List of top Questions asked in CBSE Class X

If the mean and mode of a data are 12 and 21 respectively, then its median is :

If \(\Delta ABC\) and \(\Delta DEF\) are similar such that \(2 AB = DE\) and \(BC = 8\) cm, then \(EF\) is equal to :

In the given figure, \(O\) is the centre of circle. \(XYZ\) is an arc of the circle subtending an angle of \(45^{\circ}\) at the centre. If the radius of the circle is 32 cm, then the length of the arc \(XYZ\) is :

For any natural number \(n\), \(6^{n}\) ends with the digit :

The HCF of 960 and 432 is :

The graph of y = f(x) is given.
The number of zeroes of f(x) is :

The total surface area of a solid hemisphere of diameter ‘2d’ is :

If a pair of linear equations in two variables is represented by two coincident lines, then the pair of equations has :

For any natural number n, \(6^n\) ends with the digit :

The length of the arc of the sector of a circle with radius 21 cm and of central angle 60°, is :

A die is thrown once. Probability of getting a number other than 3 is :

Assertion (A) : The probability that a leap year has 53 Mondays is \(\frac{2}{7}\).
Reason (R) : The probability that a non-leap year has 53 Mondays is \(\frac{5}{7}\).

If \(\Delta ABC\) and \(\Delta DEF\) are similar such that \(2 AB = DE\) and \(BC = 8\) cm, then \(EF\) is equal to :

If \(\cos A = 1/2\), then the value of \(\sin^2 A + \cos^2 A\) is :

Given that \(\sin \theta = a/b\), then \(\cos \theta\) is equal to :

If the mean and mode of a data are 12 and 21 respectively, then its median is :

The common difference of the AP : \(\sqrt{2}, 2\sqrt{2}, 3\sqrt{2}, 4\sqrt{2}, \dots\) is :

In the given figure, PA is a tangent from an external point P to a circle with centre O. If \(\angle POB = 125^\circ\), then \(\angle APO\) is equal to :

If TP and TQ are two tangents to a circle with centre O from an external point T so that \(\angle POQ = 120^\circ\), then \(\angle PTQ\) is equal to :

A car is moving away from the base of a 30 m high tower. The angle of elevation of the top of the tower from the car at an instant, when the car is \(10\sqrt{3}\) m away from the base of the tower, is :

The mid-point of the line segment joining the points (5, -4) and (6, 4) lies on :

Assertion (A) : The polynomial \(p(y) = y^2 + 4y + 3\) has two zeroes.
Reason (R) : A quadratic polynomial can have at most two zeroes.

The HCF of 960 and 432 is :

The hour hand of a clock is 7 cm long. The angle swept by it between 7:00 a.m. and 8:10 a.m. is :

The natural number 2 is :