# General Intelligence and Reasoning - Semantic Classification

Classification means to arrange the items of a given group on the basis of common qualities the items possess and then spot the one.

In the question four options are given out of which three are almost same in nature but the remaining one is dissimilar.

Let see some examples:

Question1(SSC CHSL): Which one of the words given below is different from the rest?

(a) Car

(b) Helicopter

(c) Bus

(d) Train

Explanation: Car, Bus and train move on surface and helicopter moves in air.

Question 2(SSC CHSL): Select the odd word/letters/ number/number pair from the given alternatives.

(a) 81

(b) 125

(c) 64

(d) 198

Explanation: 81 = 9², 125 = 5², 64 = 8² But 192 = 14² + 2

Question 3(SSC CHSL): Select the odd word/letters/ number/number pair from the given alternatives.

(b) Ranchi

(c) Lucknow

(d) Roorkee

Explanation: Dehradun, Ranchi and Lucknow are capitals of different states and Roorkee is the city of Uttarakhand.

Practice Questions:

Select the odd word/letters/ number/number pair from the given alternatives.

Q1: (a) 13

(b) 17

(c) 19

(d) 21

Q2: (a) 25673

(b) 34664

(c) 42763

(d) 25556

Q3: (a) Lotus Temple

(b) India Gate

(c) Qutub Minar

(d) Gateway of India

Q4: (a) BE

(b) VZ

(c) QU

(d) KO

Q5: (a) Tonne

(b) Quintal

(c) Kilogram

(d) Gallon

Q6: (a) Nightblindness

(b) Scurvy

(c) Beri-Beri

(d) AIDS

Q7: (a) Square

(b) Rectangle

(c) Rhombus

(d) Polygon

Q8: (a) Joule

(b) Ohm

(c) Watt

(d) Magnetic Field

1: (d) 21

Hint: 21 is a composite number, while 13, 17 and 19 are prime numbers.

2: (c) 42763

Hint: 25673 = 2 + 5 + 6 + 7 + 3 = 23,

34664 = 3 + 4 + 6 + 6 + 4 = 23

42763 = 4 + 2 + 7 + 6 + 3 = 22

25556 = 2 + 5 + 5 + 5 + 6 = 23

3: (d) Gateway of India

Hint: Gateway of India is in Mumbai, other monuments are in Delhi.

4: (a) BE

Hint: Check and compare alphabets position.

B(2) → E(5) - 3 positions forward

V(22) → Z(26) - 4 positions forward

Q(17) → U(21) - 4 positions forward

K(11) → O(15) - 4 positions forward

5: (d) Gallon

Hint: Tonne, Quintal and Kilogram are units of weight and Gallon is a unit of liquid.

6: (d) AIDS

Hint: AIDS is a viral disease while others are deficiency diseases.

7: (d) Polygon