Direction: What value should come in place of question mark (?) in the following number series?
2, 4, 6, 10, 16, 26, 42, ?
A. 62 B. 68 C. 78 D. 72
Correct Answer: B
The series is 2 + 4 = 6, 4 + 6 = 10, 6 + 10 = 16, 10 + 16 = 26, 16 + 26 = 42, 26 + 42 = 68
12, 23, 35, 47, 511, 613, ?
A. 715 B. 719 C. 717 D. 721
Correct Answer: C
The given series is 12 (1st natural number and 1st prime number) then 23 (2nd natural number and
2nd prime number) then 35 (3rd natural number and 3rd prime number) and so on.
Hence next term will be 717.
Correct Answer: D
4 × 3 = 12, 12 × 3 = 36, 36 × 3 = 108, 108 × 3 = 324
Hence, option D is correct.
4, 3, 6, 6, 8, 12, 10, 24, 12, ?
A. 34 B. 14 C. 48 D. 28
Correct Answer: C
Given series = 4, 3, 6, 6, 8, 12, 10, 24, 12, ?
There are two series ( 4, 6, 8, 10, 12) and ( 3, 6, 12, 24, 48…)
Find one increase by 2 and second one is multiplied by 2. Hence the series id 4,
3, 6, 6, 8, 12, 10, 24, 12, 48
Hence, option C is correct.
MN, QR, UV, ?
A. XY B. WX C. YX D. YZ
Correct Answer: D
(M +1 N) +3 (Q +1 R) +3 ( U +1 V) +3 (Y +1 Z)
Difference between 2 Alphabets in series is +1
Difference between different groups is +3
C, J, P, ?, Y, B
A. W B. U C. R D. T
Correct Answer: B
C +7 = J +6 = P +5 = U +4 = Y +3 = B
based on the positional value of alphabets. i.e. A=1, B=2 …
3, 5, 5, 19, 7, 41, 9, ?
A. 71 B. 61 C. 79 D. 69
Correct Answer: A
Fiest series : 3, 5, 7, 9
Second series : 5, 19, 41, ?
Difference of Second series are 14, 22, 30 etc
Next term is 41+30 i.e equal to 71
132, 156, ?, 210, 240, 272
A. 196 B. 182 C. 199 D) 204
Correct Answer: B
The given series follows a logic that
11 x 12, 12 x 13, 13 x 14, 14 x 15, 15 x 16,…
So the missing number is 13 x 14 = 182
10, 9, 60, 90, 70, 66, ?
A. 73 B. 19 C. 96 D. 22
Correct Answer: C
ten = 3(number of letters)
nine = 4(number of letters)
sixty = 5(number of letters)
ninety = 6(number of letters)
seventy = 7(number of letters)
sixtysix = 8(number of letters)
ninetysix=96(number of letters)
Then, likwise choose the number which has 9 letters in its Spelling.
