Students and Teachers Forum

Table for calculation of MD.   CI f cf x Median D = x -median | D |  f | D .....

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Here, first, we need to arrange denominator  as follows, :-ab-ca-b-bc-ab-c- ca-bc-a Then take LCM, =  -a(c - a) - b(a - b) - c(b - c)a-bb-c)(c - a = -ac + a2 - ab + b2 - bc + c2a-bb-c)( c - a  Simplify .....

We have, cos A + cos (7A) + cos(3A) + cos(5A) = 0  or, cos(4A - 3A) + cos(4A + 3A) + cos(4A - A) + cos(4A + A) = 0  or, 2cos(4A)cos(3A) + 2 cos(4A) cos A = 0  or, cos(4A)cos(3A) + cos(4A) cos A = 0  or, cos(4A) [ cos(3A + cos .....

Bhandarkhal massacre takes place in 12th Kartik, 1903B.S. Bhandarkhal massacre occurred in Basantapur palace. Queen Rajya Laxmi was banished in 23rd November 1846 A.D to the Kashi. Rajya Laxmi was responsible for Bhandarkhal .....

१. हातहतियार त्याग्ने काम २. कुनै पद खाली रहेको ठाउँ ३. आन्तरिक कुरा सबै थाहा दिनु ४. हालसालैको, .....

एकैचोटि पुरै किताबकै प्रश्न राख्नुभयो भने उत्तर दिन कठिन हुन्छ । थोरै थोरै गरेर प्रश्न .....

१. हुनेलाई आफैँ आइरहन्छ । २. कमसल सामग्रीले हानि गर्छ .....

१. काम गर्न बाँकी राख्दा आफैँले गर्नुपर्छ तर खाना बाँकी राख्दा अरुले नै खाइदिन्छ । रामले खाना .....

Mechanical Advantage is defined as the ratio of the load moved by a simple machine to the effort applied on it. Velocity ratio is defined as the ratio of the distance moved by effort to the distance moved by load. Efficiency is defined as the .....

It doesn’t matter whether the weaker person is in the front or in the back. But if you’re asking how two people (with a big difference between their strenghts) should carry a ladder with equal stain on them both, the stonger one should .....

The mechanical advantage(M.A) of a real machine is always less than its velocity ratio(V.R) because mechanical advantage decreases due to the friction and weight of moving parts of the machine whereas the velocity ratio remains constant. If .....

When plants grow in an area, the roots of plants dig deep in to the soil and create space between soil particles. When it rains in highlands, water that flows downhill gets drained into the space created by the root system of plants. Due to this, .....

काग र परेवा (कथा)
देवेन्द्रप्रसाद उप्रेती
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Dark sides of technology Increased Loneliness Social Isolation is on the increase, people are spending more time playing video games, learning how to use new modern technologies, using social networks and they neglect their real life. Technology .....

The process of removing or cutting plants and clearing the large number of trees for personal or developmental proposes is called defforestation. It occurs due to the growing population and urbanization. Floods, landslides, soil erosion, air .....

The mean proportion between 4 and 9 is,  = √(4 ⨉ 9) = .....

If agriculture is developed it will contribute for economic growth and development in our country. The development of agriculture would open up the doors for employment opportunities for youths. It would open up the door for the development of .....

पानी परेपछि पृथ्वी नरम हुन्छ । यसपछि पृथ्वी कलिली देखिन्छिन् । नरम बनेको .....

पानी परेपछि पृथ्वी नरम हुन्छ । यसपछि पृथ्वी कलिली देखिन्छिन् । नरम बनेको .....

Question.1 Does work done depend upon the velocity of the body.  Question.2 State the law of conservation of energy. Question.3 In a tug-of-war one team gives way to the other. What work is being done and by 4 What will cause greater change .....

- Due to illiteracy, people are involved in drug addiction. - Due to the negligence by the parents, children may involve in drug addiction. - In the name of celebrating festivals, parties, etc. people form the habit of regularly taking the .....

Here,  4/12     = 2/ 6     = 1/3, which is in simplest .....

a. You must take the tablets twice a day. b. They broke the kitchen window .....

(a + b)3 - (a - b)3 [(a + b) - (a - b)] [(a + b)2 + (a + b)(a - b) + (a - b)2]    .....

Rainy season falls after the summer season and offers the much-needed respite from the scorching summer heat. It is welcomed with joy and happiness. The cool rain showers are a perfect way to rejuvenate after bearing the sun for almost 3 months. At .....

There were four castes and 36 sub-castes based on the occupations of the people. The society was illiterate and it was quite traditional. Many evil customs and practices existed during this period. Child marriage, polygamy, sati system, .....

Work done is defined as the product of force and distance. Power is the rate of doing work. i.e. P = W/t  So, if two person do the same amount of work, their power are different because here, power depends on the time taken by them to do the .....

A candle is an energy converter because when, it is burnt it convert chemical energy contained in wax, into light and heat .....

Here is an example for you. We are given with a list of following numbers to arrange in ascending and descending order. The numbers are 7, 4, 9, 5, 2, 8 and 3. Now to arrange the given number in ascending order we have to write the smallest .....

पहिलो भेटमा हात मिलाउँछन् र नाम लिएर आफ्नो परिचय दिन्छन् । परिवारका सदस्य र .....

Here,  5x-1 = x+11 or, 5x - x = 11 + 1 or, 4x = 12 or, x = 12 /4  x = .....

Here,  2x²+5x+3 = 2x²+3x + 2x +3 = x(2x + 3) + (2x + 3) = (x + 1) (2x + .....

The element in order of their increasing reactivity are:  Potassium Barium Calcium  Sodium Magnesium Aluminium Zinc Iron Nickel Tin Lead Copper Mercury Silver Gold Platinum. Now arrange  Silver, Gold, .....

Here,  let D (h,k) be the centre and r be the radius of a circle so that the equation of the circle is , (x - h)2+ (y - k)2 = r2..............(i) Since, the circle passes through A(5,7), B(6,6) and C(2,2) So, (5 - h)2 + (7 - .....

Grandfather - Abraham Einstein Father - Hermann Einstein   Herman .....

Some applications in which we reduce the pressure by increasing the surface area over which the force is exerted are: A porter carries luggage on his head after keeping a piece of cloth. Cutting vegetables with blunt knife .....

मेरो घरमुनी ओरालोमा श्यामको घर छ .....

An electronic device which is capable of receiving information (data) in a particular form and of performing a sequence of operations in accordance with a predetermined but variable set of procedural instructions (program) to produce a result in the .....

4o C is the temperature in which water is more dense. Going up or down in temperature will cause the density to decrease. Since the mass is constant the volume must increase, thus overflowing if the beaker was already filled to the .....

Illiteracy refers to an inability to read and write. When people don't know how to read and write, they do not have access to education. When they are deprived of education, they won't know the ideas to overcome different social .....

Have a look at the Hindu Gods and Goddesses shown in the picture .....

The quality of the physical infrastructure is heavily dependent upon the social infrastructures, the high the quality of the social infrastructure, the higher the physical structure. The physical infrastructure includes the physical wealth while .....

The general equation of a circle is (x - h)2 + (y - k)2 = r2, where (h, k) are the coordinates of the centre and r is the radius of the circle. Circle passes through three points. The coordinates of the points give the value of x and .....

We know that society is a group of people living together. The people in society work for mutual growth and development. They make efforts to maintain harmony in their society. To maintain harmony or brotherhood, they develop some code of .....

You might know the shape of your book, pen, carton, football etc. They have a definite shape. But some objects have irregular shape such as a piece of stone. This type of object which has irregular shape is called undefined .....

The term Haliya comes from the word ‘Halo’ and it refers to someone who plough landlord’s field. Haliya pratha is an exploitative system of agrarian bonded labour. Haliyas are those who served as agricultural bonded .....

We know,  A molecular formula is   a chemical formula that gives the total number of atoms of each element in each molecule of a substance. So, we take no.of atom only not the .....