Question : Directions: A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
ABCD, CUKA, ENSX, GGAU, ?
Option 1: IQRT
Option 2: MNOQ
Option 3: IRQT
Option 4: IZIR
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Correct Answer: IZIR
Solution :
Given:
ABCD, CUKA, ENSX, GGAU, ?
In the given series, add 2 and 8 to the place value of the first and third letters and subtract 7 and 3 from the place value of the second and fourth letters of the previous term to obtain the next term –
ABCD
→
A + 2 = C; B – 7 = U; C + 8 = K; D – 3 = A
CUKA
→
C + 2 = E; U – 7 = N; K + 8 = S; A – 3 = X
ENSX
→
E + 2 = G; N – 7 = G; S + 8 = A; X – 3 = U
GGAU
→
G + 2 = I; G – 7 = Z; A + 8 = I; U – 3 = R
So, IZIR is the missing term of the series. Hence, the fourth option is correct.
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