Question : Directions: A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
NTSM, QNBA, THKO, WBTC, ?
Option 1: NMOP
Option 2: ZVCQ
Option 3: RMNO
Option 4: ZYQR
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Correct Answer: ZVCQ
Solution :
Given:
NTSM, QNBA, THKO, WBTC, ?
Add 3 and 9 to the positional value of the first and the third letter and subtract 6 and 12 from the positional value of the second and the fourth letter.
NTSM→N + 3 = Q; T – 6 = N; S + 9 = B; M – 12 = A
QNBA→Q + 3 = T; N – 6 = H; B + 9 = K; A – 12 = O
THKO→T + 3 = W; H – 6 = B; K+ 9 = T; O – 12 = C
WBTC→W + 3 = Z; B – 6 = V; T + 9 = C; C – 12 = Q
So, the next term of the series is ZVCQ. Hence, the second option is correct.
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