MATHS MCQS
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- Adjacent angles
- Supplementary angles
- Coterminal angles
- None of these
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Explanation
Coterminal angles have the same initial and terminal sides but differ by full rotations (360°, 720°, etc.).
Example: 30° and 390° are coterminal because 390° = 30° + 360°.
- 700
- 720
- 740
- None of these
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Explanation
600 cartons / 9 days = 66.67 cartons/day (20 machines)
66.67 / 20 = 3.33 cartons/day/machine
18 machines * 3.33 = 60 cartons/day
60 * 12 = 720 cartons
- Rationalization
- Factorization
- Simplification
- None of these
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Explanation
The example illustrates the factorization process:
x² - 9 = (x - 3)(x + 3)
This is a difference of squares, where the expression is factored into two binomials.
The factorization process involves expressing an algebraic expression as a product of simpler expressions, often to simplify or solve equations.
- Commutative property
- Distributive property
- Associative property
- None of these
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Explanation
The Associative property states that the way numbers are grouped in addition or multiplication does not change their sum or product.Examples:
Addition: a + (b + c) = (a + b) + c
Multiplication: a × (b × c) = (a × b) × c
This property holds true for both addition and multiplication, ensuring that the order in which numbers are grouped does not affect the result.
- Incenter
- Centroid
- Median
- None of these
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Explanation
The incenter is the point where the three angle bisectors of a triangle meet.
It is the center of the incircle, the circle that touches all three sides of the triangle.
- Inverse
- Transpose
- Determinant
- None of these
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Explanation
The determinant is a unique real number associated with every square matrix.
It helps determine whether the matrix is invertible.
It is used in solving systems of equations.
- Diagonal matrix
- Scalar matrix
- Row matrix
- None of these
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Explanation
A scalar matrix is a diagonal matrix where all diagonal elements are equal, and all other elements are zero.
Example:
[5 0
0 5]
Here, all diagonal elements are 5, and others are zero.
وہ لکیریں جو ایک دوسرے کو کبھی بھی متصل نہیں کرسکتی ہیں انہیں _____ کہا جاتا ہے؟
- Parallel lines
- Converging lines
- Concurrent lines
- None of these
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Explanation
Parallel lines are lines in a plane that are always the same distance apart and never intersect, no matter how far they are extended.
They have the same slope in geometry and do not meet at any point.
- Less than two
- Less than three
- More than two
- None of these
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Explanation
A polygon is a closed shape formed by straight lines.
It must have at least three sides (e.g., a triangle) and can have more.
- 5 radians
- 2 radians
- 4 radians
- None of these
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Explanation
The formula to find the arc length (I) is:
I = rθ
Given values:
I = 30 cm
r = 6 cm
Rearrange the formula to solve for θ:
θ = I / r
= 30 / 6
= 5 radians
