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MCQ: Mathematical Operations- 2 - SSC CGL MCQ


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15 Questions MCQ Test - MCQ: Mathematical Operations- 2

MCQ: Mathematical Operations- 2 for SSC CGL 2024 is part of SSC CGL preparation. The MCQ: Mathematical Operations- 2 questions and answers have been prepared according to the SSC CGL exam syllabus.The MCQ: Mathematical Operations- 2 MCQs are made for SSC CGL 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for MCQ: Mathematical Operations- 2 below.
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MCQ: Mathematical Operations- 2 - Question 1

Which of the following interchange of sing or numbers would make the given equation correct ?
(18 ÷ 9) + 3 x 5 = 45

Detailed Solution for MCQ: Mathematical Operations- 2 - Question 1

∵ (18 ÷ 9) + 3 x 5 = 45
⇒ (18 + 9) ÷ 3 x 5 = 45
⇒ 27 ÷ 3 x 5 = 45

MCQ: Mathematical Operations- 2 - Question 2

Which of the following interchange of sing or numbers would make the given equation correct ?
5 + 6 ÷ 3 - 12 x 2 = 17

Detailed Solution for MCQ: Mathematical Operations- 2 - Question 2

Apply all option one by one.
∵ 5 + 6 x 3 - 12 ÷ 2 = 17
⇒ 5 + 18 - 6 = 17 ⇒ 23 - 6 = 17

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MCQ: Mathematical Operations- 2 - Question 3

If '+' mean '-', '-' means 'x', 'x' means '÷' and '÷' means '+', then value of 16 x 2 ÷ 25 + 7 - 4 is

Detailed Solution for MCQ: Mathematical Operations- 2 - Question 3

16 x 2 ÷ 25 + 7 - 4
= 16 ÷ 2 + 25 - 7 x 4
= 8 + 25 - 28
= 25 - 20 = 5

MCQ: Mathematical Operations- 2 - Question 4

If '-' stands for '÷', '+' stands for 'x', '÷' stands for '-' and 'x' stands for '+', find out which one is correct?

Detailed Solution for MCQ: Mathematical Operations- 2 - Question 4

From option (b),
49 - 7 + 3 ÷ 5 x 8 = 24
Change the sign, as per the question,
49 ÷ 7 x 3 - 5 + 8 = 24
⇒ 7 x 3 - 5 + 8 = 24
⇒ 21 - 5 + 8 = 24
∴ 24 = 24

MCQ: Mathematical Operations- 2 - Question 5

Select the correct combination of mathematical signs to replace '*' signs and to balance the following equation.
6 * 4 * 12 * 12

Detailed Solution for MCQ: Mathematical Operations- 2 - Question 5

6 * 4 * 12 * 12
From option (d),
6 x 4 - 12 = 12
⇒ 12 = 12

MCQ: Mathematical Operations- 2 - Question 6

If 'x' stands for '+', '<' for '-', '+' for ' ÷', '>' for 'x', '-' for '=', ' ÷' for '>' and '=' for '<', then state which of the following is true ?

Detailed Solution for MCQ: Mathematical Operations- 2 - Question 6

Using the proper symbols in (c), we get
5 x 2 ÷ 2 < 10 - 4 + 8
⇒ 5 x 1 < 18 - 4 ⇒ 5 < 14
which is true.

MCQ: Mathematical Operations- 2 - Question 7

If '-' stands for '÷', '+' stands for '-', '÷' stands for 'x', 'x' stands for '+', then which one of the following equation is correct?

Detailed Solution for MCQ: Mathematical Operations- 2 - Question 7

Change the proper sign according to question and try all option one by one by applying the BODMAS Rule.
'-' ⇒ ÷
'+' ⇒ '-'
÷ ⇒ 'x'
'x' ⇒ '+'
∴ 70 ÷ 2 - 4 x 5 + 6 = 21
⇒ 35 - 20 + 6 = 21
⇒ 15 + 6 = 21
⇒ 21 = 21

MCQ: Mathematical Operations- 2 - Question 8

If '+' means '÷', '-' means '+', 'x' means '-' and '÷' means 'x', then what is the value of 24 ÷ 12 - 18 + 9 ?

Detailed Solution for MCQ: Mathematical Operations- 2 - Question 8

Using the proper symbols, we have
24 ÷ 12 - 8 + 9
Now Apply the BODMAS Rule,
= 24 x 12 + 18 ÷ 9
= 288 + 2 = 290

MCQ: Mathematical Operations- 2 - Question 9

if 'R' means '÷', 'Q' means 'x', 'P' means '+', then 1 8 R 9 P 2 Q 8 = ?

Detailed Solution for MCQ: Mathematical Operations- 2 - Question 9

Using the correct symbols, we have
1 8 R 9 P 2 Q 8
= 18 ÷ 9 + 2 x 8
= 2 + 2 x 8 = 2 + 16
= 18

MCQ: Mathematical Operations- 2 - Question 10

Select the correct combination of mathematical signs to replace '*' signs and to balance the given equation.
24 * 34 * 2 * 5 * 12

Detailed Solution for MCQ: Mathematical Operations- 2 - Question 10

From option (c),
24 = 34 ÷ 2 - 5 + 12
⇒ 24 = 17 - 5 + 12
⇒ 24 = 29 - 5
→ 24 = 24

MCQ: Mathematical Operations- 2 - Question 11

If A means '-' , B means '+', C means 'x', and D means '÷' then 32   D   4   B   7   C   2  A  6

Detailed Solution for MCQ: Mathematical Operations- 2 - Question 11

32   D  4   B 7   C 2   A 6
= 32 ÷ 4 + 7 x 2 - 6 = 8 + 7 x 2 - 6
= 8 + 14 - 6 = 22 - 6 = 16

MCQ: Mathematical Operations- 2 - Question 12

If K denotes 'X', B denotes '÷', 'T' denotes '-' and 'M' denotes '+', then 40   B   8   T   6   M 3   K   4 = ?

Detailed Solution for MCQ: Mathematical Operations- 2 - Question 12

∵ 40   B   8   T   6   M 3   K   4 = ?
⇒ 40 ÷ 8 - 6 + 3 x 4 = ?
⇒ 5 - 6 + 12 = ?
⇒ 17 - 6 = ?
∴ ? = 11

MCQ: Mathematical Operations- 2 - Question 13

Direction: What should be the correct signs to balance the following equations ?

7   4   8   2 = 24
 

Detailed Solution for MCQ: Mathematical Operations- 2 - Question 13

Let us check all the options one-by-one.
From option (a),
7 - 4 x 8 x 2 = 24 (using VBODMAS rule)
⇒ 7 - 64 = 24 ⇒ -57 = 24
∴ LHS ≠ RHS ≠ RHS
So, option (a) is incorrect.

From option (b),
7 - 4 x 8 ÷ 2 = 24 (using VBODMAS rule)
⇒ 7 - 4 x 8 ÷ 2 = 24 (using VBODMAS rule)
⇒ 7 - 4 x 4 = 24 ⇒ 7 - 16 = 24
⇒ -9 = 24 ⇒ LHS ≠ RHS
So, option (b) is incorrect .
From option (c),
7 x 4 - 8 ÷ 2 = 24 (using VBODMAS rule)
⇒ 7 x 4 - 4 = 24 ⇒ 28 - 4 = 24
⇒ 24 = 24 ⇒ LHS = RHS
So, option (c) is correct and hence, there is no need to check option (d).

MCQ: Mathematical Operations- 2 - Question 14

If 264 * 2 = 6, 870 * 3 = 11, then what should 735 *5 be ?

Detailed Solution for MCQ: Mathematical Operations- 2 - Question 14

Divide and add all numbers.
As, 264/2 = 132 ⇒ 1 + 3 + 2 = 6
⇒ 870/3 = 290 ⇒ 2 + 9 + 0 = 11
Similarly, 735/5 = 147 ⇒ 1 + 4 + 7
= 12

MCQ: Mathematical Operations- 2 - Question 15

If + = x , - = ÷ , x = + , ÷ = - , then which is the correct equation out of the following ?

Detailed Solution for MCQ: Mathematical Operations- 2 - Question 15

18 + 6 - 4 x 2 ÷ 3 = 26
After chaning, the equation is
L.H.S., 18 x 6 ÷ 4 + 2 - 3
108 ÷ 4 + 2 - 3
27 + 2 - 3
29 - 3 = 26 R.H.S.

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