Students and Teacher's Forum

Students and Teachers Forum

तल दिइएको तथ्याङ्कबाट तल्लो वा पहिलो चतुर्थाम्स पत्ता लगाउनुहोस् ।(Compute the lower or first quartile (Q1) from the data given below.)

Class:	5-10	10-15	15-20	20-25	25-30
Frequency:	17	2	1	3	3

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2. Find the median from the following data:

Wages (Rs)	10 - 20	10 - 30	10 - 40	10 - 50	10 - 60
No. of workers:	4	10	14	16	20

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3. Complete the simple arthmetic mean from the given table.

x	f
15	1
20	3
20	9
30	21
35	11
4	5

4. Median of the following data is 24. Find the value of missing frequency x.

Marks obtained	0 - 10	10 - 20	20 - 30	30 - 40	40 - 50
Number of students	4	12	x	9	5

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5. Find lower quartile.

Marks	0 - 9	10 -19	20 - 29	30 - 39	40 - 49
No. of students	5	4	3	2	1

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6. If the average of 40, 45, 30, 35, 35, 38, 42 and x is 37, then what is the value of x?

We have, average = 37 or, (40 + 45 + 30 + 35 +35 + 38 + 42 + x)/ 8 = 37 ( Here number of terms = 8) or, .....

7. Find the mean deviation from mean of the given data :

x	10	20	30	40	50
f	2	3	2	4	3

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8. Native language is better than English language. Justify.

English is the third most widely spoken language in the world, after Chinese and Spanish. The globalization of the world has made the English language the most important language in the world. In the modern world, we learn to speak English from a .....

9. Differentiate between input work and output work.

The initial work which is done on a machine to get an output is known as input work. And the work done by machine on the application of input force is known as output work. Keep in mind that input applied is always greater that output because .....

10. Write the functions of badghar.

Badghar system is practiced among Tharu community of the mid-west and far west of Nepal. It is a practice where Badghar is elected chief of a village or a small group of villages for a year. Badghar literally means a senior citizen of a .....

11. Write the main objective of Melamchi drinking water project.

Some of the major international donors are: World Bank, Japan International Cooperation Agency (JICA), Organization of Petroleum Exporting Countries Fund for International Development (OFID/OPEC), Japan Bank for International Cooperation .....

12. Prepare a model of speech on importance of federal system in Nepal.

Honourable and respected guests, my dear friends and members of the civil society . I am feeling honoured and very happy to express myself on " federal system in Nepal" in front of you. A federal .....

13. In the given figure, AB || CD, TM and TN are the bisectors of ∡BMN and ∡MND respectively. Prove that ∡MTN = 90⁰.

Given, AB || CD TM and TN are the bisectors of ∡BMN and ∡MND respectively Then, ∡BMN = 2 ∡TMN ∡MND = 2 ∡TNM Now, ∡BMN + ∡MND = 180° (sum of cointerior .....

14. What do you mean by drafting development proposal ?

Development is an effort by an individual or by a community for the socio-economic enhancement of the self and the nation by sustainable and proper utilization of all the resources available. However, the developmental activities begin with the .....

15. Prove that: sinA sin(B - C) + sinB sinC sin(A - B) = 0

Please check the question. Something is .....

16. Prove that: sin⁡A+Bsin⁡A-Bcos²A cos²B = tan²A - tan²B

Before starting, sin( A + B ) = sinAcosB + cosAsinB LHS = sin⁡A+Bsin⁡A-Bcos2A.cos2B = sinAcosB + cosAsinBsinAcosB- cosAsinBcos2A.cos2B = sin2Acos2B- cos2Asin2Bcos2A.cos2B .....

17. Prove that: (1 + cot 58⁰) (1 + cot 77⁰) (1 + cot 68⁰) (1 + cot 57⁰) = 4

We have , cot135° = - 1 cot135° = cot ( 58° + 77° ) or, cot135°=cot⁡58° .cot77°-1cot⁡58° +cot77° or,-1=cot⁡58° .cot77°-1cot⁡58° +cot77° or, -1 .....

18. sin⁡39⁰- cos⁡69⁰cos ⁡69⁰+ sin 39⁰ = 3 tan 9⁰

LHS = sin39°-cos69°cos69°+sin39° =sin39°-cos⁡(90°-21°)cos⁡(90°-21°)+sin39° = sin39°-sin21°sin21°+sin39° (cos( 90 - A ) = sin A .....

19. Prove that: cos⁡73⁰+sin⁡43⁰sin⁡43⁰-cos73⁰ = 13 cot 13⁰

LHS .....

20. पाठमा दीइएको ढाचा (अनुस्टुप छन्द) मा आफुलाई मन पर्ने विषयमा पाच स्लोक्को कविता लेख्नुहोस् |

अनुष्टुप छन्द अनुष्टुप छन्द संस्कृत भाषाको एउटा अत्यंतै प्रसिद्ध वार्णिक छन्द हो। .....

21. Which is the oldest sculpture of Nepal?

Nepali sculpture is younger that the art of painting. It was introduced in Lichchhavi period and flourished fully in the Malla period. The image of Baman made of clay (terracotta) in ancient times was installed by Lichchhavi King Mandeva and it is .....

22. Write the functions of mercury barometer and airpump.

Mercury barometers are primarily used for measuring atmospheric pressure while air pump is a different concept. It is used for pumping air. For example you may have used an air pump to pump air in your .....

23. Byakhya gara

प्रश्न राख्नुस् मित्र .....

24. How atmospheric pressure affects weather?

If you are a regular viewer of weather broadcasts, chances are you’ve heard the following from your local TV meteorologist: “plenty of sunshine is in store today as high pressure is in control over the area.” Or “expect .....

25. Show that, ∆ABC ∼ ∆DEC, show the relation of corresponding sides of similar triangles and find the value of AB.

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26. From a logical dialogue an engineer and on the topic 'Challenge for the devlopment of infrastructure in Nepal'.

Hari: Hello. I am Hari Dahal. I have come here to learn about the challenges of carrying out developmental activities. Engineer: Oh! nice to learn about you. Well, you know the fact that Nepal is a country having .....

27. Study the given triangle. If MN // BC, AM = 4 cm, AN = 4 cm, NC = 6 cm and BC = 5 cm, find the value of a and b.

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28. List the elements of the given pairs of sets and state with reasons whether they are equal or equivalent sets.
P = { x : 2 ˂ x < 10, x ∊ odd numbers} and Q = { y: 3 ≤ y < 10, y ∊ odd numbers}

Here, P = { x : 2 ˂ x < 10, x ∊ odd numbers} ={3, 5, 7, 9} Q = { y: 3 ≤ y < 10, y ∊ odd numbers} = {3, 5, 7, 9} Here, P = Q since all the elements of P and Q are .....

29. What is the chief aspect of Nepalese culture?

The chief aspects of Nepalese culture are as follows: - Peace and harmony - Unity in .....

30. Which diseases are spread by the mosquito?

The diseases like malaria, dengue, yellow fever, West Nile virus, chikungunya, tularemia, dirofilariasis, elephantiasis etc are spread by the .....

31. What role should the nepalese women learn from the life eleanor roosevelt? Write in a point.

Eleanor Roosevelt can be taken as a symbol of determination, courage, hope, reason and affection. These are the virtues that makes her up. This means the lesson the woman can learn from her is we should also be visionary. They should be committed .....

32. How do carpenters take care of their tools?

Carpenters are the people who construct, erect, install, and repair structures and fixtures made from wood and other materials. Carpenters are involved in many different kinds of construction, from the building of highways to bridges to the .....

33. Find the equation of the right angled isosceles triangle whose vertex is (-2, -3) and whose base is x = 0.

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34. Find the equation of the line passing through the point of intersection of the lines x + 2y = 4 and x = 2y and parallel to the line 6x - 7y + 8 = 0.

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35. Find the equation of the straight lines passing through the centroid of the triangle formed by the vertices (3, -4), (-2, 1) and (5, 0) and (i) parallel to x - 3y = 4 and (ii) perpendicular to 4x - 3y = 5.

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36. Find the equation of straight line parallel to the line joining the points (5, 4) and (2, 2) and passing through the mid-point of the line segment joining (0, 7) and (8, 7).

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37. Find the equation of the line parallel to the line 3x - 2y = 5 and passing through the midpoint of the line segment joining the points (-4, 2) and (2, 4).

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38. Prove that: tan 80^o = tan10^o + 2tan70^o

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39. Prove that: cot 20^o= tan 20^o + 2 tan 50^o

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40. Prove that: (cos 17^o - sin 17^o)/(cos 17^o + sin 17^o) = cos 62^o cosec 62^o

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41. Prove that: (cos 10^o - cos 10^o)/(cos 10^o + cos 10^o) = sin 35^o sec 35^o

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42. Prove that: sin 38^o - cos 68^o)/(cos 68^o + sin 38^o) = √3 tan 8^o

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43. Prove that: (cos11^o + sin11^o)/(cos11^o - sin11^o) = tan 56^o

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44. Prove that: (sin70^o - cos70^o )/(sin70^o + cos70^o) = tan25^o

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45. Prove that: sinα + sin(α + 2π^c/3) + sin(α + 4π^c/3) = 0

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46. Bhaskar

Please send a complete .....

47. Why are the elements of 0 group are gasses?

Elements of group 0 are called noble gases. These elements have stable arrangements of electrons in their outermost shell. The chemical reactivity of a group highly depends on the number of electrons in the outermost shell. A stable element .....

48. देवकुमारी थापाले शिक्षा स्वास्थ्य र साहित्यमा पुर्याएको योगदान लेख्नुहोस् ।

देवकुमारी थापाको जन्म वि.सं. १९८५ साल वैशाख २ गते भारतको खरसाङमा भएको थियो । उनका पिताको नाम .....

49. Explain the important of rodhighar in gurung community in Nepal?

Rodhighar is a social practice prevalent in Gurung community. In this tradition, the young boys and girls get toghther at rodhighar. They dance and sing in the evening and try to know each other. This act as a paltform for the young generation to .....

50. What is relation between environment with science and technology? Clarify it.

You may be wondering what could be the relation between environment and science-technology. Let me tell you there is a keen relation between these two aspects of the environment. The kind of technology we use determines how our environment is .....