Question 1

b e d f? h j? l

Accepted Answer

The series may be divided into groups as shown: b e d / f ? h / j ? l Clearly in the first group, the second and third letters are respectively three and two steps ahead of the first letter. A similar pattern would follow in the second and third groups.

Question 2

A, G, L, P, S,?

Accepted Answer

Question 3

ajs, gpy,?, sbk, yhq

Accepted Answer

Question 4

AB, DEF, HIJK,?, STUVWX

Accepted Answer

The number of letters in the terms of the given series increases by one at each step. The first letter of each term is two steps ahead of the last letter of the preceding term. However, each term consists of consecutive letters in order.

Question 5

Y, B, T, G, O,?

Accepted Answer

The given sequence is a combination of two series : I. Y,T, O and II. B, G, ? I consists of 2nd, 7th and 12th letters from the end of the English alphabet, while II consists of 2nd, 7th and 12th letters from the beginning of the English alphabet. So, the missing letter in II is the 12th letter from the beginning of the English alphabet, which is L.

Question 6

C, Z, F, X, I, V, L, T, O,?,?

Accepted Answer

The given sequence is a combination of two series: I. C, F, I, L, O, ? and II. Z, X, V, T, ?

Question 7

A, B, B, D, C, F, D; H, E,?,?

Accepted Answer

The given sequence is a combination of two series : I. 1st, 3rd, 5th, 7th, 9th, 11th terms i.e. A, B, C, D, E, ? II. 2nd, 4th, 6th, 8th, 10th terms i.e. B, D, F, H, ? Clearly, I consists of consecutive letters while II consists of alternate letters. So, the missing letter in I is F, while that in II is J. So, the missing terms i.e. 10th and 11th terms are J and F respectively.

Question 8

Z, X, S, I, R, R,?,?

Accepted Answer

Note that the numbers representing the difference between the consecutive terms of the series again from a series - 2, 5, 10, 17, 26, 37, 50 - in which the pattern is +3, +5, +7, +9, +11, +13.

Question 9

AYBZC, DWEXF, GUHVI, JSKTL,?

Accepted Answer

Question 10

T, R, P, N, L,?,?

Accepted Answer

Question 11

PMT, OOS, NQR, MSQ,?

Accepted Answer

Question 12

A, B, N, C, D, O, E, F, P,?,?,?

Accepted Answer

The given series may be divided into 2 groups : I. A, B, C, D, E, F, ?, ? and II. N, O, P, ? Clearly, the given series consists of two terms of I followed by one term of II. The missing terms in I are G and H while the missing term in II is Q.

Question 13

GH, JL, NQ, SW, YD,?

Accepted Answer

Question 14

R, U, X, A, D,?

Accepted Answer

Question 15

AYD, BVF, DRH,?, KGL

Accepted Answer

Question 16

AZ, CX, FU,?

Accepted Answer

Question 17

ADVENTURE, DVENTURE, DVENTUR,?, VENTU

Accepted Answer

One letter from the beginning and one from the end of a term are removed, one by one, in alternate steps.

Question 18

A, D, H, M,?, Z

Accepted Answer

Question 19

PERPENDICULAR, ERPENDICULA, RPENDICUL,?

Accepted Answer

Each term of the series is obtained by removing two letters from the preceding term one from the beginning and one from the end, So, the missing term is PENDICU.

Question 20

Z,?, T,?, N,?, H,?, B

Accepted Answer

Series Completion Questions