Students and Teachers Forum
Assume that Cost Prince (CP) = x. Since there is a 20% profit, SP = CP + 20% oc CP, or, 1350 = 120x/100 Therefore, CP = Rs. .....
साथी, के भन्नुभएउको हो ? कुरा प्रष्टसँग राख्नुहोस् है त .....
You know, the chief ores of iron are haematite and magnetite. We can extract iron from these .....
A rhombus. Each angle marked with a black dot is a right angle. The height h is the perpendicular distance between any two non-adjacent sides, which equals the diameter of the circle inscribed. The diagonals of .....
The roots of plant are modified basically for following three reasons: 1. for food storage The roots of radish and carrot are swollen as a result of storing food. 2. for mechanical support The aerial roots found in maize and sugarcane .....
माथिको चित्र हेरनुस र यो बुझ्नुस कि पृथ्बिमा भएका जे जति बस्तु छन ति एक अर्का बिना बाच्न .....
Gold is an inert metal. It doesn't react with most of the elements;even with the acids. As a result of this, it is mostly found in pure state. & it is highly stable in nature. It gives yellowish luster, is a great conductor and is .....
Carbondioxide is neither combustible nor the supporter of combustion. That is why it is used as a fire .....
For example, if you are going to write an essay about "Students' Life", at first you will write what do you mean by students' .....
We use 'since' and 'for' to show duration that is 'How long...............' with present perfect continuous. How long have you been teaching in this school? I have been teaching for 12 years.(period of time) I have been .....
'त्रिलोक' भन्नाले 'तीन लोक' भनी बुझिन्छ । 'लोक' भनेको 'विश्व वा संसार' भन्ने बुझिन्छ .....
People from different religion are living in Nepal together. We don't have any violence regarding religion. 81.3% of the Nepalese population was Hindu 9.0% was Buddhist, 4.4% was Muslim 3.0% was Kiratist (indigenous ethnic .....
२) कथामा उठाइएको आर्थिक असमानता सामाजिक समस्या हो भने त्यस आर्थिक असमानताले पात्रका अर्थात .....
Solution Given, Volume of glass flask at 00C Vg0 = 1000 cm3 Volume of mercury at 00C Vm0 = 1000 cm3 Volume of mercury overflowing at 1000C = Vm0 -Vg100 = 15.2 cm3 .....
Slaked lime: calcium hydroxide : Ca(OH)2 Lime water: calcium carbonate : CaCO3 Urea: .....
Acidic foods are believed to taste sour because of their hydrogen ion concentration. Scientists believe that the human tongue determines taste through several different channels. The taste buds that register sour and salty flavors do so .....
जब तपाईँ एउटा टेनिस बललाई विस्तारै हिर्काउनुहुन्छ, बल सजिलै चालमा आउँछ । तर, उत्तिकै जोडले .....
Second law states that : Everbody continues to move uniformly unless an external force is applied to change its speed. Okay you may have seen moving ball. It will stop moving after travelling some distance without appplying force also. Do you .....
Pressure at small cylinder = Pressure at the larger cylinder or, P1 = P2 or, F1/A1 = F2/A2 Thus, by increasing A2, we can easily increase the .....
Second law states that : Everbody continues to move uniformly unless an external force is applied to change its speed. Okay you may have seen moving ball. It will stop moving after travelling some distance without appplying force also. Do you .....
In the long run all factors of production are variable. No factor is fixed. Accordingly, the scale of production can be changed by changing the quantity of all factors of production. Returns to scale relates to the behaviour of total output as .....
When a ray of light passes from an optically denser into an optically rarer medium, it gets bend away from the normal. When a ray of light passes from an optically rarer medium to optically denser medium, it gets bend towards the .....
If a person can't see black board, s/he is suffering from short sightedness. Concave lens must be used to correct this defect of .....
मानिस प्रकृतिको एक घटक हो ।।मानिस बिना प्रकृतिको उपयोग हुदैन ,भने प्रकृतिबिना मानिसको जिबन .....
Accidents are caused because of the following reasons: 1. When we gets over confidents. 2. When we doesnot obey traffic rules. 3.When we run unnecessary. 4. When the things are not kept in proper place at home. 5.When we play without following .....
Here volume of rectangular box=V= 30cm x 15cm x 8cm=........... Volume of slice =v = 30cm x 3/10 cm x 3/10 cm =........................ [ question is saying lengthwise, so length of box = length of slice.] here, we convert mm to cm by .....
The primary consumers obtain their food from plants. The secondary consumers eat primary consumers and similarly the secondary consumers are eaten by tertiary consumers. Thus, if an animal eats meat, it must be atleast the secondary .....
You are most .....
While finding the value of gof(x), we first of use the value of f(x) then only .....
Bee humming bird is the smallest species of bird. It is slightly larger than a bee. It weighs about 1.90 to 2.8 grams, It is around 5.2 to 6.2 cm long. Usually female humming birds are larger than the male humming .....
Nuclear energy is the energy that holds together the nuclei of atoms. Atoms are the most simple blocks that make up matter. Every atom has in its center a very small nucleus. Normally, nuclear energy is hidden inside the .....
While, the fluorescent lamp gives light due to the glowing of fluorescent poweder, on exposure to the ultraviolet rays produced by the mercury vapour colliding with the flowing electrons. The heat produced here is due to the hot .....
You may know that, K.E = mv2/2 Here, m =10kg K.E = 45 J Now, calculate .....
Also workdone = force x distance covered Force = mg = 2 X 10 = 20 N Now, workdone = 20 X 30 = 600 J Time taken = 2 s Calculate power .....
1.Mechanical waves require a medium to propagate.
Electromagnetic waves do not require a medium to propagate. They can propagate in a vacuum.
2.Mechanical waves travel slower than electromagnetic .....
You may know that, Workdone = force X distance covered In this case, Distance covered = 6 m Force = mg = (30+20) X 10 = 500 N. Now calculate .....
Here, mass of deepta (m) = 30kg height (h) = 10m accelearation due to gravity (g) = 10 m/s2 now, potential energy = mgh = 30*10*10 = 3000 Joules This energy stored in the body is equivalent to work done on it. So, workdone = .....
Environmental conservation is important for many reasons, including protecting the ozone layer, maintaining animal and human food chains, preserving potable water and making efficient use of non-renewable resources. According to The .....
You may know that power is the rate of doing work. The power of a bulb is 100 W means that a bulb converts 100J of electrical energy into heat and light energy in 1 .....