Mathematics - Questions

CBSE 10th standard Questions

find the value(s) of k for which the pair of linear equation kx - 3y = k - 2 and 12x + ky = k has no solution.
(class: 10th std )    mathematics

The sum of 4th and 8th terms of an A.P. is 24 and sum of 6th and 10th terms. is 44. Find A.P.
(class: 10th std )    mathematics

Find the point on y-axis which is equidistant from the points (5, -2) and (-3, 2).
(class: 10th std )    mathematics

From the top of a building 60 m high, the angles of depression of the top and the bottom of a tower are observed to be 30° and 60°. Find the height of the tower.
(class: 10th std )    mathematics

A solid iron rectangular block of dimensions 4.4 m, 2.6 m and 1 m is cast into a hollow cylindrical pipe of internal radius 30 cm and thickness 5 cm. Find the length of the pipe.
(class: 10th std )    mathematics

A two digit number is such that the product of its digits is 18. When 63 is subtracted from the number, the digits interchange their places. Find the number.
(class: 10th std )    mathematics

Prove that three times the square of any side of an equilateral-triangle is equal to four times the square of the altitude.
(class: 10th std )    mathematics

A point P is 13 cm from the centre of the circle. The length of the tangent drawn from P to the circle is 12 cm. Find the radius of the circle.
(class: 10th std )    mathematics

Find the area of the segment of a circle, given that the angle of the sector is 120° and the radius of the circle is 21cm.
(class: 10th std )    mathematics

Divide a line segment of length 8 cm internally in the ratio 3 : 4.
(class: 10th std )    mathematics

Show that four points (0, −1), (8, 3) (6, 7) and (−2, 3), taken in order, are the vertices of rectangle Also, find its area.
(class: 10th std )    mathematics

If the point C (−1, 2) divides internally the line segment joining A (2, 5) and B in ratio 3:4, find the coordinates of B.
(class: 10th std )    mathematics

Find the sum of all natural numbers between 250 and 1000 which are exactly divisible by 3.
(class: 10th std )    mathematics

Find the sum of first 20 terms of an A.P., in which 3rd term is 7 and 7th term is two more than thrice of its 3trd term.
(class: 10th std )    mathematics

Find the value of x, if the distance between the points (x, −1) and (3, 2) is 5.
(class: 10th std )    mathematics

It is known that a box of 600 electric bulbs contains 12 defective bulbs. One bulb is taken out at random from this box. What is the probability that it is a non-defective bulb?
(class: 10th std )    mathematics

An unbiased die is thrown. What is the probability of getting a multiple of 3?
(class: 10th std )    mathematics

Which type of triangles are similar?
(class: 10th std )    mathematics

Three cubes whose edges measure 3 cm, 4 cm and 5 cm respectively to form a single cube. Find its edge.
(class: 10th std )    mathematics

Find the mode of the following data:120, 110, 130, 110, 120, 140, 130, 120, 140, 120
(class: 10th std )    mathematics

Show that x = 2, y = 1 is a solution of the system of simultaneous linear equations 3x−2y=4, 2x+y=5
(class: 10th std )    mathematics

In a △ABC, right angled at A, if AB = 12, AC = 5 and BC = 13, find sinB.
(class: 10th std )    mathematics

What is the common point of a tangent and the circle called?
(class: 10th std )    mathematics

Show that any positive integer is of the form 3q, or, 3q + 1 or, 3q + 2 for some integer q.
(class: 10th std )    mathematics

ABC is a right-angled triangle right angled at A. A circle is inscribed in it. The lengths of the two sides containing the right angle are 6 cm and 8 cm. Find the radius of the circle.
(class: 10th std )    mathematics

Water is flowing at the rate of 5 km / hr through a pipe of diameter 14 cm into a rectangular tank which is 50 m long and 44 m wide. Determine the time in which the level of the water in the tank will rise by 7 cm.
(class: 10th std )    mathematics

Determine the height of a mountain if the elevation of its top at an unknown distance from the base is 30° and at a distance 10 km further off from the mountain, along the same line, the angle of elevation is 15°
(class: 10th std )    mathematics

A plane left 30 minutes later then the scheduled time and in order to reach its destination 1500 km away in time it has to increase its speed by 250 km / hr from its usual speed. Find its usual speed.
(class: 10th std )    mathematics

The perimeter of a sector of a circle of radius 5.4 cm is 17.4 cm. Find the area of the sector.
(class: 10th std )    mathematics

Take a point O on the plane of the paper. With O as centre draw a circle of radius 3 cm. Take a point P on this circle and draw a tangent at P
(class: 10th std )    mathematics

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