Do you have the full potential to solve a numerical series like some** number patterns with relational logic** in between every number of that patter or series? Then you are at the right place now.

Below you are given *10 typical numerical analysis with their proper answer with clarification*. If you are a quality job-seeker, looking to seal your career with your dream job, then try to find the answer yourself.

You definitely find it challenging at certain point of time to calculate the answer – or in other sense it could be an ideal brain-teaser for you.

**Q1.** Which of the following number will replace the (?) mark and complete the series –

1, 2, 6, 12, 20, 30, ?

**Answer Option:**

a. 36

b. 42

c. 55

d. 60

### Answer

### Answer

### Explanation

### Explanation

2*2 + 2 = 6

3*3 + 3 = 12

4*4 + 4 = 20

5*5 + 5 = 30

6*6 + 6 = 42

So, ?” will be replaced with 42

**Q2.** Which of the following number will replace the (?) mark and complete the series –

4, 9, 16, 25, 36, 49, ?

**Answer Option:**

a. 40

b. 54

c. 64

d. 76

### Answer

### Answer

### Explanation

### Explanation

9 = (3×3)

16 = (4×4)

25 = (5×5)

36 = (6×6)

49 = (7×7)

Then, 8×8 = 64. So, So, ‘?’ will be replaced with 64.

**Q3.** Which of the following number will replace the (?) mark and complete the series –

7, 17, 12, 22, 17, 27, 22, ?

**Answer Option:**

a. 20

b. 32

c. 40

d. 52

### Answer

### Answer

### Explanation

### Explanation

So, ‘?’ will be replaced with 32.

**Q4.** Which of the following number will replace the (?) mark and complete the series –

5.5, 6.3, 7.1, 7.9, 8.7, ?

**Answer Option:**

a. 8.5

b. 9.5

c. 10.5

d. 11.5

### Answer

### Answer

### Explanation

### Explanation

**Q5.** Which of the following number will replace the (?) mark and complete the series –

60, 20, 50, 30, 40, 40, 30, 50, ?

**Answer Option:**

a. 12

b. 20

c. 30

d. None of the above

### Answer

### Answer

### Explanation

### Explanation

**All the above 5 numerical problems are solved in the following VIDEO:**

**Q6.** Which of the following number will replace the (?) mark and complete the series –

100, 50, 200, 100, 400, 200, 800, ?

**Answer Option:**

a. 400

b. 1000

c. 1200

d. 1100

### Answer

### Answer

### Explanation

### Explanation

200/2 = 100 and (200 + 100 + 100) = 400

400/2 = 200 and (200 + 400 + 200) = 800

800/2 = 400

**Q7.** Which of the following number will replace the (?) mark and complete the series –

5, 15, 45, 135, ?

**Answer Option:**

a. 200

b. 250

c. 405

d. 505

### Answer

### Answer

### Explanation

### Explanation

**Q8.** Which of the following number will replace the (?) mark and complete the series –

10, 8, 13, 35, 135, ?

**Answer Option:**

a. 500

b. 669

c. 723

d. None of the above

### Answer

### Answer

### Explanation

### Explanation

8×2 – 3 = 13

13×3 – 4 = 35

35×4 – 5 = 135

135×5 – 6 = 669

**Q9.** Which of the following number will replace the (?) mark and complete the series –

2, 2, 4, 6, 10, 16, ?

**Answer Option:**

a. 16

b. 22

c. 26

d. None of the above

### Answer

### Answer

### Explanation

### Explanation

So, 2+2 = 4, 2+4 = 6, 4+6 = 10, 6+10 = 16, 10+16 = 26 and so on….

**Q10.** Which of the following number will replace the (?) mark and complete the series –

102, 115, 92, 125, 82, ?

**Answer Option:**

a. 135

b. 195

c. 223

d. 332

### Answer

### Answer

### Explanation

### Explanation

115 – 23 = 92

92 + 33 = 125

125 – 43 = 82

So, 82 + 53 = 135

**From Q.6) to Q.10) are solved in the following VIDEO:**