## Mathematical Operation For SBI PO Set – 12

1) If > denotes +, < denotes -, + denotes ÷, denotes ×, – denotes =, × denotes > and = denotes <, choose the correct statement in each of the following questions.

a) 7 > 7 < 7 + 7 = 14

b) 7 Λ 7 > 7 + 7 = 7 Λ 7 > 1

c) 7 < 7 + 7 =6

d) 7 + 7 > 7 = 8

e) None of these

a) 7 > 7 < 7 + 7 = 14

Explanation

(a) 7+7-7÷7<14

13<14

2) In each of the following questions, different alphabets stand for various symbols as indicated below:

Subtraction: M

Multiplication: A

Division: Q

Equal to: X

Greater than: Y

Less than: Z

Out of the four alternatives given in these questions, only one is correct according to the above letter symbols. Identify the correct answer.

a) 2 Z 2 A 4 O 1 A 4 M 8

b) 8 Y 2 A 3 A 4 Q 2 A 4

c) 10 X 2 O 2 A 4 O 1 M 2

d) 12 X 4 O 2 Q 1 A 4 A 2

e) None of these

a) 2 Z 2 A 4 O 1 A 4 M 8

Explanation

(a) 2<2×4+1×4-8

2<4

3) In each of the following questions, different alphabets stand for various symbols as indicated below:

Subtraction: M

Multiplication: A

Division: Q

Equal to: X

Greater than: Y

Less than: Z

Out of the four alternatives given in these questions, only one is correct according to the above letter symbols. Identify the correct answer.

a) 1O 1 Q 1 M 1 Y 3 Q 1

b) 2 Q 1 O 10 A 1 Z 6 A 4

c) 3 O 2 O 10 Q 2 X 10 A 2

d) 5 Q 5 A 5 O 5 Y 5 A 2

e) None of these

b) 2 Q 1 O 10 A 1 Z 6 A 4

Explanation

(b) 2÷1+10×1<6×4

12<24

4) In each of the following questions, different alphabets stand for various symbols as indicated below:

Subtraction: M

Multiplication: A

Division: Q

Equal to: X

Greater than: Y

Less than: Z

Out of the four alternatives given in these questions, only one is correct according to the above letter symbols. Identify the correct answer.

a) 3 O 2 X 2 Q 1 A 3 O 1

b) 6 M 2 Y 10 Q 2 A 3 O 1

c) 10 A 2 Z 2 Q 2 A 10 Q 2

d) 10 A 2 Y 2 Q 1 A 10 Q 2

e) None of these

d) 10 A 2 Y 2 Q 1 A 10 Q 2

Explanation

(d) 10×2>2÷1×10÷2

20>10

5) If A stands for ‘not equal to’ (≠), B stands for ‘greater than’ (>), C stands for ‘not less than’ (≮), D stands for ‘equal to’ (=), E stands for ‘not greater than’ (≯), F stands for ‘less than’ (<), then according to the given premises (4x F 5y) and (5y E 3s), which of the following inferences is correct?

a) 4x A 3s

b) 4x B 3s

c) 4x C 3s

d) 4x D 3s

e) None of these

e) None of these

Explanation

(e) 4x<5y & 5y≤3s

4x<3s

4x  F 3s

6) In the following questions, ∆ means ‘is greater than’, % means ‘is lesser than’, □ means ‘is equal to’, = means ‘is not equal to’, + means ‘is a little more than’, × means ‘is a little less than’.

Choose the correct alternative in each of the following questions.

If a ∆ b and b + c, then

a) a % c

b) c % a

c) c + a

d) Can’t say

e) None of these

b) c % a

Explanation

(b)a>b≥c

c<a = c%a

7) In the following questions, ∆ means ‘is greater than’, % means ‘is lesser than’, □ means ‘is equal to’, = means ‘is not equal to’, + means ‘is a little more than’, × means ‘is a little less than’.

Choose the correct alternative in each of the following questions.

If c = a and a = b, then

a) b ∆ a

b) c □ a

c) b = a

d) Can’t say

e) None of these

c) b = a

Explanation

(c) c ≠ b ≠a

b=a

8) In the following questions, ∆ means ‘is greater than’, % means ‘is lesser than’, □ means ‘is equal to’, = means ‘is not equal to’, + means ‘is a little more than’, × means ‘is a little less than’.

Choose the correct alternative in each of the following questions.

If a × b and b □ c, then

a) c + a

b) b ∆ c

c) a + c

d) c □ a

e) None of these

a) c + a

Explanation

(a) a ≤ b = c

c ≤ a = c + a

9. If ‘<’ means ‘-‘, ‘>’ means ‘+’, ‘=’ means ‘×’ and ‘\$’ means ‘÷’ then what would be the value of 27>81\$9<6?

a) 6

b) 33

c) 36

d) 54

e) None of these

e) None of these

Explanation

(e) 27 + 81÷9-6=30

10) In the following questions, stands for ‘equal to’; for ‘greater than’; for ‘less than’ and for ‘not equal to’.

If \$ means ‘+’, # means ‘-‘, @ means ‘×’ and *means ‘÷’, then what is the value of 16\$4@5#72*8?

a) 25

b) 27

c) 28

d) 36

e) None of these