11)

Which two numbers should be interchanged to make the given equation correct?
63 ÷ 21 - 42 + 8 × 7 = 135

SSC CPO 2020

A)

21 and 42

B)

21 and 8

C)

7 and 63

D)

7 and 21

12)

If 'A' denotes 'addition', 'B' denotes 'multiplication', 'C' denotes 'subtraction', and 'D' denotes 'division', then what will be the value of the following expression?
15 B (14 C 7) A 25 D (18 C 13) C 8 B (2 A 3) = ?

SSC CPO 2020

A)

40

B)

105

C)

70

D)

115

13)

Select the correct sequence of mathematical signs to replace the ∗ signs so as to balance the given equation.
72 ∗ 12 ∗ 8 ∗ 6 ∗ 22 = 32

SSC CPO 2020

A)

+, ÷, ×, -

B)

÷, +, ×, -

C)

÷, -, ×, +

D)

×, +, -, ÷

14)

If '+' is interchanged with '×', and '-' is interchanged with '÷', then which of the following equation is correct ?

SSC CPO 2020

A)

18 ÷ 6 + 24 - 4 × 64 = 50

B)

18 + 6 ÷ 24 - 4 × 64 = 50

C)

18 + 6 × 24 - 4 ÷ 64 = 50

D)

18 - 6 × 24 + 4 ÷ 64 = 50

15)

Which two numbers and two signs can be interchanged so as to balance the given equation ?
16 × 4 + 12 ÷ 4 - 15 = 59

SSC CPO 2020

A)

4 and 12; × and ÷

B)

16 and 12; + and -

C)

15 and 16; × and +

D)

12 and 15; ÷ and -

16)

Select the correct sequence of mathematical signs to replace the * sign so as to balance the given equation.
24 * 4 * 16 * 4 * 15 = 85

SSC CPO 2020

A)

÷, -, +, ×

B)

÷, +, ×, -

C)

-, ÷, +, ×

D)

×, +, ÷, -

17)

If '×' means 'addition', '÷' means 'multiplication', '+' means 'subtraction', and '-' means 'division', then what is the value of the following expression?
16 - 4 × 12 ÷ 3 + 18

SSC CPO 2020

A)

24

B)

30

C)

18

D)

22

18)

Which two digits and signs can be interchanged so as to balance the given equation?
25 - 9 + 42 ÷ 6 × 7 = 15

SSC CPO 2020

A)

5 and 7; - and ÷

B)

9 and 6; + and ×

C)

4 and 6; + and ÷

D)

2 and 5; ÷ and ×