Practice MCQ Questions and Answer on Series Completion
71.
Choose the missing terms out of the given alternatives : Z, U, Q, ?, L
(A) I
(B) K
(C) M
(D) N
Solution:
Z - 5 = U - 4 = Q - 3 = N - 2 = L
72.
20, 20, 19, 16, 17, 13, 14, 11, ?, ?
(A) 10, 10
(B) 10, 11
(C) 13, 14
(D) 13, 16
Solution:
Let the missing terms of the series be x1 and x2. Thus, the sequence 20, 20, 19, 16, 17, 13, 14, 11, xv x2 is a combination of two series : I. 20, 19, 17, 14, x1 and II. 20, 16, 13, 11, x2 The pattern in I is - 1, - 2, - 3,......So, missing term, x1 = 14 - 4 = 10. The pattern in II is - 4, - 3, - 2,......So, missing term, x2 = 11 - 1 = 10.
73.
Choose the missing terms out of the given alternatives :1st letter : Z, S, S, W, O, T, K, Q, G, ? , ?
(A) N, C
(B) N, D
(C) O, C
(D) O, D
Solution:
The given sequence is a combination of two series:I: Z, W, T, Q, ? and II: S, O, K, G,, ? The pattern in I is: Z - 3 = W - 3 = T - 3 = Q - 3 = N The pattern in II is : S - 4 = O - 4 = K - 4 = G - 4 = C
74.
Choose the missing terms out of the given alternatives : A, CD, GHI, ? , UVWXY
(A) LMOP
(B) MNO
(C) MNOP
(D) NOPQ
Solution:
Each term consists of consecutive letters in order. The number of letters in the terms goes on increasing by one at each steps. Also, there is a gap of one letter between the last letter of the first term and the first letter of the second term; a gap of two letters between the last letter of the second term and the first letter of the third term; and so on. So, there should be a gap of three letters between the last letter of the third term and the first letter of the desired term.
75.
Choose the correct order of the given alternative : FAK, IEM, LIO, ?
(A) OMQ
(B) OPQ
(C) MNO
(D) NOP
Solution:
F A K +3 +4 +2 I E M +3 +4 +2 L I O +3 +4 +2 O M Q
76.
Choose the missing terms out of the given alternatives : 2B, 4C, 8E, 14H, ?
(A) 16K
(B) 20I
(C) 20L
(D) 22L
Solution:
Numbers : 2 + 2 = 4 + 4 = 8 + 6 = 14 + 8 = 22 Letters : B + 1 = C + 2 = E + 3 = H + 4 = L
77.
Choose the missing terms out of the given alternatives.
A, B, N, C, D, O, E, F, P, ?, ?, ?
(A) G, H, I
(B) G, H, J
(C) G, H, Q
(D) J, K, L
Solution:
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.
78.
10, 14, 26, 42, 70, ?
(A) 100
(B) 102
(C) 106
(D) 114
Solution:
Each term in the series, except the first two terms, is 2 more than the sum of the preceding two terms. So, missing term = (42 + 70) + 2 = 114.
79.
Choose the missing terms out of the given alternatives : DHL, PTX, BFJ ?
(A) CCK
(B) KOS
(C) NRV
(D) RVZ
Solution:
1st letter : D + 12 = P + 12 = B + 12 = N 2nd letter : H + 12 = T + 12 = F + 12 = R 3rd letter : L + 12 = X + 12 = J + 12 = V
80.
Choose the missing terms out of the given alternatives.
ADVENTURE, DVENTURE, DVENTUR, ?, VENTU
(A) DVENT
(B) VENTURE
(C) VENTUR
(D) DVENTU
Solution:
One letter from the beginning and one from the end of a term are removed, one by one, in alternate steps.