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- Question
If 'Q ' means ' +', 'J ' means ' X',T ' ' means '- ' and 'K ' means ' ÷ ', then what is the value of18K3Q7J ?
Options- A. 15
- B. 10
- C. 18
- D. 12
- Correct Answer
- 12
- 1. If a - 1a =7,then a2 + 1a2 =?
Options- A. 54
- B. 51
- C. 53
- D. 52 Discuss
- 2. What should come in place of question mark (?) in the following question? (You do not have to calculate the exact value.) (?80.997 - ?25.001) × (?120.98 + ?16.02) = ?
Options- A. 20
- B. 30
- C. 40
- D. 50 Discuss
- 3. What will come in the place of question mark (?) in the following question (You do not have to calculate the exact value)? 53.01 - 345.02 ÷ 22.99 = 2 ×(?)
Options- A. 14
- B. 19
- C. 24
- D. 54 Discuss
- 4. What will come in the place of question mark (?) in the following question (You do not have to calculate the exact value)? (184.002 - 29 ÷ 5) × 29.997 = ?
Options- A. 5140
- B. 5240
- C. 5340
- D. 5440 Discuss
- 5. What will come in the place of question mark (?) in the following question (You do not have to calculate the exact value)? ?(3099.985 ÷ 62.001 + 14.001) = ?
Options- A. 8
- B. 13
- C. 18
- D. 23 Discuss
- 6. Out of the 60 students of a class, 29 took Mathematics, 32 took Biology and 8 took none of the two subjects. How many students took both Mathematics and Biology?
Options- A. 8
- B. 9
- C. 7
- D. 6 Discuss
- 7. ( 1155 ) +(18 ? 6) × 9 =?
Options- A. 113
- B. 115
- C. 100
- D. 110 Discuss
- 8. In the following question, correct the equation by interchanging two signs. 4 x 3 ? 6 ÷ 2 + 7 = 8
Options- A. ? and +
- B. x and ?
- C. ÷ and x
- D. x and + Discuss
- 9. If x = 6+26 , then what is the value of x-1 + 1x-1 ?
Options- A. 2?3
- B. 3?2
- C. 2?2
- D. 3?3 Discuss
- 10. If a + b + c = 27, then what is the value of (a ? 7)3 + (b ? 9)3 + (c ? 11)3 ? 3(a ? 7)(b ? 9)(c ? 11) ?
Options- A. 0
- B. 9
- C. 27
- D. 3 Discuss
Simplification problems
Search Results
Correct Answer: 51
Correct Answer:
Explanation:
Ans.
Approximating the values:
(?81 - ?25) × (?121 + ?16) = ?
(9 - 5) × (11 + 4) = ?
4 × 15 = ?
? = 60
Correct Answer: 19
Explanation:
Ans.
53 - 345 ÷ 23 = 2 ×(?)
53 - 15 = 2 ×(?)
38 = 2 ×(?)
? = 19
Correct Answer: 5340
Explanation:
Ans.
(184 - 6) × 30 = ?
178 × 30 = ?
? = 5340
Correct Answer: 8
Explanation:
Ans.
?(3100 ÷ 62 + 14) = ?
?(50 + 14) = ?
?64 = ?
? = 8
Correct Answer: 9
Explanation:
Number of students who took only Mathematics n(m) = 29
Number of students who took only biology n(b) = 32
Total number of students n(t) = 60
Total number of students of both mathematics and biology n(m b) = 60 - 8 = 52
Total number of students who took both = 32 + 29 - 52 = 9
Correct Answer: 113
Explanation:
Given,( ) +(18 ? 6) =?
=5 + 12 × 9
=5 + 108
=113
Correct Answer: ? and +
Correct Answer: 2?3
Correct Answer: 0
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