Students and Teachers Forum

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Here given, n(U) = 100% n(M) = 60% n(S) = 55% n(E) = 65% n(M∩S) = 25% n(S∩E) = 30% n(E∩M) = 35% n (M∩S∩E) = ? Now using formula, n(U) = n(M) + n(S) + n(E) - n(M∩S) - n(S∩E) - n(E∩M) .....

Here given, n(L) = 45 n(J) = 40  n(C) = 60 n(J∩L)= 10 n(L∩C) = 25 n(J∩C) = 20  n(J∩L∩C ) = 5 n (U) = ? Now using formula, n(U) = n(L) + n(J) + n(C) - n(J∩L) - n(L∩C) - n(J∩C) .....

Here given, n(T) = 60 n(C) = 45 n(M) = 30 n(C∩M)= 15 n(C∩T) = 25 n(T∩M) = 20  n(T∩C∩M ) = 10 n (U) = ? Now using formula, n(U) = n(T) + n(C) + n(M) - n(C∩M) - n(C∩T) - n(T∩M) .....

Here given, n (U) =120 n(G) = 45 n(P) = 40  n(A) = 60 n(G∩P)= 10 n(G∩A) = 25 n(P∩A) = 20  n(G∩P∩A ) = 5 n(G∪P∪A )' = ? Now using formula, n(G∪P∪A ) = n(G) + n(P) + n(A) .....

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Whereas, the places farther from the equator or with higher latitude experiences cold climate. It is because the sun rays fall straight into the equatorial region but slanting towards the polar region. The straight sun rays cause more heat than .....

Depending on the time of year, day length will either increase or decrease as location progress north or south. At 0o latitude(the equator), day length will be approximately 12 hours. Areas on the equator have a constant 12 hours of .....

Those animals, which depends on plants for their food are called herbivorous animals.  For example: cow, horse, buffalo, goat , .....

Here,  LHS = sec(π/4+a/2). sec(π/4-a/2)          = 1 / cos(π/4+a/2) . 1/ cos(π/4-a/2)         = 1/ [ cos45o cosa/2 - sin45o sina/2]  ⨯ 1/ [ .....

The person in the picture above is the first Nepali women to reach at the top of the Mount Everest. She was born into a mountaineering family and was involved in climbing from her teens. She has successfully climbed the Mt. Everest on 10th Baisakh .....

The Terai region of Nepal is situated at the southernmost part of the country. It occupies 17% of the total land of the country. The temperature of this region is hot. The land in this region is fertile which is suitable for agricultural .....

The full form of UTP is Unsheilded  Twisted Pair. Full form of STP is Sheilded Twisted .....

Practise reading the given dialogue with your .....

जैविक र रासायनिक खेतीमा फरक विषादि लगायत हानिकारक तत्त्व प्रयोग नगरी  गरिने खेती जैविक हो .....

Let x be the number of students studying both, which means it is also the number of students studying neither.   One quarter of those who study Spanish also study French. If the Spanish students studying French are x, then all Spanish .....

Similarly, altitude is another affecting factor that causes a change in the climate. As the altitude increases, the density of the air becomes thinner and thinner as they contain fewer amounts of dust particles and water vapour. Therefore, .....

Acid, Base and salt is not that hard chapter.  But you need to practise. Every thing is important in this chapter. So study hard, and feel free to ask us any question regarding to this .....

Vegetative propagation, or vegetative plant propagation, refers to the process of plant reproduction whereby a fragment of a parent plant (a cutting) is taken in order to produce more plants (clones). These fragments, known as cuttings, are able .....

- Global conference on environmental protection. - Making international announcement on sustainable use of natural resources. - Global collaboration for fighting against the adverse effects of climate change. - Reducing the experimentation of .....

The people also rear domestic animals and grow fruits and vegetables. Many industries are set up in this region. Due to the availability of raw materials, there are cement, bricks and tiles, textile, biscuit, leather and shoes, beer and wine and .....

Let sum of money be P Then, CA= 2P We know,  CA = P( 1 + R/100)T or, 2P = P(1 + R/100)10 or,2 = (1 + R/100)10 or, 10√2 = 1 + R/100 or, 1.07 = 1 + R/100 Solve and get R = .....

Here, No.of possible outcomes = n(S) = 52 No.of kings = n(K) = 4 Now, a card is drawn after replacement. Thus,  Probability of getting both king = P(K).P(K)                       .....

Here, Cost of the article with VAT = Rs. 7475 Cost of the article without VAT = Rs. 6500 Then, VAT amount = Rs. 7475 - 6500 = Rs. 975 Let the VAT rate be x. Then, x% of 6500 = 975 x ∗ 65 = 975 x = 15 Hence, the VAT rate is .....

Once there was a small boy named Shankar. He belonged to a poor family.  One day, he was crossing through the forest carrying some woods. He saw an old man who was very hungry.  Shankar wanted to give him some food, but he did .....

The Hilly region lies at the middle part of the country. It covers 68% of the total land of the country. The Terai region is situated at the southernmost part of the country. It occupies 17% of the total land of the .....

Geographically, it has been divided into three different regions. They are Mountain, Hilly and Terai region. Mountain region lies at the northernmost part of the country. It occupies 15% of the total land of the country. The climate is very .....

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29th August 2018 Thapathali, Kathmandu Latikoili, Surkhet Nepal Dear Brother Prabhu, I received your letter yesterday morning. In the letter, you have mentioned about your visit to Pokhara in the summer vacation. .....

The efficiency of any machine measures the degree to which friction and other factors reduce the actual work output of the machine from its theoretical maximum. A frictionless machine would have an efficiency of .....

Work is said to done only when the moves certain distance in the direction of applied force. i.e workdone = force x distance covered  But in this case, a man is standing carrying 1.5 kg load on his head. Since he is at rest, no work is said .....

b) a = .....

Here,  Length of wire = 7/8m  Length of one piece = 1/4m. Now,  Length of another piece = 7/8 - 1/4  Take LCM of 8 & 4, you will get it 8. Thus,  = ( 7 - 2)/8 = 5/8m, which is length of another .....

Alternative method: If you have options are given, you can take a answer and multiply them, from one you will get the question. That is the correct .....

Here,  2P - 3R = 4Q Using value of P & Q, we get  2 4101 - 3R = 42-1-31 or, - 3R = 8-4-124 - 8201 or, -3R = 0-6-123 or, R = .....

Here,  Length of wire = 7/8m  Length of one piece = 1/4m. Now,  Length of another piece = 7/8 - 1/4  Take LCM of 8 & 4, you will get it 8. Thus,  = ( 7 - 2)/8 = 5/8m, which is length of another .....

There once lived a crow. One day he was very hungry. He had not been able to get any food the previous day. “If I do not get anything to eat I will starve to death," he thought.  As the crow was searching for food, his eyes fell on .....

Here,  A + 2X = 5B Using value of A & B, we get   69-22 + 2X = 52302 or, 2X = 1015010 - 69-22 or, 2X = 4628 or, X = .....

Here,  Price with VAT = 3616  or, SP + VAT% of SP = 3616 or, 113SP / 100 = 3616 Find SP. Discount Amount = MP - SP Find it, Finally, Discount % = Discount Amonut / MP ⨯ .....

मान्छे जति सम्पत्ति भए पनि कहिल्यै सन्तुष्ट बन्न सक्दैन । जब ऊ सन्तुष्ट हुँदैन तब .....

An embryo is an early stage of development for an unborn baby. During this period of growth, a tiny fertilized egg divides and develops to a point where it starts to resemble a .....

Frist change the mixed fraction into pure fraction. = (7⨯ 9 + 4) / 7 + ( 7⨯ 8 + 6)/7 = 67/7 + 62/7 Now take 7 as the LCM = ( 67 + 62) / 7 = 129/7 Can you change it into mixed .....

About 5% people of world's population live in this region. They roam from one place to other with their camels in search of food and water. The people have permanent settlement only in the areas where water is available. People except in .....

Here,  tn of first sequence = 9 + (n - 1)(-2) = 11 - 2n tn of the second sequence = 15 + ( n - 1)(-3) = 18 - 3n According to the question, 11 - 2n = 18 - 3n Solve & find .....

Here, we have to add 3/2 + 4/2 Taking LCM, we get LCM = 2 So, 3/2 + 4/2  = ( 3 + 4) / 2 = 7/2. Which is your .....

Here,  a = 9 & b = 33. Let d be the common difference & n be the no.of means. Then, m3 = a + 3d = 21 or, 9 + 3d = 21 or, d = 4 Again, We know, d = (b - a)/ (n + 1) or, 4 n + 4 = 33 - 9 or, n = .....

Here, No.of mean = n  a = 3 & b = 17. m1 / mn = 1/3 or, (a + d) / (a +nd) = 1/3 or,  9 + 3 d = 3 + nd or, d = 6/(n - 3)..............(i) Again, we know d = ( b - a)/(n + 1) or, 6/(n -3) = 14/(n + 1) or, 3n + 3 = 7n .....

Here,  A = 0o, B = 30o. Now,  LHS = sin(B - A)          = sin( 45 - 0)          = sin45o          = 1/√2 RHS = sinBcosA - CosB sinA     .....

Here, in triangle PQR, P(5, 8), Q(9, -2) and R(3, -4) A, B and C are the mid-points of PQ, QR and RP respectively. Find the co-ordinates of A, B and C using mid-point formula. Mid-point of XY = {(x1 + x2)/2, (y1 + y2)/2} Find the .....