1. 221, 55, 224, 55, 236, ?, 2571
a) 242
b) 55
c) 254
d) 57.25
e) None of these
2. 5, 8, 15, 37, ?, 309.5
a) 99.5
b) 97.5
c) 94.5
d) 98.5
e) 96.5
3. 3, 2, 14, 35, 107, ?
a) 232
b) 218
c) 222
d) 225
e) 242
4. 664, 334, 85.5, 16.25, 4.03125, ?
a) 2.73012
b) 3.17203
c) 2.403125
d) 3.220175
e) 2.220175
5. 12, 14, 32, 102, 416, 2090, ?
a) 15522
b) 12552
c) 13525
d) 17552
e) None of these
6. 4, 6, 9, 13.5, 20.25, 30.375, ?
a) 40.25
b) 45.5625
c) 42.7525
d) 48.5625
e) None of these
7. 705, 728, 774, 843, 935, 1050, ?
a) 1190
b) 1180
c) 1185
d) 1187
e) None of these
8. 4, 2, 3.5, 7.5, 26.25, 118.125
a) 118.125
b) 26.25
c) 3.5
d) 2
e) 7.5
9. 13, 14, 30, 93, 376, 1885, ?
a) 10818
b) 10316
c) 11316
d) 1131
e) None of these
10. 96, 99, 104, ?, 128, 151
a) 111
b) 112
c) 113
d) 114
e) None of these
SOLUTIONS
1. Answer (d)
Explanation :
(221-1)/4 = 55
(55+1)*4 = 224
(224-4)/4 = 55
(55+4)*4 = 236
(236-7)/4 = 57.25
(57.25+7)*4 = 257
2. Answer (a)
Explanation :
5 * 1 + 2 + 1 = 8
8 * 1.5 + 4 – 1 = 15
15 * 2 + 6 + 1 = 37
37 * 2.5 + 8 – 1 = 99.5
99.5 * 3 + 10 + 1 = 309.5
3. Answer (c)
Explanation :
3 + 1³ – 2 = 2
2 + 2³ + 4 = 14
14 + 3³ – 6 = 35
35 + 4³ + 8 = 107
4. Answer (c)
Explanation :
664 + 4 ÷ 2 = 334
334 + 8 ÷ 4 = 85.5
85.5 + 12 ÷ 6 = 16.25
16.25 + 16 ÷ 8 = 4.03125
4.03125 + 20 ÷ 10 = 2.403125
5. Answer (b)
Explanation: ×1 + 2, ×2 + 4, ×3 + 6, ×4 + 8, ×5 + 10, ×6 + 12,…….
6. Answer (b)
Explanation: The given series is based on the following pattern :×1.5,×1.5,……..
7. Answer (e)
Explanation:
705 + 1 × 23 = 728
728 + 2 × 23 = 774
774 + 3 × 23 = 843
843 + 4 × 23 = 935
935 + 5 × 23 = 1050
? = 1050 + 6 × 23 = 1050 + 138 = 1188
8. Answer (c)
Explanation: The series is based on the following pattern: ×0.5,×1.5,×2.5,×3.5,×4.5 Obviously, 3.5 Is the wrong number which should be replaced by 3.
9. Answer (c)
Explanation:
The given number series is based on the following pattern :
13 × 1 + 1 = 14
14 × 2 + 2 = 30
30 × 3 + 3 = 93
93 × 4 + 4 = 376
376 × 5 + 5 = 1885
? = 1885 × 6 + 6 = 11316
10. Answer (c)
Explanation:
96+3 = 99
99+(3+2) = 104
104+(5+4) = 113
113+(9+6) = 128
128+(15+8) 151
