## Mathematical Operation For SBI PO Set – 8

1) 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) 32 X 8 Q 2 A 3 Q 1 A 2

b) 14 X 2 A 4 A 2 M 2 Q 1

c) 2 Y 1 A 1 Q 1 O 1 A 1

d) 16 Y 8 A 3 O 1 A 2 M 2

e) None of these

b) 14 X 2 A 4 A 2 M 2 Q 1

Explanation

(b) 14=2×4×2-2÷1

14=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) 8 Q 4 A 1 M 2 X 16 M 16

b) 8 O 2 A 12 Q 10 X 18 Q 9

c) 6 Q 2 O 1 O 1 X 16 A 1

d) 2 O 3 M 4 Q 2 Z 1 A 2

e) None of these

a) 8 Q 4 A 1 M 2 X 16 M 16

Explanation

(a) 8÷4×1-2=16-16

0=0

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

S: Subtraction

T: Multiplication

U: Division

V: Equal to

W: Greater than

X: Less than

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

a) 16 T 2 R 4 U 6 X 8

b) 16 R 2 S 4 V 6 R 8

c) 16 T 2 U 4 V 6 R 8

d) 16 U 2 R 4 S 6 W 8

e) None of these

b) 16 R 2 S 4 V 6 R 8

Explanation

(b) 16+2-4=6+8

14=14

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

S: Subtraction

T: Multiplication

U: Division

V: Equal to

W: Greater than

X: Less than

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

a) 20 U 4 R 4 X 2 T 3

b) 20 S 4 U 4 V 2 T 3

c) 20 T 4 U 4 2 X 3

d) 20 R 4 U 4 S 2 W 3

e) None of these

d) 20 R 4 U 4 S 2 W 3

Explanation

(d) 20+4÷4-2>3

19>3

5) In the following questions, different letters stand for various symbols as indicated below:

S: Subtraction

T: Multiplication

U: Division

V: Equal to

W: Greater than

X: Less than

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

a) 15 U 5 R 3 V 2 T 3

b) 15 U 5 W 3 R 2 T 3

c) 15 S 5 T 3 W 2 R 3

d) 15 R 5 U 3 V 2 R 3

e) None of these

a) 15 U 5 R 3 V 2 T 3

Explanation

(a) 15÷5+3=2×3

6=6

6.In the following questions, different letters stand for various symbols as indicated below:

S: Subtraction

T: Multiplication

U: Division

V: Equal to

W: Greater than

X: Less than

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

a) 24 U 3 R 2 S 2 W 8

b) 24 S 3 X 2 T 2 U 8

c) 24 R 3 S 2 X 2 T 8

d) 24 U 3 T 2 V 2 T 8

e) None of these

d) 24 U 3 T 2 V 2 T 8

Explanation

(d) 24÷3×2=2×8

16=16

7) In the following questions, different letters stand for various symbols as indicated below:

S: Subtraction

T: Multiplication

U: Division

V: Equal to

W: Greater than

X: Less than

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

a) 30 R 6 U 2 W 4 T 3

b) 30 S 6 S 2 X 4 T 3

c) 30 S 6 U 2 W 4 T 3

d) 30 U 6 R 2 W 4 T 3

e) None of these

a) 30 R 6 U 2 W 4 T 3

Explanation

(a) 30+6÷2>4×3

33>12

8) If α means ‘greater than’, means ‘equal to’, means ‘not less than’, means ‘less than’, means ‘not equal to’ and η means ‘not greater than’, then which of the four alternatives could be a correct or proper inference in each of the following?

a α 2b and 2b θ r

a) a η r

b) a α r

c) a β r

d) a γ r

e) None of these

Explanation

(b)  (aα2b) and (2bϴr) => a>2b and 2b≥r

a>2b and 2b ≥r = a>r i.e., a α r

9. If α means ‘greater than’, means ‘equal to’, means ‘not less than’, means ‘less than’, means ‘not equal to’ and η means ‘not greater than’, then which of the four alternatives could be a correct or proper inference in each of the following?

2x δ y and y β 3z

a) y δ 6x

b) 2x η 3z

c) 2x δ 3z

d) 3z η 3y

e) None of these

c) 2x δ 3z

Explanation

(c) (2xδy) and (y β3z)

2x≠y and y= 3z

2x ≠3z i.e.,2x δ 3z

10. In the following questions, the symbols *, , %, @ and © are used with the following meaning as illustrated below:

‘P % Q’ means ‘P is not smaller than Q’.

‘P © Q’ means ‘P is neither smaller than nor equal to Q.

‘P * Q’ means ‘P is neither greater than nor equal to Q’.

‘P δ Q’ means ‘P is not greater than Q’.

‘P @ Q’ means ‘P is neither greater than nor smaller than Q’.

Now, in each of the following questions, assuming the given statements to be true, find which of the three conclusions I, II and III given below them is/are definitely true and give your answer accordingly.

Statements:

V % H, H @ F, F δ E

Conclusions:

I. F @ V

II. F * V

III. E % H

a) Only either I or II is true

b) Only III is true

c) Only I and II are true

d) All I, II and III are true

e) Only either I or II and III are true