| Find the sum of first 25 terms of the A.P. |
| Solve for x: |
| In the given figure, ABCD is a rectangle of dimensions 21 cm x 14 cm |
| If the pair of linear equations x − y = 1, x + ky = 5 has a unique solution x = 2, y = 1, then the value of k is |
| The dimensions of a solid iron cuboid are 4.4 m x 2.6 m x 1.0 m |
| DE II BC. Find the length of side AD, given that AE = 1.8 cm |
| Two right triangles ABC and DBC are drawn on the same hypotenuse BC |
| Calculate the median salary of the data |
| Observe the figures given below carefully and answer the questions |
| Khushi wants to organize her birthday party |
| Use of mobile screen for long hours makes your eye sight weak and give you headaches |
| The boilers are used in thermal power plants to store water and then used to produce steam |
| The following table gives the monthly consumption of electricity of 100 families |
| In an A.P, if and |
| From the top of a 7 m high building, the angle of elevation of the top |
| The shadow of a tower standing on a level ground is found to be 40 m |
| Two concentric circles with centre O are of radii 3 cm and 5 cm |
| Prove that the lengths of tangents drawn from an external point to a circle are equal |
| Find the area of the sector of a circle of radius 7 cm |
| A die is rolled once. Find the probability of getting |
| Find the values of a and b for which the system of linear equations |
| A lending library has a fixed charge for first three days |
| Prove that |
| Find the zeroes of the quadratic polynomial |
| In the adjoining figure, A, B and C are points on OP, OQ and OR |
| In the adjoining figure, PT is a tangent at T to the circle with centre O. If , find the value of x |
| Find the roots of the quadratic equation |
| Find the discriminant of the quadratic equation and hence find the nature of its roots |
| If the points A(2, 3), B(-5, 6), C(6, 7) and D(p, 4) are the vertices |
| Find the coordinates of the point which divides the join of A(-1, 7) and B(4, -3) in the ratio 2 : 3 |
| If , then find the value of |
| Assertion (A): If one root of the quadratic equation |
| Assertion (A): A tangent to a circle is perpendicular to the radius through the point of contact |
| The length of the tangent from an external point A to a circle |
| How many tangents can be drawn to a circle from a point on it |
| Which of the following is not a quadratic equation |
| A quadratic equation whose one root is 2 and the sum of whose roots is zero, is |
| From a well-shuffled deck of 52 playing cards |
| The mode of the numbers 2, 3, 3, 4, 5, 4, 4, 5, 3, 4, 2, 6, 7 is |
| The angle of elevation of the top of a 30 m high tower |
| The length of the arc of a circle of radius 14 cm which subtends an angle of |
| The value of is |
| If and |
| The pair of linear equations x + 2y + 5 = 0 and −3x − 6y + 1 = 0 has |
| Which of the following cannot be the probability of an event? |
| If , then p (−2) is |
| The number is |
| If the radius of a semi-circular protractor is 7 cm, then its perimeter is |
| (HCF × LCM) for the numbers 70 and 40 is |
| A quadratic polynomial the sum and product of whose zeroes are -3 and 2 respectively, is |