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Maths 2024 MCQs [All-Courses]

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The point (0, -7) lies in:

A First quadrant

B Second quadrant

C On the x-axis

D On the y-axis

Review Detailed Answer

Correct Answer: On the y-axis
Explanation:

If x = 0 the point lies on the y-axis.
If y = 0 the point lies on the x-axis.
If both x and y are non-zero, the point lies in one of the four quadrants.
Here, the point is (0, -7), where x = 0 and y = - 7.
→ It lies exactly on the y-axis, not in any quadrant

Find the roots of quadratic equation: 3x2 – 7x – 6 = 0?

A -6, 3

B 3, -2/3

C -5, 2

D -9, 2

Review Detailed Answer

Correct Answer: 3, -2/3

Find the roots of quadratic equation: x2 + x – 42 = 0?

A -6, 7

B -8, 7

C 14, -3

D -7, 6

Review Detailed Answer

Correct Answer: -7, 6

Find the roots of quadratic equation: 2x2 + 5x + 2 = 0?

A -2, -1/2

B 4, -1

C 4, 1

D -2, 5/2

Review Detailed Answer

Correct Answer: -2, -1/2

I. 9a2 + 18a + 5 = 0, II. 2b2 + 13b + 20 = 0 to solve both the equations to find the values of a and b?

A If a > b

Review Detailed Answer

Correct Answer: If a > b

I. x2 + 9x + 20 = 0, II. y2 + 5y + 6 = 0 to solve both the equations to find the values of x and y?

A If x < y

Review Detailed Answer

Correct Answer: If x < y

I. x2 – x – 42 = 0, II. y2 – 17y + 72 = 0 to solve both the equations to find the values of x and y?

A If x < y

Review Detailed Answer

Correct Answer: If x < y

I. a2 + 8a + 16 = 0, II. b2 – 4b + 3 = 0 to solve both the equations to find the values of a and b?

A If a < b

Review Detailed Answer

Correct Answer: If a < b

A man could buy a certain number of notebooks for Rs.300. If each notebook cost is Rs.5 more, he could have bought 10 notebooks less for the same amount. Find the price of each notebook?

A 10

B 8

C 15

D 7.50

Review Detailed Answer

Correct Answer: 10

Find the quadratic equations whose roots are the reciprocals of the roots of 2x2 + 5x + 3 = 0?

A 3x2 + 5x – 2 = 0

B 3x2 + 5x + 2 = 0

C 3x2 – 5x + 2 = 0

D 3x2 – 5x – 2 = 0

Review Detailed Answer

Correct Answer: 3x2 + 5x + 2 = 0

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Maths 2024 MCQs [All-Courses]

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All Topics 2024

The point (0, -7) lies in:

Find the roots of quadratic equation: 3x2 – 7x – 6 = 0?

Find the roots of quadratic equation: x2 + x – 42 = 0?

Find the roots of quadratic equation: 2x2 + 5x + 2 = 0?

I. 9a2 + 18a + 5 = 0, II. 2b2 + 13b + 20 = 0 to solve both the equations to find the values of a and b?

I. x2 + 9x + 20 = 0, II. y2 + 5y + 6 = 0 to solve both the equations to find the values of x and y?

I. x2 – x – 42 = 0, II. y2 – 17y + 72 = 0 to solve both the equations to find the values of x and y?

I. a2 + 8a + 16 = 0, II. b2 – 4b + 3 = 0 to solve both the equations to find the values of a and b?

A man could buy a certain number of notebooks for Rs.300. If each notebook cost is Rs.5 more, he could have bought 10 notebooks less for the same amount. Find the price of each notebook?

Find the quadratic equations whose roots are the reciprocals of the roots of 2x2 + 5x + 3 = 0?