National heritages are the valuable property of a country. They reflect the aspiration, feelings, tradition and civilization of our ancestors. Thus, we have to preserve our national heritage. The advantages of preserving national heritage are as .....

                                      हिमाल नेपाल सुन्दर हिमश्रृङ्खलाले धनी .....

After the parva of 1942 BS, the Shumshers rose into power. Gehendra Shumsher also became powerful as he became the head of the Police Department. An army troop was going to take part in Rawalpindi under the command of Bir .....

Similarly, Nepal is a democratic country. It is a secular state where people of different religions are living happily. They are free to involve in different religious festivals. The Newari people can get help from the Chhetri .....

Here, we have given, Volume(V) = 240 cm3 Height(h) = 12 cm Area of base(A) = ? We know, Volume (V) = A x h or, 240 cm3= A x 12cm Hence, A = 20cm2 , which is required .....

.....

Let the radius of the cylinder be 'r'. We know, Curved Surface Area(CSA) = 2πrh or, 8792 = 2 x 22/7 x r x 7 or, r = 8792 /44 = 2198/ 11 m. Now,  We know, Volume(V) = πr2 h = 22/7 x ( 2198/ 11)2 x 7 .....

We know, Volume of cylinder of radius  r  and hright  h is, V = π r2 h or, 14m3 = 22 / 7 x r2 x 2m or, r2 = 2.25m2 or, r  = √[  2.25m2] Hence r  = .....

Here, Volume(V) = 1540 cm3 Diameter(d) = 20 cm Therefore, Radius(R) = d/2 = 10 cm Now,  We know, V = πR2h or, 1540 = 22/7 x 102 x h or, h = (1540 x 7)/(22 x 100) = 4. 9  Hence, Height(h)  = 4.9 .....

Here,  Total surface area of solid = Area of square base + LSA of prism + LSA of pyramid i. e ;   TSA  = a2 + 4ah + 2al                       = [6cm]2 + 4 x .....

Here, Volume(V) = 120 cm3 Height(h) = 8 cm Area of base(A) = ? We know, V = A x h or,120 = A x 8 Hence, A = 15. Hence, Area of base = 15 .....

Here, Curved Surface Area(CSA) = 1065 m2 Height(h) = 14 m We know, CSA = 2πrh or, 1065 = 2 x 22/7 x r x 14 Therefore, r = (1065 x 7)/(2 x 22 x 14) = 1065/88 Now, Volume(V) = πr2h = 22/7 x (1065/88)2 x 14 = 6444.46 .....

When, radius  is double and height is halved,  New volume V' = π(2 r)2 ( h/2) = π 4r2 x 1 / 2 h = 2( π r2 h)  = 2(V) i.e; volume will be double. .....

.....

Here to prove it,  Lets find the value of sin2A + sin2B + sin2C sin2A + sin 2B +sin2C = 2 sin(A+B)cos(A-B) + 2sinC cosC =2sinC cos(A-B)+2sinC cosC =2sinC (cos(A-b) + cos C) =2sin C(cos(A-B) - cos(A+B) ) = 2sinC . 2sin A sin B =4 sinA .....

We know, Perimeter(P) of a square with length 'l' = 4l i) When  l = 6.5 cm, P = 4l = 4 x 6.5 = 26 cm. Hence, Perimeter = 26 cm ii) When  l = 7.4 cm, P = 4l = 4 x 7.4 = 29.6 cm. Hence, Perimeter = 29.6 .....

Similarly, there is variation in customs in accordance with the variation in geography in Nepal. The customs of the people living in Himalayan region is different that of Terai region. Due to severe cold, people in Himalayan region wear woollen .....

Let the number be 'x'. Dividing the number 'x' by 4 leaves quotient 5. Hence,  x/4 = 5 or, x = 4 x 5 = 20 Hence, the number is .....

Here, Length(l) = 10 m Breadth(b) = 0.6 m Height(h) = 2 m Total Volume = l x b x h or, Volume(V) = 10 x 0.6 x 2 = 12 m3  Now, Total number of blocks(N) = 2000 We know, Volume of each blocks(VB) = V/A = 12/2000 = 0.006 m3 = 0.006 x .....

Here, Internal radius(r) = 12 cm External radius(R) = 16 cm Height(h) = 10 cm Volume of metal = Volume of External Cylinder - Volume of internal cylinder = πR2h - πr2h = πh(R2 - r2) = 22/7 x 10 x (122 - 102) = 22/7 x .....

We know, Volume of cuboid = l x b x h Here, Length(l) = 1.5 cm Breadth(b) = 2 cm Height(h) = 4 cm Therefore,  Volume(V) = l x b x h = 1.5 x 2 x 4 = 12 cm3 We know,  Volume of the tank = Volume of water stored = 12 .....

Let the sum be 'x'. Now, remaining sum = 1900 - x. Here, Given Principle(P1) = x Time(T1) = 4 years Rate(R1) = 5 % Therefore, Interest1 (I1) = P1T1R1/100   = (x * 4 * 5)/100 = x/5 Hence, I1 = x/5  Again, For .....

Here, Principle(P) = Rs. 40,000 Interest Rate(R%) = 5 % Time(T) = 4 years Tax rate(R%) = 5 Now,  Interest for four years(I) = PTR/100 = (40000 x 4 x 5)/100 Interest for four years(I) = Rs. 8,000. Now,  Interest after Income tax = .....

Let the Principal be 'P', Rate be 'R'. From Given, Interest(I) = 25 % of P = 25/100 x P I = P/4 And, Time(T) = Rate = R We know, I = PTR/100 or, P/4 = (P x R x R)/100 or,R2 = 25 or, R = 5  Hence, Rate (R%) = 5 .....

Again, y = (9k + 7.1)/ (k + 1)  put k = 2/3, you will get required value of .....

.....

Here, Area of the base of prism, A = 48 cm2.                 Height, h = 8 cm. We know,      Volume of prism, V = Ah/3                    .....

.....

Let 'h' be height of the cylinder, according to question,   r + h = 124                                     or, h = 124 - r = 124 - 14 .....

When, height is double and radius is halved,  New volume V' = π( r/2)2 (2 h) = π r2/ 4 x 2 h =1/2( π r2 h)  = 1/2(V) i.e; volume will be half .....

Here, Length, l = 2.5 m          Breadth, b = 1.50 m          Volume, V = 3.75 m3  let, Height = h We know, V =  lbh         or, 3.75 = 2.5 x 1.5 x h   .....

Here, nth term = tn = 2n + 1   So, 5th term =  t5 = 2 x 5 + 1 = 10 + 1 = 11 And, 12th term =  t12 = 2 x 12 + 1 = 24 + 1 = .....

Here, Area of the base of a triangular prism, A = 32 cm2.                 Height, h = 6 cm. We know,      Volume of prism, V = Ah/3              .....

.....

Mercury is a terrestrial planet, which means it is an Earth-like planet made up of rocks or metals and has a hard surface. Other planets like Saturn are made of gas.  Mercury is one of the planets that can be seen from earth without a .....

we know that the equation of the circle given by,           (x - x1)(x - x2) + (y - y1)(y - y2) = 0 [ where, (x1, y1) and (x2, y2) are coordinates of diameter] So, (x - 3)(x - 4) + (y - 2)(y + 7) = 0 or, .....

You may know 1 month = 30 days so, 1 month 10 days = (1 x 30 + 10) days = 30 + 10 = 40 .....

Here we have given more than and less than ogive curve. If we draw perpendicular line from the interesection point of more than and less than ogive curve to x aixs it meet in between 15 - 20.  So median class (15 - .....

Name of the Historical Place : National Museum Chhauni Kathmandu Things Seen in the Museum:  - five-foot tall limestone statue of Ansu Verma - Buddhist art and artifacts - a collection of rare coins and stamps of Nepal from the ancient .....

You may know that the earth acts as a giant magnet with North and South poles. But these points are not exactly the true north and south.  So, there is a difference between the two poles. This difference between true north and magnetic .....

When two magnetic fields are acting at the same place, the resultant field has a special feature. At a particular point, the compass needle does not point in any particular direction, then there is no net magnetic field at the point. Such a .....

You might have already learned about electrons. Electrons carry electrical charges. Metals have free electrons in their outer shells. These electrons can flow easily when electricity is provided. Hence, metals can transfer .....

ii) Inversely proportional to its cross-sectional area (thickness)  i.e. R ∝ 1              A or, R ∝ 1            (∵ Area of wire =  .....

Potential difference: 1) It is the amount of work to be done to move a unit positive charge from one point to another point. 2) It is also measured in volts(V). 3) A potential difference does not remain constant. 4) A potential difference is a .....

Let the resistance of a wire of length 'l' and Cross Sectional Area 'A' be 'R'. We know, Resistance of a wire(R) is directly proportional to the length of the wire 'l'. ie, R α l .....

The relationship between the packing of magenetic lines of force and strength of magnetic field is: The more lines of forces in magnet through a region, the stronger the magnetic field. Due to close packing of lines of force near poles of bar .....

Here, Current(I) = 2 A Potential Diffeerence(V) = 10 V Resistance(R) = ? We know, V = IR [Ohm's law] or, 10 = 2 x R Therefore, R = .....

Here, Current(I) = 0.2 A Resistance(R) = 22.5 Ω Potential difference(V) = ? We know, From Ohm's Law, V = IR = 22.5 x 0.2 = 4.5 V. Hence, Potential difference required = 4.5 .....

Here, X are the two neutral .....