**Directions: Find the wrong term of the following number series:**

**Q1. 3 6 15 45 113 243**

**Options:**

a. 6

b. 45

c. 243

d. 3

e. 15

**Q2. 33 39 56 85 127 178**

**Options:**

a. 178

b. 127

c. 39

d.56

e. 85

**Q3. 13 27 45 117 333 981 2925**

**Options:**

a.981

b.333

c.117

d.27

e.2925

**Q4. 7 4 9 21 52.5 160.5**

**Options:**

a. 160.5

b. 21

c. 4

d. 7

e. 21

**Q5. 7 9 21 67 275**

**Options:**

a. 7

b. 67

c. 275

d. 21

e. 9

**Answer Index: Q1-(c), Q2-(a), Q3-(d), Q4-() and Q5-(c)**

**Shortcut Solution:**

**Sol#Q1.**3*2=6, 15*3=45, 113*4=452

So, 243 is the wrong term in this series, 452 had to be in place of 243.

**Sol#Q2.**Correct series is:

So, 178 is the wrong term in this series, 183 had to be in place of 178.

**Sol#Q3.**Logic is: *3+18

Correct Series is: 13

**21**45 117 333 981 2925

So, 27 is the wrong term in this series, 21 had to be in place of 27.

**Sol#Q4.**Pattern is:

(7×0.5)+0.5=4

(4×1)+1=5

(5×1.5)+1.5=9

(9×2)+2=20

(20×2.5)+2.5=52.5

(52.5×3)+3=160.5

So, 21 is the wrong term in this series, 20 had to be in place of 21.

**Sol#Q5.**Logic is: *1+2, *2+3, *3+4, *4+5,...........

So, 275 is the wrong term in this series, 273 had to be in place of 275.

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