Practice MCQ Questions and Answer on Series Completion
131.
Choose the missing terms out of the given alternatives : KM5, IP8, GS11, EV14, ?
(A) BX17
(B) BY17
(C) CY17
(D) CY18
Solution:
1st letter : K - 2 = I - 2 = G - 2 = E - 2 = C 3rd letter : M + 3 = P + 3 = S + 3 = V + 3 = Y Numbers : 5 + 3 = 8 + 3 = 11 + 3 = 14 + 3 = 17
132.
Choose the missing terms out of the given alternatives.
AZ, CX, FU, ?
(A) IR
(B) IV
(C) JQ
(D) KP
133.
In the series 10, 17, 24, 31, 38,.....which of the following will be a number of the series ?
(A) 48
(B) 346
(C) 574
(D) 1003
Solution:
The given series consists of numbers each of which, on dividing by 7, leaves a remainder 3. No other number except 346 satisfies the property.
134.
2, 2, 5,13, 28, ?
(A) 49
(B) 50
(C) 51
(D) 52
Solution:
The pattern is + 0, + 3, + 8, + 15, ..... i.e. + (l2 - 1), + (22 - 1), + (32 - 1), + (42 - 1), ..... So, missing term = 28 + (52 - 1) = 28 + 24 = 52.
135.
Choose the missing terms out of the given alternatives.
AI, BJ, CK, ?
(A) DL
(B) DM
(C) GH
(D) LM
136.
Choose the missing terms out of the given alternatives : AI, BJ, CK, ?
(A) DL
(B) DM
(C) GH
(D) LM
Solution:
1st letter :A + 1 B + 1 C + 1 D 2nd letter : I + 1 J + 1 K + 1 L
137.
3, 4, 7, 7, 13, 13, 21, 22, 31, 34, ?
(A) 42
(B) 43
(C) 51
(D) 52
Solution:
The given sequence is a combination of two series : I. 3, 7, 13, 21, 31, ? and II. 4, 7, 13, 22, 34 The pattern in I is + 4, + 6, + 8, + 10,..... The pattern in II is + 3, + 6, + 9, + 12,..... So, missing term = 31 + 12 = 43.
138.
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
139.
One term in the number series is wrong. Find out the wrong term.
10, 26, 74, 218, 654, 1946, 5834
(A) 26
(B) 74
(C) 218
(D) 654
Solution:
The correct pattern is x 3 - 4. So, 654 is wrong and must be replaced by (218 x 3 - 4) i.e. 650.
140.
Choose the missing terms out of the given alternatives : 2A11, 4D13, 12G17, ?
(A) 36I19
(B) 36J21
(C) 48J21
(D) 48J23
Solution:
1st number : 2 × 2 = 4 × 3 = 12 × 4 = 48 Middle letter : A + 3 = D + 3 = G + 3 = J 3rd number : 11 + 2 = 13 + 4 = 17 + 6 = 23