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

Instructions

Answer the following questions below based on the information given below.

In the figure given below the triangular region denotes the persons who read newspaper A. The circular region denotes the persons who read newspaper B and the rectangular region denotes the persons who read newspaper C.

Question 121

Number of persons who read both newspapers A and B is

Video Solution

Solution

Intersection areas of triangle and circle = 15+7 = 22

Question 122

Number of persons who read only one of the newspapers A, B and C is

Video Solution

Solution

People who read only A = 10 + 20 = 30
People who read only B = 25 + 20 = 45
People who read only C = 20 + 40 = 60

Pople who read only one newspaper = 30+45+60 = 135

Question 123

Number of persons who read all three newspapers is

Video Solution

Solution

Intersection area of triangle, rectangle and circle = 15

Question 124

Number of persons who read either newspaper B or newspaper C is

Video Solution

Solution

People who read B or C (avoiding overlap or repeat count) = 25+15+30+7+20+20+17+40 = 174

Instructions

For the following questions answer them individually

Question 125

If $$\triangle$$ denotes addition. $$\Box$$ denotes multiplication, * denotes substraction and $$\triangledown$$ denotes division then $$3 * 4 \Box 5 \triangle 6 \triangledown 2 =$$

Video Solution

Solution

The given expression in standard mathematical operations can be termed as:
3 - 4 x 5 + 6/2
= 3 - 4 x 5 + 3
= 3 - 20 + 3
= -14

Question 126

From point P. a man rides a cycle 9 km towards East. Then, he rides the cycle 2 km towards North. From there, he rides the cycle 3 km towards East. Finally he rides the cycle 3 km towards North to a point Q. Then the distance between the points P and Q is (in km)

Video Solution

Solution

Consider P at the origin (0,0)
Then Q is located at (12,6)

Hence, distance between P and Q = $$\sqrt{\ \left(12-0\right)^2+\left(6-0\right)^2}$$ = 13

Question 127

A person walks 3 km towards East, then walks 3 km towards South, then walks 7 km towards West and stops. The distance from the starting point and the end pointis (in km)

Video Solution

Solution

Let starting point have co ordinates (0,0)
Then finishing point = (-4, 3)

Distance between starting point and finish point = $$\sqrt{\ \left(-4-0\right)^2+\left(3-0\right)^2}$$ = 5

Question 128

P + Q means P is the daughter of Q, P * Q means P is the husband of Q. If P + Q * R then which of the following is true?

Video Solution

Solution

P+Q*R meaans that Q and R is a couple where Q is the husband, R is the wife and P is their daughter.
This condition is satisfied only by option A.

Question 129

Which of the three figures from the following five figures A, B, C, D and E form a square?

Video Solution

Question 130

If the paper in the following shape is folded to form a die then

(a) 1 lies opposite 6.
(b) 2 lies opposite 4.
(c) 3 lies opposite 5.
Then the true statement(s) among (a), (b), (c) is(are)

Video Solution

Solution

After folding, we get :
2 and 4 opposite each other
1 and 5 opposite each other
3 and 6 opposite each other

CAT Content

TS Police SI Mains 2018 Arithmetic and Reasoning

Number of persons who read both newspapers A and B is

Number of persons who read only one of the newspapers A, B and C is

Number of persons who read all three newspapers is

Number of persons who read either newspaper B or newspaper C is

If $$\triangle$$ denotes addition. $$\Box$$ denotes multiplication, * denotes substraction and $$\triangledown$$ denotes division then $$3 * 4 \Box 5 \triangle 6 \triangledown 2 =$$

From point P. a man rides a cycle 9 km towards East. Then, he rides the cycle 2 km towards North. From there, he rides the cycle 3 km towards East. Finally he rides the cycle 3 km towards North to a point Q. Then the distance between the points P and Q is (in km)

A person walks 3 km towards East, then walks 3 km towards South, then walks 7 km towards West and stops. The distance from the starting point and the end pointis (in km)

P + Q means P is the daughter of Q, P * Q means P is the husband of Q. If P + Q * R then which of the following is true?

Which of the three figures from the following five figures A, B, C, D and E form a square?

If the paper in the following shape is folded to form a die then (a) 1 lies opposite 6.(b) 2 lies opposite 4.(c) 3 lies opposite 5.Then the true statement(s) among (a), (b), (c) is(are)

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If the paper in the following shape is folded to form a die then

(a) 1 lies opposite 6.
(b) 2 lies opposite 4.
(c) 3 lies opposite 5.
Then the true statement(s) among (a), (b), (c) is(are)