Directions (QDirections (Qs. 1 - 5): Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.s. 1 - 5): Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
1. 90 * 15 * 60 * 15 * 20 = 355
A) ×, +, −, ÷ B) ×, ÷, +, − C) ÷, ×, +, − D) ÷, ×, −, +
Explanation: 90 ÷ 15 × 60 + 15 − 20 = 355
Ans: C
2. 100 * 306 * 18 * 5 * 10 = 175
A) +, ÷, ×, − B) ×, +, −, ÷ C) ×, ÷, +, − D) ÷, +, −, ×
Explanation: 100 + 306 ÷ 18 × 5 − 10 = 175
Ans: A
3. 220 * 102 * 195 * 26 * 20 = 268
A) ×, −, +, ÷ B) −, +, ÷, × C) +, ÷, ×, − D) +, −, ÷, ×
Explanation: 220 − 102 + 195 ÷ 26 × 20 = 268
Ans: B
4. 64 * 41 * 217 * 31 * 12 = 21
A) +, ÷, ×, − B) ×, −, +, ÷ C) +, −, ×, ÷ D) +, −, ÷, ×
Explanation: 64 + 41 − 217 ÷ 31 × 12 = 21
Ans: D
5. 506 * 22 * 14 * 10 * 200 = 83
A) ×, −, +, ÷ B) ÷, ×, +, − C) ÷, −, ×, + D) +, −, ÷, ×
Explanation: 506 ÷ 22 − 14 × 10 + 200 = 83
Ans: C
Directions (Qs. 6 - 10): Which of the following interchange of signs would make the given equation correct?
6. 140 − 10 ÷ 128 × 16 = 60
A) +, − B) −, ÷ C) −, × D) ÷, ×
Explanation: 140 − 10 × 128 ÷ 16 = 60
Ans: D
7. 315 ÷ 45 × 20 − 100 + 89 = 151
A) −, ÷ B) −, + C) ÷ , × D) −, ×
Explanation: 315 ÷ 45 × 20 + 100 − 89 = 151
Ans: B
8. 80 × 135 − 15 + 80 ÷ 125 = 675
A) −, × B) +, − C) −, ÷ D) ÷, ×
Explanation: 80 × 135 ÷ 15 + 80 − 125 = 675
Ans: C
9. (109 + 63) − 26 × 217 ÷ 14 = 449
A) −, × B) −, ÷ C) ÷, × D) +, −
Explanation: (109 − 63) + 26 × 217 ÷ 14 = 449
Ans: D
10. (40 − 35) ÷ 28 + 107 × 55 = 102
A) ÷, × B) −, × C) +, − D) +, ×
Explanation: (40 × 35) ÷ 28 + 107 − 55 = 102
Ans: B
11. If ‘&’ means ‘minus’, ‘>’ means ‘plus’, ‘#’ means ‘multiplied by’ and ‘∗’ means ‘divided by’ then what would be the value of 300 > 129 ∗ 33 # 11 & 122
A) 240 B) 350 C) 166 D) 221
Explanation: 300 > 129 ∗ 33 # 11 & 122
= 300 + 129 ÷ 33 × 11 − 122 = 221
Ans: D
12. If ‘&’ means ‘minus’, ‘>’ means ‘plus’, ‘#’ means ‘multiplied by’ and ‘∗’ means ‘divided by’ then what would be the value of 8 # 52 & 43 > 84 ∗ 6
A) 387 B) 446 C) 404 D) 434
Explanation: 8 # 52 & 43 > 84 ∗ 6
= 8 × 52 − 43 + 84 ÷ 6 = 387
Ans: A
13. If ‘&’ means ‘minus’, ‘>’ means ‘plus’, ‘#’ means ‘multiplied by’ and ‘∗’ means ‘divided by’ then what would be the value of 60 > 15 # 153 ∗ 27 & 27
A) 140 B) 144 C) 118 D) 133
Explanation: 60 > 15 # 153 ∗ 27 & 27
= 60 + 15 × 153 ÷ 27 − 27 = 118
Ans: C
14. If ‘&’ means ‘minus’, ‘>’ means ‘plus’, ‘#’ means ‘multiplied by’ and ‘∗’ means ‘divided by’ then what would be the value of 306 ∗ 18 # 5 > 70 & 50
A) 145 B) 105 C) 154 D) 231
Explanation: 306 ∗ 18 # 5 > 70 & 50
= 306 ÷ 18 × 5 + 70 − 50 = 105
Ans: B
15. If ‘&’ means ‘minus’, ‘>’ means ‘plus’, ‘#’ means ‘multiplied by’ and ‘∗’ means ‘divided by’ then what would be the value of 58 # 450 ∗ 15 & 122 > 60
A) 1480 B) 1130 C) 1678 D) 1051
Explanation: 58 # 450 ∗ 15& 122 > 60
= 58 × 450 ÷ 15 − 122 + 60 = 1678
Ans: C
16. Select the correct combination of mathematical signs to replace signs and to balance the following equation: 350 ∗ 124 ∗ 936 ∗ 18 = 278
A) ÷, ×, − B) +, ÷, − C) −, +, ÷ D) ×, −, +
Explanation: 350 − 124 + 936 ÷ 18 = 278
Ans: C
17. Select the correct combination of mathematical signs to replace signs and to balance the following equation: 116 ∗ 290 ∗ 58 ∗ 11 = 171
A) −, +, ÷ B) +, ÷, × C) ÷, ×, + D) −, +, ×
Explanation: 116 + 290 ÷ 58 × 11 = 171
Ans: B
18. Select the correct combination of mathematical signs to replace * signs and to balance the following equation: 954 ∗ 36 ∗ 22 ∗ 110 = 693
A) ÷, ×, + B) ÷, ×, − C) +, ×, − D) +, ×, ÷
Explanation: 954 ÷ 36 × 22 + 110 = 693
Ans: A
19. Select the correct combination of mathematical signs to replace *signs and to balance the following equation:3456 ∗ 93 ∗ 15 ∗ 36 = 3009
A) +, ×, ÷ B) +, ×, − C) ×, ÷, + D) +, −, ×
Explanation: 3456 + 93 − 15 × 36 = 3009
Ans: D
20. Select the correct combination of mathematical signs to replace signs and to balnce the following equation: 396 ÷ 18 × 30 + 16 = 676
A) −, ×, + B) +, ×, ÷ C) ÷, ×, + D) ÷, +, −
Explanation: 396 ÷ 18 × 30 + 16 = 676
Ans: C
21. Which interchange of signs will make the following equation correct? 102 × 102 ÷ 102 − 102 + 102 = 102
A) + and ÷ B) + and − C) − and × D) No change required
Explanation: 102 × 102 ÷ 102 − 102 + 102 = 102
Ans: D
22. If ‘+’ means ‘divided by’, ‘−’ means ‘added to’, ‘×’ means ‘subtracted from’ and ‘÷’ means ‘multiplied by’, then what is the value of 40 ÷ 21 − 162 + 9
A) 358 B) 240 C) 402 D) 858
Explanation: 40 ÷ 21 − 162 + 9 = 40 × 21 + 162 ÷ 9 = 858
Ans: D
23. If ‘+’ means ‘divided by’, ‘−’ means ‘added to’, ‘×’ means ‘subtracted from’ and ‘÷’ means ‘multiplied by’, then what is the value of 4 ÷ 23 − 189 + 9 × 12
A) 193 B) 101 C) 300 D) 150
Explanation: 4 ÷ 23 − 189 + 9 × 12 = 4 × 23 + 189 ÷ 9 − 12 = 101
Ans: B
24. If ‘+’ means ‘divided by’, ‘−’ means ‘added to’, ‘×’ means ‘subtracted from’ and ‘÷’ means ‘multiplied by’, then what is the value of 126 + 36 ÷ 44 × 19 − 75
A) 210 B) 156 C) 146 D) 166
Explanation: 126 + 36 ÷ 44 × 19 − 75 = 126 ÷ 36 × 44 − 19 + 75 = 210
Ans: A
25. If ‘+’ means ‘divided by’, ‘−’ means ‘added to’, ‘×’ means ‘subtracted from’ and ‘÷’ means ‘multiplied by’, then what is the value of 900 + 36 ÷ 47 × 100 − 53
A) 1128 B) 1843 C) 1933 D) 1837
Explanation: 900 + 36 ÷ 47 × 100 − 53 = 900 ÷ 36 × 47 − 100 + 53 = 1128
Ans: A
26. If ÷ means ×, × means +, + means − and − means ÷, then find the value of 58 × 26 + 108 − 27 ÷ 30
A) −15 B) −36 C) 20 D) 44
Explanation: 58 × 26 + 108 − 27 ÷ 30 = 58 + 26 − 108 ÷ 27 × 30 = −36
Ans: B
27. If ÷ means ×, × means +, + means − and − means ÷, then find the value of 63 − 18 + 25 × 36 ÷ 8
A) 160.2 B) 255.6 C) 164.5 D) 266.5
Explanation: 63 − 18 + 25 × 36 ÷ 8 = 63 ÷ 18 − 25 + 36 × 8 = 266.5
Ans: D
28. If ÷ means ×, × means +, + means − and − means ÷, then find the value of 450 + 264 − 12 ÷ 10 × 45
A) 388 B) 391 C) 390 D) 275
Explanation: 450 + 264 − 12 ÷ 10 × 45 = 450 − 264 ÷ 12 × 10 + 45 = 275
Ans: D
29. If ÷ means ×, × means +, + means − and − means ÷, then find the value of 112 ÷ 3 × 83 + 320 − 16
A) 525 B) 399 C) 630 D) 696
Explanation: 112 ÷ 3 × 83 + 320 − 16 = 112 × 3 + 83 − 320 ÷ 16 = 399
Ans: B
30. If ! means +, @ means − , # means × and & means ÷, then what is the value of 150 & 45 # 30 ! 63 @ 34
A) 136 B) 140 C) 129 D) 159
Explanation: 150 & 45 # 30 ! 63 @ 34 = 150 ÷ 45 × 30 + 63 − 34 = 129
Ans: C
Previously Asked Questions
1. If '' means 'plus', '=' means 'multiplied by' and ‘$’ means 'divided' by', then what would be the value of 27 > 81 $ 9 < 6?
A) 30 B) 33 C) 36 D) 54
Explanation: Using the correct symbols, we have:
Given expression = 27 + 81 ÷ 9 − 6
= 27 + 9 − 6 = 36 − 6 = 30
Ans: A
2. If '+' means 'divided by', '−' means 'added to', ‘×’ means ‘subtracted from’ and ‘÷’ means 'multiplied by', then what is the value of 24 ÷ 12 − 18 + 9?
A) −25 B) 0.72 C) 15.30 D) 290
Explanation: Using the correct symbols, we have:
Given expression = 24 × 12 + 18 ÷ 9 = 288 + 2 = 290
Ans: D
3. If $ means +, # means −, @ means × and ∗ means ÷, then what is the value of 16 $ 4 @ 5 # 72 ∗ 8?
A) 25 B) 27 C) 29 D) 36
Explanation: Using the correct symbols, we have:
Given expression = 16 + 4 × 5 − 72 ÷ 8
= 16 + 20 − 9 = 36 − 9 = 27
Ans: B
4. If ÷ means ×, × means +, + means − and − means ÷, find the value of 16 × 3 + 5 − 2 ÷ 4.
A) 9 B) 27 C) 19 D) None of these
Explanation: Using the correct symbols, we have:
Given = 16 + 3 − 5 ÷ 2 × 4 = 16 + 3
5 / 2 × 4 = 19 − 10 = 9 2
Ans: A
5. If + means ÷, ÷ means −, − means ×, × means +, then 12 + 6 ÷ 3 − 2 × 8 = ?
A) −2 B) 2 C) 4 D) 52
Explanation: Using the correct symbols ,we have:
Given = 12 ÷ 6 − 3 × 2 + 8
= 2 − 6 + 8 = 10 − 6 = 4
Ans: C