Aptitude Questions are common in various competitive exams, including Banking exams. It is an important part of almost all banking exams like **IBPS PO, IBPS Clerk, SBI PO**, and many more.

In this article, we have brought to you another 10 **Free Banking aptitude Questions** with detailed answers and explanations so that you can solve these and prepare for various online exam preparation, various interviews, Logical Reasoning Categories online tests, and much more.

Here is the set:

**10 NUMBER SERIES BANKING APTITUDE QUESTIONS**

**(Q1-Q5) What will come in place of the blank (__) in each of the following series?**

**Q1. 9, 5, 6, 10.5, 23, __**

**OPTIONS**

A. **50**

B. **65**

C. **60**

D. **35**

E.** 75**

ANS: C. **60**

SOLUTION:

9 * 0.5 + 0.5 = 5

5 * 1 + 1 = 6

6 * 1.5 + 1.5 = 10.5

10.5 * 2 + 2 = 23

23 * 2.5 + 2.5 = 60

Therefore with this logic, the answer is **60**.

**Q2.** **17, 98, 26, __ , 35, 80**

**OPTIONS**

A. **79**

B. **75**

C. **59**

D. **89**

E. **49**

ANS: D. **89**

SOLUTION:

26 -17 = 9

35 – 26 = 9

98 – 9 = 89

Therefore with this logic, the answer is **89**.

**Q3. ** 47, 78, 115, 164, 231, __

**OPTIONS**

A. **270**

B. **299**

C. **322**

D. **351**

E. **375**

ANS: C. **322**

SOLUTION:

47
47 + 31 = 78

78 + (31 + 6) = 115

115 + (37 + 12) = 164

164 + (49 + 18) = 231

231 + (67 + 24) = 322

Therefore with this logic, the answer is **322**.

**Q4. 7, 4.5 ,5.5, 12, 49, __**

**OPTIONS**

A. **93**

B. **149**

C. **79**

D. **245**

E. **393**

ANS: E. **393**

SOLUTION:

7 × 0.5 + 1 = 4.5

4.5 × 1 + 1 = 5.5

5.5 × 2 + 1 = 12

12 × 4 + 1 = 49

49 × 8 + 1 = 393

Therefore the ANS is **393**

**Q5.** **68, 117, 61, 124, 54, __**

**OPTIONS**

A. **131**

B. **151**

C. **141**

D. **161**

E. **101**

ANS: A. **131**

SOLUTION:

68–7=61

61–7=54

117+7=124

124+7=131

Therefore the ANS is **131**

### (Q6-Q10) A number in the series is wrong. Find the wrong number.

#### Q6.** 17, 23, 35, 55, 85, 125**

OPTIONS

A. **17**

B. **35**

C. **55**

D. **85**

E. **125**

ANS: E. **125**

SOLUTION:

17+2×3=23

23+3×4=35

35+4×5=55

55+5×6=85

85+6×7=127

Hence the wrong no. is **125**

**Q7. 7, 37, 91, 167, 271, 397**

OPTIONS

A. **7**

B. **37**

C. **167**

D.** 271**

E. **91**

ANS: C. **167**

SOLUTION:

7=2^3–1^3
37=4^3–3^3

91=6^3–5^3

167≠8^3–7^3=169

271=10^3–9^3

397=12^3–11^3

So the wrong no. is **167**

**Q8. 1, 8, 22, 45, 71, 106, 148**

A. **8**

B. **22**

C. **45**

D. **71**

E. **106**

ANS: C. **45**

SOLUTION:

1+7=8

8+14=22

22+21=43≠45

43+28=71

71+35=106

106+42=148

So the wrong no. is **45**

**Q9. 36, 20, 12, 8, 6, 5.5, 4.5**

OPTIONS

A. **36**

B. **20**

C. **12**

D. **6**

E. **5.5**

ANS: E. **5.5**

SOLUTION:

36

20–8=12

12–4=8

8–2=6

6 – 1 = 5 which is not = 5.5

5–0.5=4.5

Hence wrong no. is **5.5**

**Q10. 28, 66, 128, 224, 348, 518**

OPTIONS

A. 28

B. 66

C. 128

D. 224

E. 348

ANS: D. **224**

SOLUTION:

3^3+1=28

4^3+2=66

5^3+3=128

6^3+4=220

7^3+5=348

8^3+6=518

Hence the wrong no.is **224**

How many of the above questions have you solved?

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