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- Question
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
- Correct Answer
- 5 x 4 + 20 = 104
ExplanationOn 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. - 1. 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
- 2. 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
- 3. 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
- 4. 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 Discuss
- 5. 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
- 6. 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
- 7. If × means ÷, - means ×, ÷ means + and + means- than (3 - 15 ÷ 19) × 8 + 6 = ?
Options- A. 8
- B. 4
- C. 2
- D. -1 Discuss
- 8. 12:30 :: 14: ?
Options- A. 36
- B. 28
- C. 35
- D. 42 Discuss
- 9. If Q means 'add to', J means 'multiply by', T means 'substract from' and K means 'divide by' then 30 K 2 Q 3 J 6 T 5 = ?
Options- A. 18
- B. 28
- C. 31
- D. 103 Discuss
- 10. In a group of buffaloes and ducks the number of legs are 24 more than twice the number of heads. What is the number of buffaloes in the group ?
Options- A. 6
- B. 18
- C. 12
- D. 24 Discuss
Mathematical Operations problems
Search Results
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: 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: - 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: A + C = B + D
Explanation:
Given,
A + B = 2C ----(i)
C + D = 2A----(ii)
Adding (i) and (ii) we get : A + B + C + D = 2C + 2A
=> B + D = A + C
Correct Answer: 1
Correct Answer: -, +, x
Explanation:
Clearly 5 - 0 + 3 X 5 = 20
Correct Answer: 2
Explanation:
By the given data, we have the expression :
(3 × 15 + 19) ÷ 8 - 6 = (45 + 19) ÷ 8 - 6 = 64 ÷ 8 - 6 = 8 - 6 = 2
Correct Answer: 35
Explanation:
Here 12 x 2.5 = 30
In the same way 14 x 2.5 = 35
Correct Answer: 28
Explanation:
Using Correct Symbols , We have :
Given expression = 30 / 2 + 3 x 6 - 5 = 15 + 18 - 5 = 28
Correct Answer: 12
Explanation:
Let the number of buffaloes be x
and number of ducks be y.
Now, number of heads = x+y
Number of legs = 4x+2y .......(1)
But given that legs = 2(x+y)+24 ......(2)
solving (1) & (2),we get
4x+2y=2x+2y+24
--> x=12.
Therefore number of buffaloes =12
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