Q. If the diagonal of a square is 10√2 cm, what is the area of the square?
A.
100 cm²
B.
200 cm²
C.
50 cm²
D.
150 cm²
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Solution
The diagonal d of a square is related to the side length s by the formula d = s√2. Therefore, s = d/√2 = 10√2/√2 = 10 cm. The area is s² = 10² = 100 cm².
Correct Answer:
B
— 200 cm²
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Q. If the diagonals of a quadrilateral are equal and bisect each other, which type of quadrilateral can it be?
A.
Trapezium
B.
Rectangle
C.
Rhombus
D.
Parallelogram
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Solution
If the diagonals of a quadrilateral are equal and bisect each other, it can be classified as a rectangle.
Correct Answer:
B
— Rectangle
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Q. If the diagonals of a quadrilateral bisect each other at right angles, which of the following can be concluded?
A.
It is a rectangle.
B.
It is a rhombus.
C.
It is a trapezium.
D.
It is a square.
Show solution
Solution
If the diagonals of a quadrilateral bisect each other at right angles, it indicates that the quadrilateral is a rhombus.
Correct Answer:
B
— It is a rhombus.
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Q. If the diagonals of a quadrilateral bisect each other at right angles, which of the following could it be?
A.
Rectangle
B.
Square
C.
Trapezium
D.
Kite
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Solution
A kite has diagonals that bisect each other at right angles.
Correct Answer:
D
— Kite
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Q. If the diagonals of a quadrilateral bisect each other, which of the following can be concluded? (2023)
A.
The quadrilateral is a rectangle.
B.
The quadrilateral is a rhombus.
C.
The quadrilateral is a parallelogram.
D.
The quadrilateral is a trapezium.
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Solution
If the diagonals of a quadrilateral bisect each other, it is a property of parallelograms.
Correct Answer:
C
— The quadrilateral is a parallelogram.
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Q. If the diagonals of a quadrilateral bisect each other, which of the following can be inferred?
A.
The quadrilateral is a parallelogram.
B.
The quadrilateral is a rectangle.
C.
The quadrilateral is a rhombus.
D.
The quadrilateral is a trapezium.
Show solution
Solution
A quadrilateral with diagonals that bisect each other is a parallelogram, but it can also be a rectangle or rhombus.
Correct Answer:
A
— The quadrilateral is a parallelogram.
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Q. If the diagonals of a quadrilateral bisect each other, which of the following could be true?
A.
It is a rectangle.
B.
It is a trapezium.
C.
It is a parallelogram.
D.
It is a kite.
Show solution
Solution
If the diagonals of a quadrilateral bisect each other, it is a property of parallelograms.
Correct Answer:
C
— It is a parallelogram.
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Q. If the diagonals of a quadrilateral bisect each other, which of the following must be true?
A.
It is a rectangle.
B.
It is a parallelogram.
C.
It is a square.
D.
It is a trapezium.
Show solution
Solution
A quadrilateral with diagonals that bisect each other is a parallelogram.
Correct Answer:
B
— It is a parallelogram.
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Q. If the difference between the compound interest and simple interest on a certain sum of money for 2 years at 10% is $50, what is the principal? (2000)
A.
$1000
B.
$1200
C.
$1500
D.
$2000
Show solution
Solution
The difference between CI and SI for 2 years is given by P * (r^2)/100^2. Setting this equal to $50 and solving gives P = $1500.
Correct Answer:
C
— $1500
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Q. If the difference between the compound interest and simple interest on a certain sum of money for 2 years at 10% per annum is $50, what is the principal? (2000)
A.
$1000
B.
$1200
C.
$1500
D.
$2000
Show solution
Solution
The difference between compound interest and simple interest for 2 years is given by SI * (r/100)^2. Setting this equal to $50 and solving gives Principal = $1200.
Correct Answer:
B
— $1200
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Q. If the difference between the compound interest and simple interest on a sum of money for 2 years at 10% per annum is $50, what is the principal? (2000)
A.
$1000
B.
$1200
C.
$1500
D.
$2000
Show solution
Solution
The difference SI and CI for 2 years is given by P * r^2 / 200. Setting this equal to 50 gives P = $1500.
Correct Answer:
C
— $1500
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Q. If the equation 2x + 3 = 11 is solved for x, what is the value of x?
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Solution
To solve for x, subtract 3 from both sides to get 2x = 8, then divide by 2 to find x = 4.
Correct Answer:
C
— 4
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Q. If the equation 2x + 3y = 12 is transformed into slope-intercept form, what is the slope of the line? (2023)
A.
2
B.
-2
C.
3/2
D.
-3/2
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Solution
Rearranging the equation into slope-intercept form (y = mx + b) gives y = -2/3x + 4, where the slope (m) is -2/3.
Correct Answer:
D
— -3/2
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Q. If the equation 2x + 3y = 6 is transformed into slope-intercept form, what is the slope of the line?
A.
-2
B.
2
C.
-3/2
D.
3/2
Show solution
Solution
Rearranging the equation to y = -2/3x + 2 shows that the slope is -2/3.
Correct Answer:
C
— -3/2
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Q. If the equation 2x - 3 = 7 is solved for x, what is the solution?
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Solution
Adding 3 to both sides gives 2x = 10, and dividing by 2 gives x = 5.
Correct Answer:
B
— 5
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Q. If the equation of a line is given as 2x + 3y = 6, what is the value of y when x = 0?
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Solution
Substituting x = 0 into the equation 2(0) + 3y = 6 gives 3y = 6, thus y = 2.
Correct Answer:
B
— 2
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Q. If the equation of a line is given as 2x - 3y + 6 = 0, what is the y-intercept of the line?
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Solution
To find the y-intercept, set x = 0. The equation becomes -3y + 6 = 0, leading to y = 2.
Correct Answer:
B
— 2
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Q. If the equation of a line is given as 3x - 4y + 12 = 0, what is the y-intercept of the line?
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Solution
To find the y-intercept, set x = 0. The equation becomes -4y + 12 = 0, leading to y = 3.
Correct Answer:
A
— 3
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Q. If the equation of a line is given as 4x - y = 8, what is the y-intercept of the line?
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Solution
Rearranging to y = 4x - 8 shows that the y-intercept is -8.
Correct Answer:
B
— 4
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Q. If the equation of a line is given as y = mx + b, what does 'm' represent?
A.
The y-intercept
B.
The x-intercept
C.
The slope of the line
D.
The constant term
Show solution
Solution
'm' represents the slope of the line in the slope-intercept form of a linear equation.
Correct Answer:
C
— The slope of the line
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Q. If the equation of a line is y = -1/2x + 3, what is the x-intercept?
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Solution
To find the x-intercept, set y = 0. The equation becomes 0 = -1/2x + 3, leading to x = 6.
Correct Answer:
A
— 6
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Q. If the equation of a line is y = -1/2x + 3, what is the y-value when x = 4?
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Solution
Substituting x = 4 into the equation gives y = -1/2(4) + 3 = -2 + 3 = 1.
Correct Answer:
B
— 2
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Q. If the equation of a line is y = -2x + 5, what is the x-intercept?
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Solution
To find the x-intercept, set y = 0: 0 = -2x + 5, which gives x = 2.5.
Correct Answer:
A
— 2.5
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Q. If the equation of a line is y = mx + c, what does 'm' represent?
A.
The y-intercept
B.
The slope
C.
The x-intercept
D.
The distance
Show solution
Solution
'm' in the equation of a line represents the slope, which indicates the steepness and direction of the line.
Correct Answer:
B
— The slope
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Q. If the expansion of (x + y)^5 is written out, which term corresponds to x^3y^2?
A.
The 3rd term
B.
The 4th term
C.
The 5th term
D.
The 6th term
Show solution
Solution
In the expansion of (x + y)^5, the term x^3y^2 corresponds to the 4th term, calculated using the formula C(5, 2)x^3y^2.
Correct Answer:
B
— The 4th term
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Q. If the expansion of (x + y)^n contains a term with x^4y^2, what can be inferred about the value of n?
A.
n must be 6.
B.
n must be greater than 6.
C.
n must be less than 6.
D.
n can be any integer.
Show solution
Solution
In the term x^4y^2, the sum of the exponents (4 + 2) must equal n, hence n = 6.
Correct Answer:
A
— n must be 6.
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Q. If the expansion of (x + y)^n contains a term with x^4y^3, what can be inferred about n?
A.
n must be 7.
B.
n must be greater than 7.
C.
n must be less than 7.
D.
n can be any integer.
Show solution
Solution
The sum of the exponents in the term x^4y^3 is 4 + 3 = 7, hence n must be 7.
Correct Answer:
A
— n must be 7.
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Q. If the expression 3x + 5 = 20 is solved for x, what is the value of x?
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Solution
To solve for x, subtract 5 from both sides to get 3x = 15, then divide by 3 to find x = 5.
Correct Answer:
A
— 5
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Q. If the exterior angle of a regular polygon is 30 degrees, how many sides does it have?
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Solution
The sum of the exterior angles of any polygon is 360 degrees. Therefore, the number of sides can be calculated as 360 / 30 = 12.
Correct Answer:
B
— 12
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Q. If the exterior angle of a triangle is 120 degrees, what is the measure of the smallest interior angle?
A.
30 degrees
B.
40 degrees
C.
60 degrees
D.
80 degrees
Show solution
Solution
The exterior angle is equal to the sum of the two opposite interior angles. If the exterior angle is 120 degrees, the smallest interior angle can be calculated as 180 - 120 = 60 degrees.
Correct Answer:
D
— 80 degrees
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