# Quantitative Aptitude: Number Series Set 154

1. 32, 80, 200, 500, 1250 ?
3125
4125
2500
3750
5125
Option A
The series is (32*2.5), (80*2.5), (200*2.5)…..

2. 12, 29, 63, 131, 267, ?
541
538
429
539
342
Option D
The series is (*2+5), (*2+5)…

3. 48, 51, 56, 63, ?, 87
72
74
75
78
76
Option B
The series (+3), (+5), (+7), (+11), (+13) the addition of prime numbers.

4. 1248, 1184, 1135, 1099, 1074, ?
1158
538
1058
1220
625
Option C
The series (-8^2), (-7^2), (-6^2)…

5. 6420, 6435, 6465, 6510, ?, 6645
6420
6500
6530
6570
6424
Option D
The series is (+15), (+30), (+45)…

6. 8, 8, 12, 28, 88, 932
28
88
932
12
8
Option B
The series is (*.5+4), (*1+4), (*2+4), (*4+4), (*8+4)

7. 320, 330, 310, 340, 300, 360
300
360
340
320
310
Option B
The series is (+10), (-20), (+30), (-40), (+50)

8. 32, 33, 41, 68, 114, 257
257
68
41
114
33
Option D
The series is (+1^3), (+2^3), (+3^3), (+4^3), (+5^3 )

9. 18, 36, 108, 432, 2160, 12360
12360
2160
432
108
36
Option A
The series is (*2), (*3), (*4)…

10. 45, 49, 41, 45, 37, 42
45
49
41
42
37
Option D
The series is (+4), (-8), (+4), (-8), (+4)