Students and Teacher's Forum

Students and Teachers Forum

1. How many hearts does an octopus have?.........

Octopuses have three hearts. One systemic heart that circulates blood round the body. Two branchial hearts that pump it through each of the two .....

2. Which animal has the sharpest hearing in the world?.........

Moth: Recently, moths have been named as having the best hearing in the world, in both the animal and human .....

3. Which is the only bird that can fly backwards?..

Hummingbirds is the only bird that can fly .....

4. What is the longest snake in the world?..

Medusa, a reticulated python, 7.67 meters (25 feet, 2 inches) long in its official world record measurement, on October 12, 2011 is the longest snake in the .....

5. How many pairs of wings does a bee have?..

Bees have two pairs of .....

6. What is the name of the animal which has a tongue longer than its body?

Chameleon is the animal which has a tongue longer than its .....

7. How many teeth does a mosquito have?......

A mosquito has no teeth. It has 47 sharp edges like teeth present in proboscis. These are used for piercing into skin or through the layer of .....

8. From what animal is Pashmina shawl made?...........

The wool comes from four distinct breeds of the Cashmere goat; namely the Changthangi or Kashmir Pashmina goat from the Changthang Plateau in Kashmir region, the Malra from Kargil area in Kashmir region, the Chegu from Himachal Pradesh in northern .....

9. What was the name of the first cloned sheep?............

Dolly (5 July 1996 – 14 February 2003) was a female domestic sheep, and the first mammal cloned from an adult somatic cell, using the process of nuclear .....

10. What does an earthworrn breathe with?

Worms breathe air in and carbon dioxide out, just like us, but they don't have lungs. They can't breathe through their mouth, and certainly can't breathe through their nose because they don't even have one! They breathe through their .....

11. What part of the body is used by snake to smell?.. .......

Sankes use their tongue to .....

12. Which country is the home of largest population of tigers in the world?....

India is home to 2,226 wild tigers which is ⅔ of the world population of tigers. Countries with the highest number of tigers. Rank .....

13. Write short notes on the Prime Meridian line and Equator.

Equator: The equator is an imaginary line around the middle of a planet or other celestial body. It is halfway between the North Pole and the South Pole, at 0 degrees latitude. An equator divides the planet into a Northern Hemisphere and a .....

14. If ab=10 cm bc=8cm angle dca= 50 ° angle cad =70° find area of parallelogram abcd

Here, ∡ABC = 180o - 50o - 70o = 60o [ Since, sum of angles of a triangles is 180o.] Now, Area of //gm ABCD = AB x BC x Sin∡ABC .....

15. Simplify: (16 ÷ 81)^-3/4

Here, (16 / 81)-3/4 = (24/34)-3/4 [ Since, 16 = 24& 81 = 34.] = (2/3)4 x (-3/4) = (2/3) - 3 =..........Can you complete .....

16. What role can you play to minimize corruption? Write in points.

Corruption is a social problem. It delays the development of any nation. Therefore, there should be a joint collaboration to control corruption. As a student, one can play a supportive role which helps to control .....

17. Three years ago, the sum of the ages of the father and son was 48 years .After three years the ratio of the ages of the father and son will be 3:1, then how much old is the father than his son? Find it.

Let the present age of father and son be x and y repectively. By question, ( x - 3 )+ (y - 3) =48 x - 3 + y - 3 = 48 x + y - 6 = 48 x + y = 48 + 6 x + y = 54 -------------------- [I] Again, ( x + 3 ) ∕ ( y + 3 ) = 3 ∕ 1 x + 3 = .....

18. Find the greatest number which is exactly divisiable by 14, 21 & 28, without leaving remainder.

The greatest number wihich is exactly divisible by 14,21 & 28 is LCM of these three numbers. So, find the LCM of these three numbers, which is your .....

19. What does intrecept means?

On co-ordinate geometry, there are two intercepts, X - intercept (a): an x-intercept is a point on the graph where y is zero, and Y - intercept(b) : a y-intercept is a point on the .....

20. किन प्राकृतिक स्रोतमा विकृति आउँछ ?

प्राकृतिक स्रोतमा विकृति आउँछ किनभने प्रदूषण्को कारणले प्रकृतिलाई पनि असर .....

21. If A+B+C = π ^c , prove that :

⁡sin2A+sin2B+sin2C ⁡sinA+ sinB+sinC=8sinA2 sinB2 sinC2

I hope you have done that Sin2A + sin2B + Sin2C = 4 sinA sinB sinC Now use formula SinA = 2sinA/2.cosA/2, you will get = 4.2sinA/2cosA/2. 2 sinB/2 cosB/2. sinC/2 cosC/2 And may also have .....

22. What do you understand by 'Water of Nepal investment of people'?

We know that Nepal is rich in water resource. Nepal is the second largest country in the world in water resource. The estimated hydroelectricity potentiality is 830,000MW. Thus, generation of hydroelectricity is one of the prospects for the .....

23. Which part becomes modified as the tusk of elephant?............

Tusks are elongated, continuously growing front teeth of .....

24. A merchant allows a discount of 15% on a least model of refriginator and sometimes later gives another discount of 10% if the mpis rs 28000 what is the final selling price what would the selling price be if the first and the second discount are interchanged

Here, MP = Rs.28,000 SP after 15% discount = MP - 15% of MP = Rs.28000 - 15/100 x Rs.28000 .....

25. What is the CGS unit of work?

Unit of work in CGS is erg. One erg is the work done by a force of one dyne exerted for a distance of 1 cm. 1 erg = 1 gm cm square/ second square. SI unit of work is Joule. 1 Joule = 107 .....

26. what is v³

appreciated stopped applauded happened accepted added Above verbs are v3. The past participle of the main verb is also called v3 in .....

27. Why do more people live in terai despite the hot climate?

The reasons behind a large number of population living in Terai are: - Terai is developed than Hilly and Himalayan region in infrastructures where people get more facilities. - Terai is composed of fertile soil where people engage in agriculture .....

28.

कुन प्रश्नको उत्तर लेख्ने हो, प्रष्ट हुन सकेन .....

29. What is the 17^th term of the sequene t_n =nn+3n+1?
What is the 440^th term of the sequene t_n=nn44-1 ?

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30. Prepare a brief news report on an event has recently happened in your locality

Torrential rain-triggered floods inundate Bhaktapur

Jul 12, 2018-Normal life has been thrown out of gear in Bhaktapur after many areas including Madhyapur Thimi have been inundated due to the flooding caused by swollen Hanumante River following .....

31. The n^th term of the sequence is -1n-1 15n n2-4 . Find its 5^th and 6^th terms.

The n^th term of the sequence is -1n-1 15n n2-4. Find its third and eight terms.

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32. Calculate the size of unknown angles:

Here, a + 2a + a = 180 [ Sum of angles in straight line ] 4a = 180 a = 45 x = a = 45 [ Being vertically opposite angle ] z = a = 45 [ Being vertically opposite angle ] y = 2a = 2∗45 = 90 [ Being vertically opposite angle .....

33. A resturant earns 5% profit of total transaction and distributes the yearly bonus to its employees on their monthly salary scale :

Salary	Rs. 4000- Rs. 6000	Rs. 6000- Rs. 8000	Rs. 8000- Rs. 11000
Bonus based on the total transaction	0.10%	0.08%	0.06%

If the company's transaction is Rs. 4 crore in a fiscal year , find the bonus received by the employees with the following basic salaries:
a) Rs.5500 b) Rs. 7000 c) Rs. 8500 d)Rs. 10500

a) Rs.5500 is lies on the scale Rs.4000 - Rs.6000. So he get 0.10% bonus. Total profit = 5% of 4 crore = 5/100 ⨟ 40000000 = 2000000. So, bonus = 0.10% of .....

34. Calculate the size of unknown angles.

Here, 160 + 3p + 2p = 360 [ Angles in complete turn ] 160 + 5p = 360 5p = 360 - 160 5p = 200 p = 200 ∕ 5 p = 40 Hence, 3p = 3 ∗ 40 = 120 2p = 2 ∗ 40 = .....

35. Find the unknown angles:

Here, 2x + x = 180 [ Sum of angles in co-interior angle ] 3x = 180 x = 60 y = x [ Being alternate angles between same parallel lines ] y = 60 z = 2x = 2∗60 = 120 [ Being corresponding angle .....

36. Solve:
i) 16434÷125618

31251024ii) 5

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37. Find the antipode of 40⁰ northern latitude.

Answer: The antipode of 40⁰ northern latitude is 40⁰ southern latitude. Explanation: In geography, the antipode of any spot on earth is the point on earth's surface diametrically opposite to it. The antipodes of a region similarly .....

38. Simplify:
1-2m 1-1m-21+3m-3

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39. Simplify:
1+1p 1+1p-11-2p+1

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40. सबै मानिस उस‌तै हुन भनने अाधार के हो ?

सबैको मुटु पनि एउटै हुन्छ .....

41. जैविक विविधता भनेको के हो?

जीवहरुको बीचमा पाइने वविधतालाई जैविक विविधता भनिन्छ । जस्तैः हात्ती, बाघ, गैँडा, .....

42. प्राकृतिक दृष्टिले खप्तड कस्तो छ?

प्राकृतिक दृष्टिले खप्तड अत्यन्त सुन्दर छ । यहाँ सुन्दर फाँटहरु, अग्ला, होचा .....

43. भूगोलका आधारमा खप्तडको परिचय देऊ।

यहाँ हिमाल, पहाड र उपत्यकाको सुन्दर दृश्य देख्न सकिन्छ । यो क्षेत्र समुद्र सतहबाट .....

44. Here is the text.
questionimage

ल ठीक छ .....

45. Here is the text.
questionimage

ल ठीक छ .....

46. Here is the text.
questionimage

ल ठीक छ .....

47. If x=3^1∕3+3^2∕3, prove that x³-9x-12=0

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48. In february 14, 2014 the cost of 10 gram silver is Rs.7675. Find the cost of 1 gram silver.

Here, Cost of 10 gram silver = Rs. 7675 Cost of 1 gram silver = Rs. 7675 ∕ 10 = Rs. .....

49. उखान को अर्थ:
स्वादे जिब्रो अल्छे तिघ्रो
घोडा चढ्ने लड्छ
एक हातले ताली बज्दैन
मेरो गोरुको बाह्रै टक्का
हुने बिरुवाको चिल्लो पात

स्वादे जिब्रो अल्छे तिघ्रोः काम गर्न चाहिँ अल्छी गर्ने अनि खान चाहिँ मीठो चाहिने घोडा चढ्ने .....

50. If fog(x) = 2x+3, find f(x) when g(x) = 4x-1.

Given, Fog(x) = 2x+3 g(x) = 4x-1 Then, fog(x) = 2x + 3 = 2(4x-1) + 3 = 8x - 2 + 3 = 8x + 1 Hence, f(x) = 8x + .....