D; I + 3 = L; V – 4 = R
GDLR
→
G + 2 = I; D – 8 = V; L + 3 = O; R – 4 = N
So, IVON is the missing term in the series. Hence, the fourth option is correct.
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