## Mathematical Operation For SBI PO Set – 11

1) In an imaginary language, the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 are substituted by a, b, c, d, e, f, g, h, I and j. And 10 is written as ba.

(cd + ef) × bc is equal to

a) 684

b) 816

c) 916

d) 1564

e) None of these

b) 816

Explanation

(b) cd=23; ef=45; bc=12

(23+45)×12=816

2) In an imaginary language, the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 are substituted by a, b, c, d, e, f, g, h, I and j. And 10 is written as ba.

baf ÷ bf × d is equal to

a) df

b) cb

c) be

d) d

e) None of these

b) cb

Explanation

(b) baf=105; bf=15; d=3

×3=21=cb

3) In an imaginary language, the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 are substituted by a, b, c, d, e, f, g, h, I and j. And 10 is written as ba.

dc × f – (bf – d) × d is equal to

a) abb

b) abe

c) bce

d) bcf

e) None of these

c) bce

Explanation

(c) dc=32; f=5; bf=15; d=3

124= bce

4) In an imaginary language, the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 are substituted by a, b, c, d, e, f, g, h, I and j. And 10 is written as ba.

bee + fg – (ca × h/be) is equal to

a) bhc

b) bic

c) bib

d) bja

e) None of these

d) bja

Explanation

(d) bee=144; fg=56; ca=20; h=7; be=14

190=bja

5) If ‘-‘ stands for ‘division’, ‘+’ for ‘multiplication’, ‘÷’ for ‘subtraction’ and ‘×’ for ‘addition’, then which one of the following equations is correct?

a) 4 × 5 + 9 – 3 ÷ 4 =15

b) 4 × 5 × 9 + 3 ÷ 4 =11

c) 4 – 5 ÷ 9 × 3 – 4 =17

d) 18 + 6 ÷ 7 × 5 – 2 =18

e) None of these

a) 4 × 5 + 9 – 3 ÷ 4 =15

Explanation

(a) 4+5×9÷3-4=15

6) If ‘+’ stands for ‘division’, ‘÷’ stands for ’multiplication’, ‘×’ stands for ‘subtraction’ and ‘-‘ stands for ‘addition’, which one of the following is correct?

a) 18 ÷ 6 × 7 + 5 – 2 =22

b) 18 × 6 + 7 ÷ 5 – 2 =16

c) 18 ÷ 6 – 7 + 5 × 2 =20

d) 18 + 6 ÷ 7 × 5 – 2 =18

e) None of these

d) 18 + 6 ÷ 7 × 5 – 2 =18

Explanation

(d) 18÷6×7-5+2=18

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

a) 6 + 3 > 8 = 4 + 2 < 1

b) 4 > 6 + 2 × 32 + 4 < 1

c) 8 < 4 + 2 = 6 > 3

d) 14 + 7 > 3 = 6 + 3 > 2

e) None of these

c) 8 < 4 + 2 = 6 > 3

Explanation

(c) 8-4÷2<6+3=6<9

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

a) 14 > 18 + 9 = 16 + 4 < 1

b) 4 > 3 Λ 8 < 1 – 6 + 2 > 24

c) 3 < 6 Λ 4 > 25 = 8 + 4 < 1

d) 12 > 9 + 3 < 6 × 25 + 5 > 6

e) None of these

b) 4 > 3 Λ 8 < 1 – 6 + 2 > 24

Explanation

(b) 4+3×8-1=6÷2+24

27=27

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

a) 13 > 7 < 6 + 2 = 3 Λ 4

b) 9 > 5 > 4 – 18 + 9 > 16

c) 9 < 3 < 2 > 1 × 8 Λ 2

d) 28 + 4 Λ 2 = 6 Λ 4 + 2

e) None of these

b) 9 > 5 > 4 – 18 + 9 > 16

Explanation

(b) 9+5+4=18÷9+16

18=18

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

a) 29 < 18 + 6 = 36 + 6 Λ 4

b) 18 > 12 + 4 × 7 > 8 Λ 2

c) 32 > 6 + 2 = 6 < 7 Λ 2

d) 31 > 1 < 2 = 4 > 6 Λ 7

e) None of these