CBSE 10 Maths Question Paper-2020 Set-3

For the following frequency distribution: Class: 0–5, 5–10, 10–15, 15–20, 20–25, Frequency: 8, 10, 19, 25, 8. The upper limit of the median class is

The probability of an impossible event is

The discriminant of the quadratic equation 4x² – 6x + 3 = 0 is

If (3, –6) is the mid-point of the line segment joining (0, 0) and (x, y), then the point (x, y) is

The total surface area of a frustum-shaped glass tumbler is (r1 > r2)

The distance between the points (3, -2) and (-3, 2) is

If tan(A + B) = 3 and tan(A - B) = 3/1, 0 < A + B ≤ 90°, A > B, find the values of A and B.

The value of cosA if 2 is a zero of the polynomial ax² – 2x is

The prime factorization of 180 is

The probability of an impossible event is

If the radii of two spheres are in the ratio 2:3, then the ratio of their respective volumes is

If the discriminant of a quadratic equation is positive, the roots are

The equation 3x² + 14x – 5 = 0 has roots

For the equation 4x² + 12x + 9 = 0, the roots are

The probability of selecting a vowel from the English alphabet is

The mean for the distribution: Classes: 5–15, 15–25, 25–35, 35–45; Frequencies: 2, 4, 3, 1

If tan (A + B) = 3 and tan (A - B) = 1/3, 0 < A + B ≤ 90°, A > B, find the values of A and B.

In the given figure, the angle of elevation of the top of a tower AC from a point B on the ground is 60°. If the height of the tower is 20m, find the distance of the point from the foot of the tower.

The value of cosA if cosA = sin42° is

Find the value of x if the terms -6, x, 8 are in Arithmetic Progression (A.P.)

The 11th term of the A.P. –27, –22, –17, –12, ... is

In the given circle, the number of tangents parallel to tangent PQ is

The probability of selecting a vowel from the English alphabet is

Find the mode of the following distribution: Expenditure (in ₹): 200–400, 400–600, 600–800, 800–1000, 1000–1200; Number of employees: 21, 25, 19, 23, 12.

If 6n can end with the digit ‘0’ for any natural number n, the solution is

Solve for x in the quadratic equation: 3x² + 14x - 5 = 0

Find the discriminant of the quadratic equation 4x² – 6x + 3 = 0

The ratio of the areas of two squares is 16:25. The ratio of their sides is

The mean of the following distribution is 12. Find the mode: Classes: 5–15, 15–25, 25–35, 35–45; Frequencies: 3, 8, 5, 4.

Find the 10th term of the arithmetic progression 3, 8, 13, 18, ...