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- Question
If A + B = 2C and C + D = 2A, then
Options- A. A + C = B + D
- B. A + C = 2D
- C. A + D = B + C
- D. A + C = 2B
- Correct Answer
- A + C = B + D
ExplanationGiven,
A + B = 2C ----(i)
C + D = 2A----(ii)
Adding (i) and (ii) we get : A + B + C + D = 2C + 2A
=> B + D = A + C
- 1. Identify the diagram that best represents the relationship among classes given below Tennis fans, Cricket players, Students
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 2. The diagram that identify best represents the relationship among the given classes. Doctor, Smoker, Indian, NonSmoker
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 3. Which of the following correctly represents the relationship between A) Peak B) Clouds C) Mountain
Options- A. A)
- B. B)
- C. C)
- D. D) Discuss
- 4. The given ven diagram represents the students who can speak different languages. According to it, the total number of students who can speak exactly two languages is ___.
Options- A. L+M+O
- B. N+L
- C. L+O
- D. L+M+O+N Discuss
- 5. Main street high school has 10 members on its football team and 14 members on its science club. 5 members at the school belong to both the football and science teams. How many students belong to only science club team or football team?
Options- A. 9
- B. 14
- C. 24
- D. 21 Discuss
- 6. Find out the two signs to be interchanged for making following equation correct 5 + 3 x 8 - 12 / 4 =3
Options- A. + and -
- B. - and /
- C. + and x
- D. + and / Discuss
- 7. Given interchanges : Signs + and - , numbers 4 and 8.
Options- A. 4 + 8 - 12 = 12
- B. 4 - 8 + 12 = 0
- C. 8 + 4 - 12 = 24
- D. 8 - 4 + 12 = 8 Discuss
- 8. If × stands for 'addition', ÷ stands for 'subtraction', + stands for 'multiplication' and-stands for 'division', then 20 × 8 ÷ 8 - 4 + 2 = ?
Options- A. 80
- B. 25
- C. 24
- D. 5 Discuss
- 9. Given intercharges : Signs + and x and numbers 4 and 5.
Options- A. 5 x 4 + 20 = 40
- B. 5 x 4 + 20 = 85
- C. 5 x 4 + 20 = 104
- D. 5 x 4 + 20 = 95 Discuss
- 10. Select the correct set of symbols which will fit in the given equation? 5 0 3 5 = 20
Options- A. x, x, x
- B. -, +, x
- C. x, +, x
- D. +, -, x Discuss
Mathematical Operations problems
Search Results
Correct Answer: 1
Correct Answer: 4
Correct Answer: C)
Correct Answer: L+M+O
Correct Answer: 9
Correct Answer: - and /
Explanation:
On interchanging - and /, we get the equation as
5 + 3 x 8 / 12 - 4 = 3
or 5 + 3 x (2/3) - 4 = 3
or 3 = 3, which is true.
Correct Answer: 4 - 8 + 12 = 0
Explanation:
On interchanging + and - and 4 and 8 in (b),
we get the equation as
8 + 4 - 12 = 0
or 12 - 12 = 0
or 0 = 0, which is true.
Correct Answer: 24
Explanation:
By the Given data , We have the expression:
20 + 8 - 8 ÷ 4 × 2 = 20 + 8 - 2 × 2 = 20 + 8 - 4 = 24.
Correct Answer: 5 x 4 + 20 = 104
Explanation:
On interchanging + and x and 4 and 5 in (c),
we get the equation as
4 + 5 x 20 = 104 or 104 = 104, which is true.
Correct Answer: -, +, x
Explanation:
Clearly 5 - 0 + 3 X 5 = 20
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