Discussion
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- Question
- Select the correct combination of mathematical signs to replace * signs and to balance the following equation
8 * 8 * 1 * 7 = 8
Options- A. x ÷ +
- B. + ÷ x
- C. ÷ x +
- D. + x ÷
- Correct Answer
- ÷ x +
ExplanationFrom option (c),
8 * 8 * 1 * 7 = 8
? 8 ÷ 8 x 1 + 7 = 8
? 8 = 8 - 1. Given interchanges signs 'x' and '÷'; numbers '4' and '9'
Options- A. 94 x 7 ÷ 47 = 324
- B. 94 x 7 ÷ 97 = 329
- C. 49 x 7 ÷ 49 = 7
- D. 47 x 9 ÷ 94 = 18 Discuss
- 2. Given interchanges signs '-' and ' ÷'; numbers '2' and '6'
Options- A. 32 - 12 ÷ 6 = 30
- B. 36 ÷ 12 - 2 = 1
- C. 32 - 16 ÷ 6 = 1
- D. 36 - 12 ÷ 2 = 30 Discuss
- 3. Given interchanges signs '+' and 'x', numbers '3' and '7'
Options- A. 23 + 17 x 73 = 1241
- B. 37 + 73 x 12 = 112
- C. 23 x 17 + 37 = 428
- D. 23 + 17 x 73 = 388 Discuss
- 4. If P denotes '÷', Q denotes 'x', R denotes '+' and S denotes '-', then
18 Q 1 2 P 4 R 5 S 6
Options- A. 53
- B. 59
- C. 63
- D. 65 Discuss
- 5. If Q means '+', J means 'x', T means '-' and K means '÷' then
30 K 2 Q 3 J 6 T 5 =?
Options- A. 18
- B. 28
- C. 31
- D. 103 Discuss
- 6. If '+' denotes ÷ , '-' denotes x, 'x' denotes - and '÷' denotes +, then
35 + 7 - 5 ÷ 5 x 6 =?
Options- A. 36
- B. 24
- C. 20
- D. 14 Discuss
- 7. 4 - 4 = 12, 6 - 6 = 30, 2 - 2 = 2, 8 - 8 =?
Options- A. 8
- B. 38
- C. 56
- D. 16 Discuss
- 8. 9 * 7 = 32, 13 * 7 = 120, 17 * 9 = 208, 19 * 11 =?
Options- A. 64
- B. 160
- C. 240
- D. 210 Discuss
- 9. If + means ÷, - means x, x mean +, ÷ means -, then
90 + 18 - 6 x 30 ÷ 4 =?
Options- A. 64
- B. 65
- C. 56
- D. 48 Discuss
- 10. If + = x , - = ÷ , x = + , ÷ = - , then which is the correct equation out of the following?
Options- A. 18 ÷ 6 + 4 - 2 ÷ 3 = 22
- B. 18 + 6 - 4 x 2 ÷ 3 = 26
- C. 18 x 6 - 4 + 7 x 8 = 47
- D. 18 - 6 x 7 ÷ 2 + 8 = 63 Discuss
Mathematical Operations problems
Search Results
Correct Answer: 94 x 7 ÷ 97 = 329
Explanation:
(a) 49 ÷ 7 x 97 ? 324
(b) 49 ÷ 7 x 47 = 329
(c) 94 ÷ 7 x 94 ? 7
(d) 97 ÷ 4 x 49 ? 18
Correct Answer: 32 - 16 ÷ 6 = 1
Explanation:
(a) 36 ÷ 16 - 2 ? 30
(b) 32 - 16 ÷ 6 ? 1
(c) 36 ÷ 12 - 2 = 1
(d) 32 ÷ 16 - 6 ? 30
Correct Answer: 23 + 17 x 73 = 388
Explanation:
(a) 27 x 13 + 37 ? 1241
(b) 73 x 37 + 12 ? 112
(c) 27 + 13 x 73 ? 428
(d) 27 x 13 + 37 = 388
Correct Answer: 53
Explanation:
Using the correct symbols, we have
18 Q 1 2 P 4 R 5 S 6
= 18 x 12 ÷ 4 + 5 - 6
= 18 x 3 + 5 - 6
= 54 + 5 - 6 = 59 - 6 = 53
Correct Answer: 28
Explanation:
Using the correct symbols, we have
30 K 2 Q 3 J 6 T 5
= 30 ÷ 2 + 3 x 6 - 5
= 15 + 18 - 5 = 33 - 5 = 53
Correct Answer: 24
Explanation:
According to the question,
35 ÷ 7 x 5 + 5 - 6 = ?
? 5 x 5 + 5 - 6 = ?
? 25 + 5 - 6 = ?
? 30 - 6 = 24
Correct Answer: 56
Explanation:
As, 4 - 4 ? 4 x 4 - 4 = 12
6 - 6 ? 6 x 6 - 6 = 30
2 - 2 ? 2 x 2 - 2 = 2
Similarly, 8 - 8 ? 8 x 8 - 8 = 56
Correct Answer: 240
Explanation:
As, 9 * 7 ? (9 + 7) (9 - 7) = 16 x2 = 32
13 * 7 ? (13 + 7) (13 - 7) = 20 x 6 = 120
17 * 9 ? (17 + 9) (17 - 9) = 26 x 8 = 208
Similarly, 19 * 11 ? (19 + 11) (19 - 11) = 30 x 8 = 240
? ? = 240
Correct Answer: 65
Explanation:
65
Correct Answer: 18 + 6 - 4 x 2 ÷ 3 = 26
Explanation:
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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