# Quantitative Aptitude: Number Series for IBPS PO Prelims – Set 48

Directions: The following series are based on a specific pattern. Find the next number following the pattern.

1. 5, 28, 162, 805, 3216, ?
A) 8972
B) 9791
C) 8276
D) 8678
E) 9645
View Answer
Option E
Explanation
:
5 * 7 – 7 = 28
28* 6 – 6 = 162
162 * 5 – 5 = 805
805 * 4 – 4 = 3216
3216 * 3 – 3 = 9645
2. 5.5, 7, 10, 16, 28, ?
A) 101
B) 52
C) 45
D) 74
E) 93
View Answer
Option B
Explanation
:
9 + 1.5 = 7
7 + 2*1.5 = 10
10 + 4*1.5 = 16
16 + 8*1.5 = 28
28 + 16* 1.5 = 52
3. 13, 301, 445, 517, 553, ?
A) 580
B) 571
C) 652
D) 632
E) 582
View Answer
Option B
Explanation
:
13 + 288 = 301
301 + 144 = 445
445 + 72 = 517
517 + 36 = 553
553 +18 = 571
4. 4, 6, 6, 30, 100, ?
A) 205
B) 315
C) 475
D) 530
E) 685
View Answer
Option D
Explanation
:
4 * 1 + 1*2 = 6
6*2  – 2*3 = 6
6 * 3 + 3*4 = 30
30*4 – 4*5 = 100
100*5 + 5*6 = 530
5. 5, 11, 29, 83, 245, ?
A) 535
B) 731
C) 615
D) 602
E) 533
View Answer
Option B
Explanation
:
5 + 6 = 11
11 + 3 *6 = 29
29 + 3 *18 = 83
83 + 3 * 54 = 245
245 + 3 * 162 = 731
6. 1.2, 2.7, 2.2, 3.7, 3.2, ?
A) 4.3
B) 4.7
C) 3.9
D) 5.1
E) 4.8
View Answer
Option B
Explanation
:
1.2 + 1.5 = 2.7
2.7 – 0.5 = 2.2
2.2 + 1.5 = 3.7
3.7 – 0.5 = 3.2
3.2 + 1.5 = 4.7
7. 6, 4, 5, 11, 39, ?
A) 189
B) 128
C) 168
D) 155
E) 180
View Answer
Option A
Explanation
:
6 × 1 – 2 = 4
4 × 2 – 3 = 5
5 × 3 – 4 = 11
11 × 4 – 5 =39
39 × 5 – 6 =189
8. 4008, 1335, 444, 147, 48, ?
A) 21
B) 24
C) 15
D) 34
E) 11
View Answer
Option C
Explanation
:
4008/3 – 1 = 1335
1335/3 – 1 = 444
444/3 – 1 = 147
147/3 – 1 = 48
48/3 – 1 = 15
9. 5, 6, 16, 57, 244, ?
A) 1267
B) 1256
C) 1389
D) 1245
E) 1370
View Answer
Option D
Explanation
:
5 × 1 + 1 ²= 6
6 × 2 + 2² = 16
16 × 3 + 3² = 57
57 × 4 + 4² = 244
244 × 5 + 5²= 1245

10. 5, 30, 6, 24, 8, ?
A) 12
B) 32
C) 24
D) 18
E) 16
View Answer
Option E
Explanation
:
5 × 6 = 30
30/5 = 6
6 × 4 = 24
24/3 = 8
8 × 2 = 16

## 9 Thoughts to “Quantitative Aptitude: Number Series for IBPS PO Prelims – Set 48”

1. Dream

Ty.

2. jaga

thank u mam

3. Jitu

ty az

4. सिंदबाद

hank u

5. Pooja?

Thnku

6. MERAKI

ty mam:))

7. the walking dead

8-10:)

8. *AiM*?

Only 8/10???

9. Wikki Waran

ty