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- Question
- Select the correct combination of mathematical signs to replace * signs and to balance the given equation.
9 * 3 * 3 * 3 * 6
Options- A. ÷ x - =
- B. + - x =
- C. - + + =
- D. x + - =
- Correct Answer
- ÷ x - =
Explanation? 9 ÷ 3 x 3 - 3 = 6 ? 3 x 3 - 3 = 6
? 9 - 3 = 6 ? 6 = 6 - 1. Select the correct combination of mathematical signs to replace * signs and to balance the given equation.
16 * 6 * 4 * 24
Options- A. ÷ = x
- B. x = ÷
- C. = ÷ ÷
- D. x ÷ = Discuss
- 2. In the following question, * stands for any of the mathematical signs at different places, which are given as choices under each question. Select the choice with the correct sequence of signs which when substituted makes the question as a correct equation.
24 * 4 * 5 * 4
Options- A. x + =
- B. = x +
- C. + x =
- D. = + x Discuss
- 3. If 73 + 82 = 14, 91 + 21 = 11, then 86 + 24 =?
Options- A. 9
- B. 62
- C. 8
- D. 6 Discuss
- 4. Which sequence of mathematical symbols can replace *in the given equation to balance the equation?
7 * 7 * 2 * 1 = 12
Options- A. x - ÷
- B. + - x
- C. x - +
- D. + x - Discuss
- 5. 65 40 11 = 36
Options- A. - and +
- B. x and ÷
- C. ÷ and +
- D. + and x Discuss
- 6. Select the correct combination of mathematical signs to replace * signs and to balance the given equation.
8 * 6 * 96 * 2 = 0
Options- A. x ÷ -
- B. x - ÷
- C. - x ÷
- D. ÷ - x Discuss
- 7. Which of the following interchange of number would make the given equation correct?
8 x 20 ÷ 3 + 9 - 5 = 38
Options- A. 3, 9
- B. 3, 8
- C. 8, 9
- D. 3, 5 Discuss
- 8. Which of the following interchange of sing or numbers would make the given equation correct?
(18 ÷ 9) + 3 x 5 = 45
Options- A. x ÷
- B. + ÷
- C. 18 and 5
- D. 3 and 9 Discuss
- 9. Which of the following interchange of sing or numbers would make the given equation correct?
5 + 6 ÷ 3 - 12 x 2 = 17
Options- A. ÷ and x
- B. + and x
- C. + and ÷
- D. + and - Discuss
- 10. 15 8 21
p 3 27
If 'p' is the resultant of the first row, what will be the resultant of the second row?
Options- A. 58
- B. 76
- C. 27
- D. 82 Discuss
Mathematical Operations problems
Search Results
Correct Answer: x ÷ =
Explanation:
Apply all option one by one
? 16 x 6 ÷ 4 = 24
? 96/4 = 24 ? 24 = 24
Correct Answer: = x +
Explanation:
From option (b),
24 = 4 x 5 + 4
? 24 = 20 + 4 ? 24 = 24
Correct Answer: 8
Explanation:
As, 73 + 82 = 14
? (7 - 3) + (8 + 2) = 14
? 4 + 10 = 14
? 14 = 14 and 91 + 21 = 11
? (9 - 1) + (2 + 1) = 11
? 8 + 3 = 11 ? 11 = 11
Similarly, 86 + 24 = (8 - 6) + (2 + 4) = 2 + 6 = 8
Correct Answer: + - x
Explanation:
Given, 7 * 7 * 2 * 1 = 12
Let us check all the options one by one.
From option (a), putting the signs in given equation, we get
7 x 7 - 2 ÷ 1 = 12 ? 7 x 7 - 2 = 12
? 49 - 2 = 12 ? 47 = 12
? LHS ? RHS
So, option (a) is incorrect.
From option (b), putting the signs in given equation, we get
7 + 7 - 2 x 1 = 12 ? 7 + 7 - 2 = 12
? 14 - 2 = 12 ? 12 = 12
Hence, option (b) is correct and there is no need to check remaining options .
Correct Answer: - and +
Explanation:
Let us check all the options one by one.
From option (a),
65 - 40 + 11 = 36 ? 76 - 40 = 36
? 36 = 36 ? LHS = RHS
So, option (a) is correct and hence there is no need to check remaining options.
Correct Answer: x - ÷
Explanation:
? 8 * 6 * 96 * 2 = 0
? 8 x 6 - 96 ÷ 2 = 0
? 48 - 48 = 0
Correct Answer: 3, 5
Explanation:
? 8 x 20 ÷ 3 + 9 - 5 = 38 ? 8 x 20 ÷ 5 + 9 - 3 = 38
? 8 x 4 = 9 - 3 = 38 ? 32 + 9 - 3 = 38
Correct Answer: + ÷
Explanation:
? (18 ÷ 9) + 3 x 5 = 45
? (18 + 9) ÷ 3 x 5 = 45 ? 27 ÷ 3 x 5 = 45
Correct Answer: ÷ and x
Explanation:
Apply all option one by one.
? 5 + 6 x 3 - 12 ÷ 2 = 17
? 5 + 18 - 6 = 17 ? 23 - 6 = 17
Correct Answer: 58
Explanation:
Rules
(i) (odd number) + (Composite odd number)
(ii) (Even number) + (Odd number)
(iii) (Even number) ? (Perfect square number), then (Perfect square number) - (Even number)
(iv) (Odd number) ÷ (Prime odd number)
(v) (Odd number) - (Even number)
1st Row 15 8 21 ? 15 - 8 = 7 [rule (v)]
? 7 + 21 = 28 [rule (i)]
2nd Row p 3 27 ? 28 3 27
? 28 + 3 = 31 [rule (ii)]
? 31 + 27 = 58 [rule (i)]
? Resultant of second row = 58
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