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Why eduladder wont show ads to logged in users?001
The mean of 10, 15, x, 5, 15 is 15. What is the value of x? CBSE class 9 Mathematics101
The width of each of five continuous classes in a frequency distribution is 5 and the lower class limit of the lowest class is 10. What is the upper class limit of the highest class? CBSE class 9 Mathematics100
What is median of the following numbers: 4, 3, 4, 5, 12, 7, 7, 6, 7? CBSE class 9 Mathematics001
What is the mode of the observations 11, 8, 10, 8, 15, 6, 7, 8, 12, 7 and 9? CBSE class 9 Mathematics101
What is the median of the data 10, 16, 7, 9, 8, 4 and 12? CBSE class 9 Mathematics101
The mean of 100 observations is 50. If one of the observation which was 50 is replaced by 150 then what will be the resulting mean? CBSE class 9 Mathematics 001
What is the mean of first 10 natural numbers? CBSE class 9 Mathematics001
Show that if the diagonals of a quadrilateral are equal and bisect each other at right angles, then it is a square. CBSE class 9 Mathematics001
In a parallelogram ABCD find the measure of all the angles if one angle measures 68° CBSE class 9 Mathematics 000
In a ΔABC, DE is parallel to BC and D is the mid-point of side AB. Find AE and BC if DE = 6 cm and EC = 5 cm. CBSE class 9 Mathematics 000
In a parallelogram ABCD find the measure of all the angles if one its angles is 15° less than twice the smallest angle. CBSE class 9 Mathematics000
The lengths of diagonals of a rhombus are 24 cm and 18 cm respectively. Find the length of each side of the rhombus. CBSE class 9 Mathematics000
PQRS is a parallelogram. PS is produced to meet M so that SM = SR and MR is produced to meet PQ produced at N. Prove that QN= QR. CBSE class 9 Mathematics000
What is the minimum number of lines required to make a closed figure? CBSE class 9 Mathematics100
Find the height of a trapezium in which parallel sides are 25 cm 77 cm and non-parallel sides and 26 cm and 60 cm. Given the area of the trapezium as 1644 cm2. CBSE class 9 Mathematics100
What is the area of an equilateral triangle whose side is 2 cm? CBSE class 9 Mathematics100
The sides of a triangular plot are in the ratio of 6 : 7 : 8 and its perimeter is 420 m. Find its area. CBSE Class 9 Mathematics100
Find the area of an isoscles triangle with two equal sides as 5 cm each and the third side as 8 cm. CBSE class 9 Mathematics100
Find the area of an equilateral triangle with side 10 cm. CBSE class 9 Mathematics100
Find the area of a right-angled triangle whose base is 12 cm and height is 5 cm. CBSE class 9 Mathematics100
The diameter of a roller is 84 cm and its length is 120 cm. It takes 500 complete revolutions to move once over to level a playground. Find the area of the playground in m2. CBSE class 9 Mathematics 100
A small indoor greenhouse (herbarium) is made entirely of glass panes (including base) held together with tape. It is 30 cm long, 25 cm wide and 25 cm high.What is the area of the glass? CBSE class 9 Mathematics000
A cubical box has each edge 10 cm and another cuboidal box is 12.5 cm long, 10 cm wide and 8 cm high. CBSE class 9 Mathematics000
A plastic box 1.5 m long, 1.25 m wide and 65 cm deep is to be made. It the top. Ignoring the thickness of the plastic sheet, determine: The area of the sheet required .for snaking the box. CBSE class 9 Mathematics 001
What is the total surface area of a cone having radius and height 21? CBSE Class 9 Mathematics 000
What is the total surface area of a cone having radius and height 21? CBSE Class 9 Mathematics 000
If the radius of cylinder is halved and height is doubled, then what will be the curved surface area? CBSE class 9 Mathematics 000
If a right circular cone has radius 4 cm and slant height 5 cm then what is its volume? CBSE class 9 mathematics000
The radius of a hemisphere is r. What is its volume . CBSE class 9 Mathematics?001
If the radius of a sphere is doubled then what is the ratio of their volumes? CBSE class 9 Mathematics000
If the heights of two cylinders are in the ratio of 4 : 3 and their radii are in the ratio of 3 : 4 then what is the ratio of their volumes? CBSE class 9 mathematics 000
Expand the term (a+b)3 .CBSE class 9 Mathematics001
In a parallelogram ABCD, AE is perpendicular to DC and CF is perpendicular to AD. If AB = 10 cm, AE = 6 cm and CF = 8 cm, then find AD. CBSE class 9 Mathematics 000
If two sides of one triangle are equal to two sides of another triangle and the contained angles are supplementary, show that the two sides are equal in area. CBSE class 9 Mathematics000
A rectangle is formed by joining the mid-points of the sides of a rhombus. Show that the area of rectangle is half the area of rhombus. CBSE class 9 Mathematics000
AB and CD are parallel sides of trapezium ABCD. Diagonals AC and BD intersect at O. prove that ar(ΔAOD) = ar(ΔBOC). CBSE class 9 Mathematics000
There are 5 prizes on 1000 tickets of a lottery of company. Probability of winning prize is : CBSE class 9 Mathematics 001
Probability of drawing an ace from a deck of 52 cards is : CBSE class 9 Mathematics 001
There are 5 red and 3 black balls in a bag. Probability of drawing a black ball is : CBSE class 9 Mathematics 001
If the probability of winning a game is 0.3, then probability of losing it is : CBSE class 9 mathematics001
Probability of a leap year having 53 Sundays is : CBSE class 9 Mathematics001
A dice is thrown once. Probability of getting a number 3 or 4 is : CBSE class 9 Mathematics001
A coin is thrown once. Find the probability of getting a head. CBSE class 9 mathematics001
A coin is tossed 200 times and is found tha ta tail comes up for 120 times. Find the probability of getting a tail. CBSE class 0 Mathematics000
From a group of 2 boys and 3 girls, we select a child. Find the probability of this child being a girl. CBSE class 9 Mathematics 000
A die is thrown once. Find the probability of getting a prime number. CBSE class 9 Mathematics 000
What do you mean by the Vertically opposite angles ? CBSE class 9 Mathematics 001
Find the radius of a sphere whose surface area is 154cm2. CBSE class 9 Mathematics 001
Curved surface area of a right circular cylinder is 4.4m2. If the radius of the base of the cylinder is 0.7m, find its height. CBSE class 9 Mathematics000
The curved surface area of a right circular cylinder of height 14 cm is 88cm2. Find the diameter of the base of the cylinder. CBSE class 9 Mathematics001
The diameter of a metallic ball is 4.2cm. What is the mass of the ball, if the density of the metal is 8.9 g per cm3? CBSE class 9 mathematics001
The height and the slant height of a cone are 21cm and 28 cm respectively. Find the volume of the cone. CBSE class 9 Mathematics 001
The capacity of a cubical tank is 50000 liters of water. Find the breadth of the tank, if its length and depth are respectively 2.3m and 10m. CBSE class 9 Mathematics001
The cuboidal tank has dimensions as 12m,3m,5m. find the amount of water it can hold? CBSE class 9 mathematics001
Explain the AAA congurency rule? CBSE class 9 Mathematics000
Explain the ASA congurency rule? CBSE class 9 Mathematics001
If 2x+y=6 and x+2y=7 are the given set of equations. find x and y? CBSE class 9 Mathematics 000
What do you mean by the CBSE class 9 Mathematics 000
What are alternate interior angles? CBSE class 9 mathematics 001
What do you mean by complementry angles? CBSE class 9 Mathematics 001
What isthe sum of the angle of the triangle ? CBSE class 9 mathematics 001
If the dimensions of the cube is 4m. find the volume of the cuboid? CBSE class 9 Mathematics 001
If the circumference of the circular field is 121 cm .Tehn find the diameter of the field. CBSE class 9 Mathematics001
What are isoceles triangles? CBSE class 9 Mathematics 001
What are scalar triangles? CBSE class 9 Mathematics 001
What are equilateral triangles? CBSE class 9 Mathematics 001
What do mean by supplementary angles? CBSE class 9 Mathematics 001
What is SSS congurency rule? CBSE class 9 Mathematics 001
What do you mean by the median of the triangle ? CBSE class 9 mathematics001
Find the radius of the circle if the area is 49? CBSE class 9 Mathematics001
If 2x-8y=5 and x-2y=7 are the given set of equations. find x and y? CBSE class 9 mathematics000
If the radius of the circular field is 7 cm .Find the circumference and the area of the circle ? CBSE class 9 mathematics001
What do you mean by vertically opposite angles? CBSE class 9 Mathematics001
If the dimensions of the cuboid are 3m,50cm,4m. find the volume of the cuboid? CBSE class 9 Mathematics 001
If x-9y=1 and 2x+3y=5 are the set of linear equations .Find the value of x and y? CBSE class 9 Mathematics000
What is the slope of the line perpendicular to Y axis ? CBSE class 9 mathematics001
Explain the SAS congurency rule? CBSE class 9 Mathematics001
If the dimensions of the cuboid are 3m,5m,4m. find the volume of the cuboid? CBSE class 9 Mathematics 001
What is the formula to calculate the surface area of the cubiod ?CBSE class9 Mathematics001
Find the area of the rectangular park whose dimensions are 150m,120m . CBSE Class 9 Mathematics001
What is the smallest prime number ? CBSE class9 mathematics000
Find the slope of the line 2x -7y=9 ? CBSE class 9 mathematics001
What do you mean by the degree of the polynomial ? CBSE class 9 Mathematics 001
If 2x+3y=5 and x-2y=7 are the given set of equations. find x and y? CBSE class 9 mathematics001
What is the slope of the line parallel to X axis ? CBSE Class 9 Mathematics 001
What is the degree of the polynomial x+5 ? CBSE Class 9 Mathematics001
Does the transfer of energy take place when you push a huge rock with all your might and fail to move it? Where is the energy you spend going? - Physics Cbse class 11 000
What are the various energy transformations that occur when you are riding a bicycle? - Physics Cbse class 11 000
The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why? - Physics Cbse class 11 000
A mass of 10 kg is at a point A on a table. It is moved to a point B. If the line joining A and B is horizontal, what is the work done on the object by the gravitational force? Explain your answer. - Physics Cbse class 11 000
Certain force acting on a 20 kg mass changes its velocity from 5 m/s to 2 m/ s. Calculate the work done by the force. - Physics Cbse class 11 000
A battery lights a bulb. Describe the energy changes involved in the process. - Physics Cbse class 11 000
An object thrown at a certain angle to the ground moves in a curved path and falls back to the ground. The initial and the final points of the path of the object lie on the same horizontal line. What is the work done by the force of gravity on the object? - Physics Cbse class 11 000
Define average power. - Physics Cbse class 11 000
A lamp consumes 1000 J of electrical energy in 10 s. What is its power? - Physics Cbse class 11 000
Define 1 watt of power. - Physics Cbse class 11 000
Why did Margie hate school? Why did she think the old kind of school must have been fun?English-CBSE-Class-9 NCERT Solutions100
if the points on the line are (7,-8)and (3,3). find the equation of the line. CBSE Mathematics Class 9 . 001
What is power? - Physics Cbse class 11 000
How does he describe the old kind of teachers?English-CBSE-Class-9 NCERT Solutions100
How does Tommy describe the old kind of school?English-CBSE-Class-9 NCERT Solutions100
The kinetic energy of an object of mass, m moving with a velocity of 5 ms-1 is 25 J. What will be its kinetic energy when its velocity is doubled? What will be its kinetic energy when its velocity is increased three times? - Physics Cbse class 11 000
Did Margie have regular days and hours for school? If so, why?English-CBSE-Class-9 NCERT Solutions100
Why has India a rich heritage of flora and fauna? - CBSE Geography Class 9 NCERT Solutions000
Why was Margie doing badly in geography? What did the County Inspector do to help her?English-CBSE-Class-9 NCERT Solutions100
Quite a few species of plants and animals are endangered in India. Why? - CBSE Geography Class 9 NCERT Solutions000
Write an expression for the kinetic energy of an object. - Physics Cbse class 11 000
Name different types of vegetation found in India and describe the vegetation of high altitudes. - CBSE Geography Class 9 NCERT Solutions000
What is the kinetic energy of an object? - Physics Cbse class 11 000
Distinguish between the following: (- CBSE Geography Class 9 NCERT Solutions)000
A pair of bullocks exerts a force of 140 N on a plough. The field being ploughed is 15 m long. How much work is done in ploughing the length of the field? - Physics Cbse class 11 000
Give the characteristics and effects of the monsoon rainfall in India. - CBSE Geography Class 9 NCERT Solutions000
Give an account of weather conditions and characteristics of the cold season. - CBSE Geography Class 9 NCERT Solutions000
Define 1 J of work. -Physics Cbse class 11 000
Why did Margie’s mother send for the County Inspector?English-CBSE-Class-9 NCERT Solutions100
Discuss the mechanisms of monsoons. - CBSE Geography Class 9 NCERT Solutions001
Write an expression for the work done when a force is acting on an object in the direction of its displacement. - Physics Cbse class 11 000
Describe the regional variations in the climatic conditions of India with help of suitable examples. - CBSE Geography Class 9 NCERT Solutions001
What kind of teachers did Margie and Tommy have?English-CBSE-Class-9 NCERT Solutions100
When do we say that work is done? - Physics Cbse class 11 000
Give reasons as to why: Parts of Rajasthan, Gujarat and the leeward side of the Western Ghats are drought-prone. - CBSE Geography Class 9 NCERT Solutions001
Give reasons as to why: The delta region of the eastern coast is frequently struck by cyclones. - CBSE Geography Class 9 NCERT Solutions001
The volume of a 500 g sealed packet is 350 cm3. Will the packet float or sink in water if the density of water is 1 g cm-3? What will be the mass of the water displaced by this packet? - Physics Cbse class 11 000
Give reasons as to why: The Tamilnadu coast receives winter rainfall. - CBSE Geography Class 9 NCERT Solutions001
What are rational and Irrational Numbers? Class 9 CBSE mathematics001
The volume of 50 g of a substance is 20 cm3. If the density of water is 1 g cm-3, will the substance float or sink? - Physics Cbse class 11 000
Give reasons as to why: The bulk of rainfall in India is concentrated over a few months. - CBSE Geography Class 9 NCERT Solutions001
Why does a block of plastic released under water come up to the surface of water? - Physics Cbse class 11 000
In what direction does the buoyant force on an object immersed in a liquid act? - Physics Cbse class 11 000
What do you mean by prime numbers? CBSE Mathematics Class 9201
Give reasons as to why: Seasonal reversal of wind direction takes place over the Indian subcontinent? - CBSE Geography Class 9 NCERT Solutions001
Find (a) the velocity with which it was thrown up, (b) the maximum height it reaches, and (c) its position after 4 s. - Physics Cbse class 11 000
Why does the rainfall decrease from the east to the west in Northern India? - CBSE Geography Class 9 NCERT Solutions001
A stone is allowed to fall from the top of a tower 100 m high and at the same time another stone is projected vertically upwards from the ground with a velocity of 25 m/s. Calculate when and where the two stones will meet.- Physics Cbse class 11 000
Answer the following question briefly: Why is the monsoon considered a unifying bond? - CBSE Geography Class 9 NCERT Solutions001
Answer the following question briefly: Define monsoons. What do you understand by “break” in monsoon? - CBSE Geography Class 9 NCERT Solutions001
Calculate the force of gravitation between the Earth and the Sun, given that the mass of the Earth = 6 × 1024 kg and of the Sun = 2 × 1030 kg. The average distance between the two is 1.5 × 1011 m. - Physics Cbse class 11 000
Answer the following question briefly: What are jet streams and how do they affect the climate of India? - CBSE Geography Class 9 NCERT Solutions001
Answer the following question briefly: Which winds account for rainfall along the Malabar Coast? - CBSE Geography Class 9 NCERT Solutions001
A stone is released from the top of a tower of height 19.6 m. Calculate its final velocity just before touching the ground. - Physics Cbse class 11 000
Answer the following question briefly: Which part of India does experience the highest diurnal range of temperature and why? - CBSE Geography Class 9 NCERT Solutions001
Calculate (i) the maximum height to which it rises, (ii) the total time it takes to return to the surface of the Earth. - Physics Cbse class 11 000
Gravitational force on the surface of the Moon is only 1/6 as strong as gravitational force on the Earth. What is the weight in newtons of a 10 kg object on the Moon and on the Earth? - Physics Cbse class 11 000
Answer the following question briefly: Why does India have a monsoon type of climate? - CBSE Geography Class 9 NCERT Solutions001
Calculate (i) the maximum height to which it rises, (ii) the total time it takes to return to the surface of the Earth. - Physics Cbse class 11 000
Explain the ending of the song. English-CBSE-Class-9 NCERT Solutions100
Why does a sheet of paper fall slower than one that is crumpled into a ball? - Physics Cbse class 11 000
Answer the following question briefly: What are the controls affecting the climate of India? - CBSE Geography Class 9 NCERT Solutions001
Amit buys few grams of gold at the poles as per the instruction of one of his friends. He hands over the same when he meets him at the equator. Will the friend agree with the weight of gold bought? If not, why? - Physics Cbse class 11 000
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