You must get  9x = 7y  from above solution. Now, can you do the remaining of the .....

We have given that, number of volume of a cylinder is half of its number of the total surface area .  radius of its base is 7 cm , And we need to  find the volume. Ler h be the height of cylinder  and r be the .....

You might know that,  Perimeter of  plane figure is sum of all side. So perimeter of triangle is sum of its 3 sides. In triangle ABC, AB = 4cm BC = 3cm AC = 4.5cm So perimeter = AB + BC + AC = .......................cm  Put .....

We cant factorise it. So factor of this is .....

Here Total no.of students = n (U) = 290 Ratio of students who like Nepali and English = 2 : 3 So, let n(N) = 2x  and n(E) =  3y No.of students like both = n ( N ∩ E )= 30 And Who do not like both = n (N U E )' = 20 Now, we know .....

This proble is related to indices, I hope you know the rule of indices. We have given,  6x + 1/ 6x = [ 6 X 6 + 1] /6 For simplicity, let 6x = a Then it beomes, a + 1/ a = 37 / 6 or, [ a2 + 1 ] / a = 37 /6  or, 6a2 + 6 .....

Let us take, take an example, Here AE ,  CD and BF are called medians So ,in geometry, a median of a triangle is a line segment joining a vertex to the midpoint of the opposing side. Every triangle has exactly .....

We have given,  x = 21/3 + 22/3    We have to prove, x3 - 6x = 5 To prove this we need to cube both sides of    x = 21/3 + 22/3    So cubing both sides we get; x3 = [21/3 + 22/3  .....

राजा त्रिभुवनको मृत्यु भएपछी,महेन्द्र नेपालको राजा भए । उनले २०१२ बैशाख १ गते गुन्जमान .....

जर्मन शाशक  विलिअ्म् २ एक जिद्दि र घमन्डि शाशक थिए। उनि आफ्नो देशलाइ संसारको शक्तिशालि .....

Here, total no.of electric bulbs = n(S) = 600 40 bulbs are defective= n(D) An electric bulb is selected at random. We have to calculate, the probability that:  a. A selected bulb is defective one =  P (D) = n (D) / n(S)= 40 / .....

Here, Tash bought two televisions at Rs.52000. He sold one of them at 10% profit and another at 10% loss and  selling price of both the television are same, We have to find his total gain or loss percentage. We start by assuming that .....

From above solution, you can say that a = 2 and b = 0 Thus, you can write f(x) = 2x and f(1/x) = .....

To find the LCM or HCF we must factorize the given expression, So, 1st expression =  y7 - 1 / y5   To factorise this we can use some idea, since directly it can not put in formula. i.e;   y7 - 1 / .....

Now, can you recognize(find) in which kind of sentences fall all those above three .....

Here man buys two watches at Rs.120 each(CP). He sells one at a gain of 15% and the other at a loss of 10% . We have to find his gain or loss percent. For this, We have to find the selling price for both the cases. For 1st watch, SP = CP + .....

यहाँ, रोशनले लिएको रकम P मानौँ, ब्याजदर (R) = 5 % समय (T) = 4 yrs नाफा = Rs. 30 प्रश्नअनुसार, C.I – S.I = Rs. 30 or, P1+R100T-1-PTR100=30 or, .....

First splitting the middle terms as: x2 - x - x + 1 Now taking 'x' common from first two terms and '1' from last two terms we get; x(x - 1) - 1(x - 1) Again taking (x - 1) as common we get (x - 1)(x - 1) or (x - .....

Here height of water to be rised =   h =  3.5 cm We need to find the no. of spheres= N . For this find the volume of water to be rised =  π r2 h , put h =3.5cm  and r =  7cm. Find the volume of sphere = .....

In dry air at 0 °C (32 °F), the speed of sound is 331.2 metres per second.  At 20 °C (68 °F), the speed of sound is 343 metres per second, or a kilometre in 2.91 s or a mile .....

They may say that it is the main law of the country. It gurantess the fundamental rights of the people. It gives power to the people as they are the one to elect the representative. It keeps the main organs of the government in check and .....

Reference point is too important in physics. We do all calculations according to the reference points. For instance, we observe the plane flying in the air, velocity of that plane with respect to us is the sum of the velocities of plane and the .....

To solve this question you must know the law of indices such as  x -1  = 1 / x xm . xn  = xm +n ( x / y) m = xm / y m  (xm)n = .....

To convert km/hr into m/sec you can follow the rule given below. 1km/1hr = 1000m/3600sec Thus 76km/hr = (76 x 1000m)/3600 sec Calculate further by .....

We have given, A + B + C = 90° or, A + B = 90° - C Now, operating both sides by tan, (because we need to prove interms of tan) Tan (A + B) = tan(90° - C)   or,TanA+TanB1-TanA TanB=CotC Now, change cot C in tan C   .....

A saturated solution is one that has reached its saturation level for a specific solute (what is dissolved in it). The saturation level depends on the temperature and different solutes have different saturation levels at different .....

Election is the process of introducing fair electoral systems where they are not in place, or improving the fairness or effectiveness of existing systems.   It helps us to keep a check on our leader in regular intervals.  It .....

Here, we need to find the selling price of remaining pencils to get 12 % loss. Now, Cost price of 50pencils = 50 × Rs. 5                                 .....

षडयन्त्र जालझेलको पर्यायावाची शब्द हो ।  गोप्य तरिकाले कसैका विरुद्ध  हानिकारक योजना .....

As we know, to convert the % into number, we have to divide it by 100. Here we have given 50% of 450 = 50 / 100 X 450 Now simplify and get the .....

Now find A-1. then use formula,  X =  .....

Now to find the equation of side AB,  Let A(4,1) = (x1 , y1)  and B = (2,4) =(x2 , y2) So equation of AB is y - y1 = [(y2 - y1) / ( x2 - x1) ]  ( x - x1) or, y - 1 = [ ( 4 - 1) / ( 2 - 4)] (x - 4) Simplify and get equation of .....

To prove that the line joining the point (1,2)and(2,-2) bisects the line  joining of (-3,6)and(5,-2), we have to show the mid-point of these line are same. So, find the mid-point of line joining the points .....

Here, from the given data we can find the equation of st.line. Given that,  Y-intercept= 2 = b, and equally inclined at the axis So, X-intercept will be a= 2  or -2. When a= 2, Equation is,      x/a +y/b =1   Put .....

To find the equation of the straight line which passes through the origin and bisects the straight line joining the point (1, 7) and(7, 1), we need to find the mid point of  (1, 7) and(7, 1) So find mid point of  (1, 7) and(7, 1) Then .....

How it should be celebrated: Flying kites Playing traditional/ bamboo swings  Rejoicing and enjoying festivals with friends and festivals  Banning on animal slaughter Having Cooperation, we feelings and .....

Dashain, one of the greatest festival of Hinds all over the world, starts in the mid-September and ends in the mid-October. Hindus worship Nawa Durga  Bhawani and receive tika and blessings from elders . Dashain is celebrated as .....

हजारी फुल भनेको  एउटै थुँगामा  हजारवटा फुलका  केस्रा हुने फुल हो .....

Please send me image taken from the book of your question .  Or tell me the book name  and .....

Atmospheric pressure is the pressure exerted by the force of air on the earth surface. It is also classified as barometric pressure. With the help of mercury barometer atmospheric pressure can be determined. It is closely related or .....

हरियो, कालो, ठुलो, सानो, पवित्र, घुमाउरो, निन्याउरो, जिज्ञासु, पानीमन्तरे, दुधमुखे, पाकेको, अति, .....

Can you check the question please!  I think no.of sweets is .....

You need to provide .....

As we know, mass of gas use in kitchen is 14.2 kg = M You have to  know that the density of it is 0.55 kg / m3  = D We know  density = Mass / volume  or ,  0.55 kg / m3 =  14.2 kg / V  or, .....

                                                                      .....

Meter is a standard unit by which other units of length can be .....

You know when we dissolve maximum amount of solute in a solvent at a particular temperature,  a saturated solution is formed. When we increase the temperature, the solvent can dissolve more solute. The solution so formed is called .....

We can also remove the excess solute by filtration method. These processes changes a supersaturated solution into a saturated .....

The Earth's crust averages about 18 miles (30 kilometers) thick under the continents, but is only about 3 miles thick under the .....

Then take - sign Or, you can get obstuse angle by subtracting angle which you got from .....