*Hello and welcome to ExamPundit. Here are some number series problems to solve.*

**Directions (1-5): In**

the following number series only one number is wrong. Find out the wrong

number.

the following number series only one number is wrong. Find out the wrong

number.

**1. 190 166 145 128**

112 100 91

112 100 91

(a) 100 (b) 91 (c) 128 (d) 112 (e) 145

**2. 20480 5120 1280**

320 100 20 5

320 100 20 5

(a) 5120 (b) 320 (c) 1280 (d) 100 (e) 5

**3. 60 67 76 87 99 115**

(a) 67 (b) 87 (c) 76 (d) 115 (e) 99

**4. 7 8 18 57 228 1165**

6996

6996

(a) 228 (b) 57 (c) 1165 (d) 8 (e) 18

**5. 1 1 2 6 24 96 720**

(a) 720 (b) 96 (c) 24 (d) 6 (e) 2

**Direction (6-10):**

What value should come in the place of question mark (?) in the following

number

What value should come in the place of question mark (?) in the following

number

**series:**

**6. 6, 11, 32, 111,**

464, ?

464, ?

(a) 2165 (b) 2205 (c) 2285 (d) 2345 (e) 2375

**7. 3, 14, 39, 84,**

155, ?

155, ?

(a) 236 (b) 258 (c) 264 (d) 272 (e) 278

**8. 8, 12, 24, 60,**

180, ?

180, ?

(a) 480 (b) 510 (c) 630 (d) 720 (e) 780

**9. 168, 171, 178,**

191, 212, ?

191, 212, ?

(a) 243 (b) 247 (c) 251 (d) 254 (e) 257

**10. 4, 7, 10, 11, 22,**

19, 46, ?

19, 46, ?

(a) 33 (b) 35 (c) 37 (d) 39 (e) 41

__Solutions:__
1. Subtracting 24, 21, 18, 15, 12.

2. Dividing previous number by 4.

3. Go on adding 7, 9, 11, 13, 15, …

4. The series is: 7 Ã— 1 + 1 = 8

8 Ã— 2 + 2 = 18

18 Ã— 3 + 3= 57

57 Ã— 4 + 4 = 232 not 228

2328 Ã— 5 + 5 = 1165

1165 Ã— 6 + 6 = 6996

So, 228 is wrong.

5. The series is: 1 Ã— 1 = 1

1 Ã— 2 = 2

2 Ã— 3 = 6

6 Ã— 4 = 24

24 Ã— 5 = 120 not 96

120 Ã— 6= 720

So, 96 is wrong.

6. Series is Ã—1+5, Ã— 2 + 10, Ã—3 + 15, Ã— 4 + 20

7. Series is 1 + 12 + 13 , 2 + 22 +23 , 3 + 32 + 33

8. Series is Ã— 0.5 + 8, Ã—1.0 + 12, Ã—1.5 + 24

9. Series is + 12 + 2, + 22 + 3, + 32 + 4……

10. Series 1 â€“ 4, 4+6 = 10, 10 + 12 = 22, 22 + 24 = 26

Series 2 â€“ 7, 7 + 4 = 11, 11 + 8= 19, 19 + 16 = 35

__How to Solve These?__
The combinations of Number Series can be in 100 or 1000s.

However, practice makes it perfect. Each time you practice, write down the

patterns in your notebook. By this not only you will get the idea of solving

them but also you will know the various patterns number series problems follow.

However, practice makes it perfect. Each time you practice, write down the

patterns in your notebook. By this not only you will get the idea of solving

them but also you will know the various patterns number series problems follow.

Regards

**Team ExamPundit**

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