Students and Teachers Forum
Every thing that changes velocity requires energy. Without energy every living thing will die. Thankfully that will not happen as long as the sun burns. The sun shines energy onto the Earth, causing wind to blow, water to evaporate and then rain .....
Without sun, then life on earth wouldn’t be possible. The sun warms the planet, without the sun the temperature of the Earth would plummet to just above absolute zero (-273.15°C), warmth only coming from the core of the planet (but it is .....
Here, the slope of AB. Slope m1 = (y2 - y1)/(x2 - x1) = (1 + 4)/(7 + 1) = 5/8 Let slope of the required line be .....
We have, x + y = 3 ------------------(i) 2x + y - 5 = 0 -------------------(ii) Slope m1 = -1/1 = -1 Slope m2 = -2/1 = -2 Solve the given equations (i) & (ii) and get the values of x & y. Which is passing point(x1, y1) of the .....
Here, 4tanA - 3cotA = 0 or, 4tanA - 3/tanA = 0 [ Since, cot = 1/tan.] or, 4tan2A - 3 = 0 or, tan2A = 3/4 or, tanA = √3/2 = p/b Now find h by using pythagoras theorem and find sinA = .....
Marks obtained | 0 - 20 | 20 - 40 | 40 - 60 | 60 - 80 | 80 - 100 |
No. of students | 2 | x | 8 | 5 | 1 |
Here, Table for Q1: Marks No.of students(f) c.f. 0 - 20 2 2 20 - 40 x 2+ x 40 - 60 8 10 + x 60 .....
We know, volume of pyramid = 1/3 × base area × height = 1/3 × BC2 × OP .....
Here, in triangle XYZ, XY = 6 cm YZ = 12 cm ∡X = 80° ∡Y = 40° ∡Z = 180° - 80° - 40° = 60° We know, area of a triangle = 1/2 × a × b × sinC In triangle XYZ, area of .....
Here, ∡AOB = 80° OA = OB (radii of circle), so triangle AOB is an isosceles triangle. Thus, ∡OAB = ∡ABA (= let x) In triangle AOB, ∡OAB + ∡ABO + ∡AOB = 180° or, 2x + 80°= 180° or, x = .....
Here, O is the centre of the circle ∡QRS = 105° ∡PQS =? In the figure, ∡QRS + ∡QPS = 180° or, 105° + ∡QPS = 180° or, ∡QPS = 75° Draw a straight line joining centre of circle (O) to S. Since OP = .....
Let the smallest integer be 2n,n∈R. So the next two consecutive integers will be 2n+2 and 2n+4.
We .....
The given equation is √(2x - 1) = -1 Squaring both sides we get, (√(2x - 1))2 = (-1)2 or, (2x - 1) = 1 or, 2x = 1 + 1 or, 2x = 2 or, x = 2 Thus the equation has only one solution i.e .....
As you know that the formula of volume of sphere is 4/3πr^3 so,,4/3πr3=4851 (according to ur question) or, r3=4851⨯7⨯3/22⨯4 or, r=3√441⨯7⨯3/8 or, r=3√21⨯21⨯21/8 or, r=21/2 so,diameter =2 ⨯ .....
Here, base of given prism is an equilateral triangle. Length of a side of the equilateral triangle (l) = 6 cm Height of the prism (h) = 15√3 cm We know, volume of prism = area of base × height of .....
Here, we have the sides of a triangle; a, b and c = 3 cm, 4 cm and 5 cm respectively When all three sides of a triangle are known, area of triangle = ss-as-b(s-c) .....
भुँडी यहाँ भुँडीको विषयमा केही महत्त्वपूर्ण बुँदा दिइएका छन्, तिनको आधारमा उत्तर लेख्नुहोस् .....
सन्दुक रुइत ‘धैर्य, साहस, दृढ इच्छाशक्ति र सङ्घर्षले नै मानव जीवन सफल हुन्छ’ भन्ने .....
११. (क) नेपालमा भारोपेली, भोटबर्मेली, आग्नेय र द्रविड गरी चार परिवारका भाषा बोलिन्छन् । (ख) .....
१०. (क) नेपालमा विविधताका बीचमा एकता रहेको मौलिक र संमृद्ध संस्कृति रहेको छ । (ख) संस्कृत भाषा .....
(क) शारदाद्वारा पाथीभराको दर्शन गरियो । (ख) म भाइलाई सधैँ गृहकार्य गराउँछु । (ग) मेरो सानो छोरो .....
(क) जानुभएको छ । (ख) लाग्नेछौँ । (ग) पाउलान् । (घ) होओस् .....
(क) उपसर्ग लागेका शब्दः विज्ञान, प्रविधि प्रत्यय लागेका शब्दः भौतिक, मानवता (ख) मानवअधिकार, .....
गुणस्तरीयः विशेषण सानाः विशेषण यसलेः सर्वनाम गर्छः .....
हंसले ठाउँ छोड्नुः टाटे बाघ देख्दा मेरो त हंसले ठाउँ छोड्यो । अवमूल्यनः अहिले सेयरको भाउ .....
(क) सुगम (ख) धर्ती (ग) अनेकार्थी (घ) दीन र .....
स्मृतिः सम्झना असरल्लः अलपत्र शैलः पहाड दिलः .....
MP = CP + 25 % of CP or, 5000 = CP + 0.25 CP or, 5000 = 1.25CP or, CP = 5000/1.25 or, CP = Rs. 4000 SP after discount = MP - Discount % of MP .....
Here, CP = Rs.1800 Profit % = 15% So, SP = CP + P% of CP = 1800 + 15/100 x 1800 = Rs.2070. Again, Discount % = 10%. We know, SP = MP - Discout % of .....
Here, Here, SP with VAT = 7480 Or, 7480 = SP + VAT % of SP or, 7480 = 110SP/ 100 or, SP = 6800. Aain, SP = MP - discount % of MP or, 6800 = 85MP/100 Find MP, which is actual price of TV. Finally, VAT amount = SP with VAT - .....
Here, Marked price of the camera = Rs 3200 Disount percent = 8 % VAT percent = 10% Using formula, Discount amount = Discount% of MP = 8% of .....
Let the fixed price(MP) of car be y. Then, SP = MP - Discount % of MP or, SP = y - 5/100 of y or, SP = 19y/20 Commission amount = 5% of SP = 5/100 x 19y / 20 = 19y/400 Finally man received Rs.288800 So, SP - Commission = 288800 or, 19y/20 - .....
Here, SP = MP - 10% of MP = 9MP/10 Profit = Rs.10 or, SP - CP = 10 or, CP = 9MP/10 - 10................(i) From the another case, SP = MP Profit = Rs.20 or, SP - CP = 20 or, MP - CP = 20 or, MP - 9MP/10 + 10 = 20 .....
Let MP be y. From the First case, MP = CP + 10% of CP or, y = 110CP/100 or, CP = 10y/11...............(i) Again, From the second case, SP = MP - Discount or, SP = y - 10.50...............(ii) Loss = 5% So, SP = CP .....
Here, MP = CP + 40% of CP = 7CP/5. Then, SP = MP - 15% of MP = 17MP/20 = 119CP /100 . According to question, Profit = 75 or, SP - CP= 75 or, 119CP/100 - CP = 75 or, 19CP/100 = 75 Solve and find .....
Here, MP = CP + 50% of CP = 3CP/2. Then, SP = MP - 12% of MP = 88MP/100 = 22MP / 25 = 66CP/50. According to question, Profit = 16 or, SP - CP= 16 or, 66CP/50 - CP = 16 or, 16CP/50 = 16 Solve and find .....
Here, MP = CP + 20% of CP = 6CP/5. Then, SP = MP - 10% of MP = 9MP/10 = 54CP / 50 = 27CP/25. According to question, Profit = 120 or, SP - CP= 120 or, 27CP/25 - CP = 120 or, 2CP/25 = 120 Solve and find .....
Here, CP = Rs.1200 Profit % = 100/3% So, SP = CP + P% of CP = 1200 + 100/3/100 x 1200 = Rs.1600 Again Discount = 20% So, SP= MP - D% of MP or, 1600 = MP -20/100 x MP Solve and find .....
Here, CP = Rs.1400 Profit % = 20% So, SP = CP + P% of CP = 1400 + 20/100 x 1400 = Rs.1680 Again Discount = 4% So, SP= MP - D% of MP or, 1680 = MP - 4/100 x MP Solve and find .....
Here, CP = Rs.4000 Profit % = 20% So, SP = CP + P% of CP = 4000 + 20/100 x 4000 = Rs.4800 Again Discount = 20% So, SP= MP - D% of MP or, 4800 = MP -20/100 x MP Solve and find .....
Here, M P = Rs.550 Discount = 10% CP = ? So, SP = MP - Discount% of MP = 550 - 10/100 x 550 = Rs.495 Again, Profit = 75 or, SP - CP = 75 or, 495 - CP = 120 Solve and find CP. Finally, Required% = (MP - CP) / CP x .....
Here, M P = Rs.1200 Discount = 20% CP = ? So, SP = MP - Discount% of MP = 1200 - 20/100 x 1200 = Rs.960 Again, Profit = 20% or, SP = CP + 20% of CP or, 960= 120CP/100 Solve and find .....
Here, M P = Rs.800 Discount = 10% CP = ? So, SP = MP - Discount% of MP = 800 - 10/100 x 800 = Rs.720 Again, Profit = 120 or, SP - CP = 120 or, 720 - CP = 120 Solve and find .....
Sandwiched between the Asian giants, India and China, Nepal is a South Asian nation. The longitude of Nepal is 83o 56' 18.7722'' N. And, the latitude is 28o 15' 10..8252'' .....
Let the numbers be x and ( 10 - x. ) Since their product is 24 x ( 10 - x ) = 21 or, 10x - x2 = 21 or, .....