Practice MCQ Questions and Answer on Series Completion
181.
Choose the missing terms out of the given alternatives : A, G, L, P, S ?
(A) U
(B) W
(C) X
(D) Y
Solution:
A + 6 = G + 5 = L + 4 = P + 3 = S + 2 = U
182.
1, 5, 13,25,41,?
(A) 51
(B) 57
(C) 61
(D) 63
Solution:
The pattern is + 4, + 8, + 12, + 16...... So, missing term = 41 + 20 = 61.
183.
Choose the missing terms out of the given alternatives : BMX, DNW, FOU, ?
(A) GHO
(B) GPS
(C) HPS
(D) HPT
Solution:
1st letter : B + 2 = D + 2 = F + 2 = H 2nd letter : M + 1 = N + 1 = O + 1 = P 3rd letter : X - 1 = W - 2 = U - 1 = T
184.
Choose the missing terms out of the given alternatives : A, I, P, V, A, E, ?
(A) E
(B) F
(C) G
(D) H
Solution:
A + 8 = I + 7 = P + 6 = V + 5 = A + 4 = E + 3 = H
185.
10, 18, 28, 40, 54, 70, ?
(A) 85
(B) 86
(C) 87
(D) 88
Solution:
The pattern is + 8, + 10, + 12, + 14, ..... So, missing term = 70 + 18 = 88.
186.
6, 17, 39, 72, ?
(A) 83
(B) 94
(C) 116
(D) 127
Solution:
The pattern is + 11, + 22, + 33, ..... So, missing term = 72 + 44 = 116.
187.
28, 33, 31, 36, ?, 39
(A) 32
(B) 34
(C) 38
(D) 40
Solution:
The pattern is + 5, - 2, + 5, - 2,..... So, missing term = 36 - 2 = 34.
188.
Choose the missing terms out of the given alternatives.
ATTRIBUTION, TTRIBUTIO, RIBUTIO, IBUTI, ?
(A) IBU
(B) UT
(C) UTI
(D) BUT
Solution:
In the first step, one letter from the beginning and one from the end of a term are removed to give the next term. In the second step, two letters from the beginning of a term are removed. These two steps are repeated alternately.
189.
Choose the missing terms out of the given alternatives.
A, CD, GHI, ?, UVWXY
(A) LMNO
(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 step. 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.
190.
Choose the missing terms out of the given alternatives : Y, B, T, G, O, ?
(A) N
(B) M
(C) L
(D) K
Solution:
The given sequence is a combination of two series:I: Y, T, O andII: 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 is the 12th letter from the beginning of the English alphabet, which is L.