[Download PDF] TS Police SI Mains 2018 Arithmetic and Reasoning Paper with Solutions

Instructions

In questions pick out the odd thing among the given items.

Question 101

15, 35, 99, 143

Video Solution

Question 102

56, 34, 14, 7

Video Solution

Solution

It should be a geometric progression with common ratio of 0.5
Every successive term should be half of the term just before it.
Hence, 34 is the odd one out. It should be 28 in its place.

Question 103

A, D, I, P, T, Y

Video Solution

Solution

Number the alphabets as A = 1 to Z = 26
A, D, I, P, Y have numbers which are perfect squares.

Question 104

9, 49, 81, 121, 169, 289

Video Solution

Solution

All are squares of prime numbers except 81 which is a square of 9.
Hence, odd one out.

Question 105

ZA, YE, XI, WO, TU

Video Solution

Solution

The second alphabet in every pair is a vowel.
And the first letter in each pair is reverse chronology from Z.
Instead of T, there should be V.

Question 106

343, 1331, 2197, 4913, 6859, 9261

Video Solution

Solution

All are cubes of prime numbers except 9261 which is a cube of 21 i.e. not a prime number
Hence, odd one out.

Question 107

1156, 1444, 1764, 2430

Video Solution

Solution

1156 = 34*34
1444 = 38*38
1764 = 42*42

But 2430 is not 46*46
Hence, odd one out.

Question 108

Beetroot, Brinjal, Carrot, Potato

Video Solution

Solution

The edible plant of the brinjal plant grows above the ground.
The edible parts of all the other plants grows below the ground.

Question 109

Reservoir, River, Tank, Watershed

Video Solution

Solution

River is the only body in which water is not stationary. Hence, the odd one out.

Question 110

21V23X, 13N15P, 9J11L, 5F7H

Video Solution

Solution

21-13 = 8
13-9 = 4
9-? = 2

? should be 7 i.e. the first number at the start of fourth term
Similarly
23-15 = 8
15-11 = 4
11-? = 2
? should be 9 i.e. the term at the center of fourth term

hence, fourth term in question is odd one out

CAT Content

TS Police SI Mains 2018 Arithmetic and Reasoning

15, 35, 99, 143

56, 34, 14, 7

A, D, I, P, T, Y

9, 49, 81, 121, 169, 289

ZA, YE, XI, WO, TU

343, 1331, 2197, 4913, 6859, 9261

1156, 1444, 1764, 2430

Beetroot, Brinjal, Carrot, Potato

Reservoir, River, Tank, Watershed

21V23X, 13N15P, 9J11L, 5F7H

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