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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 10401. |
Find the number of terms in each of the the following APs ? 7,13,19,....,205 |
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Answer» Sorry answer is 34 Amwer is 33 by a+ (n-1)d Hii shruti 34 |
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| 10402. |
Formula of frustum of cone ? |
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| 10403. |
A a means |
| Answer» Myself ayush Sharma | |
| 10404. |
The angle of elevation of a jet plane from a point A on the ground is 60 |
| Answer» Let us suppose that P\xa0be the initial position of the plane and let Q be the final position of the plane respectively and suppose A be the point of observation. Let ABC be the horizontal line through A.According to question, it is given that angles of elevation of the plane in two positions P and Q from a point A are 60° and 30° respectively.{tex} \\therefore \\quad \\angle P A B = 60 ^ { \\circ } , \\angle Q A B = 30 ^ { \\circ }.{/tex}It is also given\xa0that PB = 1500{tex} \\sqrt { 3 }{/tex}\xa0metresNow, In\xa0{tex} \\Delta A B P,{/tex}\xa0we have{tex} \\tan 60 ^ { \\circ } = \\frac { B P } { A B }{/tex}{tex} \\Rightarrow \\quad \\sqrt { 3 } = \\frac { 1500 \\sqrt { 3 } } { A B }{/tex}{tex} \\Rightarrow{/tex}\xa0AB = 1500 mAgain, In\xa0{tex} \\Delta A C Q,{/tex}we have{tex} \\tan 30 ^ { \\circ } = \\frac { C Q } { A C }{/tex}{tex} \\Rightarrow \\quad \\frac { 1 } { \\sqrt { 3 } } = \\frac { 1500 \\sqrt { 3 } } { A C }{/tex}{tex} \\Rightarrow \\quad A C = 1500 \\times 3 = 4500 \\mathrm { m }{/tex}{tex} \\therefore{/tex}\xa0PQ = BC = AC - AB = 4500 - 1500 = 3000 mTherefore, the plane travels 3000 m in 30 seconds.Hence, speed of plane is =\xa0{tex} \\frac { 3000 } { 30 } = 100 \\mathrm { m } / \\mathrm { sec } {/tex} | |
| 10405. |
Haii |
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Answer» Anjali How r u Hello Hello anjali |
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| 10406. |
Koi friend banega |
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Answer» Itanai Sarai freind Arav right Okk Rimsha brainly pe aao.. Yaa Okay Phele bhi koi Aa aya tha isliye bola Myself ayush Sharma AA means arav right Main banuga Yes |
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| 10407. |
Prove that a sec^2 theta - 5 tan^2 theta = 4 sec^2 theta + 5 |
| Answer» Convert tan2A into sec2A-1 | |
| 10408. |
Why all subject are not hindi? |
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Answer» Bcoz....our study pattern in english.... Cbse... Government se puchho Tuze CBSE pata ka mutle pata hai Jao scientist se pucho |
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| 10409. |
Anyone who is in class 10 |
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Answer» Batao kya baat h ?????? Waah kya bat hai Nishtha is right Yes... Yaha Sab 10 class k hi h |
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| 10410. |
What is thalse theorm |
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Answer» Good night friends Hey khushi Solve :- for u & v 4u – v = 14uv 3u + 2v = 16uv where u≠0, v≠ 0 BPT theorem Hi anu Theorem 6.1 in ch 6 It\'s thales |
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| 10411. |
Roots of 6a |
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Answer» It is not correct answe Sorry sorr +_3√a |
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| 10412. |
What is me |
| Answer» What????? | |
| 10413. |
Hy someone there? |
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Answer» Say how we can help you Hlw Hiiiiii Hlo supriya |
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| 10414. |
If rq and rp are tangents to a circle with centre o then prove ro=rq +rp |
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| 10415. |
If rq and rp are the tangents to a circle with centre o then prove that or =rp + rq |
| Answer» In triangle ROQ using pythagoras thm ro= rq + oq. Now in triangle ROP, ro = rp + op now from both situations oq=op they are radius thus, ro = rq+rp | |
| 10416. |
Anyone having blue of maths marking scheme |
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Answer» Its ok No information about it sorry bro And how many will they have Like : which chapter will have 1 marks question 2 marks Im asking about marking scheme of question Statistics and probability 11 marks Real numbers 6marks. Algebra 20marksCoordinate geometry 6marksGeometry 15marksTrigonometry 12marksMensuration 10marksStatisti No that is marking scheme of chapter.im asking marking scheme of questions Bro see in this app syllabus section ok? Ok.im waiting Wait for 5 minutes Give me there R u in facebook Give me Yes I am having |
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| 10417. |
What are hydrocarbons |
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Answer» Compound made up of hydrogen and carbon only is called hydrocarbons. Compounds which are made up of hydrogen and carbon.... The chan of carbon and hydrogen called hydrocarbon a compound of hydrogen and carbon, such as any of those which are the chief components of petroleum and natural gas."the rain is rich in benzene and hydrocarbons" Compounds made up of carbon and hydrogen |
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| 10418. |
X=2/3 and x=-3 substitute this values in ax2 +7x +b =0 find the value of a and b |
| Answer» We have, ax2 + 7x + b = 0Since x = {tex}{2 \\over 3}{/tex}, -3 are the solutions of the given equationSubstitute x = {tex}{2 \\over 3}{/tex} in the given equation, we get{tex}a({2 \\over 3})^2 + 7({2 \\over 3})+b =0{/tex}{tex}\\implies {4a \\over 9} + {14 \\over 3} + b =0{/tex}Multiplying the equation by 9, we get4a + 9b + 42 = 0 ......(i)Now, substitute x = - 3 in the given equation, we geta(-3)2 + 7 (-3) + b = 09a +b - 21 = 0 ........(ii)Multiplying the equation by 9, we get81a +9b - 189 = 0 ........(ii)subtracting(ii) from (i), we get-77a = -231 or a = 3Substitue a =3 in (i), we get4(3) + 9b +42 = 0{tex}\\implies{/tex}9b + 54 = 0 or b = -6So, a = 3 and b = -6 | |
| 10419. |
What is antacid??? Fast plzzz... |
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Answer» It is used in acidity Antacids are bases which neutralise the excessive acids .....for example Mg (OH)2 It is used in acidity |
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| 10420. |
Still 22 days for board exam all the best to you all |
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Answer» Thanks Same to you Same 2u S2u☺☺ Same to you Same to you✌✌✌✌✌✌✌✌✌ Same 2 u ?? |
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| 10421. |
Gud morning aayush nd nikki |
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Answer» Good morning ishu It\'s not the time to talk so byeee nd have a great day?????? |
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| 10422. |
Mr rao reaches his office at 9:30 am and leaves 5:45 pm how long he stay in his office |
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Answer» 8.15hr Ya 8:15 hours 8.15 hr |
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| 10423. |
Prove that in triangle all side are equal |
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| 10424. |
navanka?? online ho?? |
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Answer» me baad me baat karugi aaj mera paper h byyy charthawal se kha se ho?? yes bolo |
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| 10425. |
What is the ratio of the TSA of solid hemisphere to the square of its radius |
| Answer» {tex}{/tex}Let radius of the sphere = r\xa0Ratio =\xa0{tex}\\frac { \\text { Total surface area of hemisphere } } { \\text { Square of its radius } } = \\frac { 3 \\pi r ^ { 2 } } { r ^ { 2 } } = \\frac { 3 \\pi } { 1 }{/tex}{tex}\\therefore{/tex}\xa0Total surface area of hemisphere : Square of radius = {tex}3 \\pi : 1{/tex} | |
| 10426. |
Hey guys. ??? |
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Answer» Hi. Gm btw happy teddy day? dehli aap kha se ho g navanka tyagi ho mast but apka real name?? ?? hlo harshkase hi |
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| 10427. |
What is π |
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Answer» 22/7 It is irrational |
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| 10428. |
Prove that 1+1=3 |
| Answer» Differential calculus proof:Firstly, getting on with the calculus proof, we know thatx3=x2+x2+x2+...+x2(xtimes)differentiating both sides w.r.t. x on both sides we get,3x2=2x+2x+2x+...+2x(xtimes)which on adding we get,3x2=2x.xwhich is true for all x, and putting x=1 we get,3=2 or 3 = 1+1 | |
| 10429. |
a=-1, d=1/2 |
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| 10430. |
The mean of the following frequency is 50 0-20 1720-40 f140-60 3260-80 f280-100 19 |
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| Answer» | \t\t\t0-20 20-40 40-60 60-80 80-10017 p 32 24 1910 30 50 70 90170 30p 1600 1680 1710Total{tex}\\sum {{f_i}} = p + 92{/tex}\xa0{tex}\\sum {{f_i}} {x_i} = 30p + 5160{/tex}\tUsing the direct method,{tex}\\overline x = \\frac{{\\sum {{f_i}{x_i}} }}{{\\sum {{f_i}} }}{/tex}{tex} \\Rightarrow 50 = \\frac{{30p + 5160}}{{p + 92}}{/tex}\xa0{tex} \\Rightarrow {/tex}\xa030p + 5160 = 50 (p + 92){tex} \\Rightarrow {/tex}\xa030p + 5160 = 50p + 4600\xa0{tex} \\Rightarrow {/tex}\xa050p - 30p = 5160 - 4600{tex} \\Rightarrow {/tex}\xa020p = 560{tex} \\Rightarrow p = \\frac{{560}}{{20}} {/tex}{tex}\\Rightarrow p = 28{/tex}Hence, the value of p is 28. | |
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| 10431. |
important chapters for final exams 2018 |
| Answer» Which subject | |
| 10432. |
What is probability of impossible event |
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Answer» 0 0 |
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| 10433. |
Find the value of k for which the quadratic equation (k+4)xsquar+(k+1)x+1 |
| Answer» We have, (k+4) x2 + (k+1)x + 1= 0Here a = (k+4), b = (k+1), c =1{tex}\\implies{/tex}D = b2 -4ac = (k+1)2 - 4 (k+4) (1)= k2 +1 + 2k - 4k -16= k2 -2k -15For equal roots, D = 0{tex}\\implies{/tex}k2 - 2k -15 = 0{tex}\\implies{/tex}k2 - 5k + 3k -15 = 0{tex}\\implies{/tex}k (k - 5) +3 (k - 5) = 0{tex}\\implies{/tex}(k+3) (k-5) = 0Either k+3 = 0 or k-5 = 0{tex}\\implies{/tex}k = -3, 5 | |
| 10434. |
How many tangent circle have? |
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Answer» Hii riya Infinitely Infnity A circle can have infinite tangents |
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| 10435. |
What is the formula of 20th term from the last term of ap |
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Answer» S = n/2(a + l ) First find n value and then subtract 20+1 from n value. Anybody |
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| 10436. |
An AP consist of 37 terms sum of 3 middle most is 225 , sum of last 3 terms is 429 .Find the AP ? |
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Answer» Type nhi kar hoga Hiii |
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| 10437. |
Which is the most important lesson in matha |
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Answer» Algebra is important... All All are important but most I donot know |
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| 10438. |
The smallest composite no. is 3? |
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Answer» All of u are stupid the smallest composite no. Is 3 this question in important question in 1 mark in this app so that explain why 3 is smallest comp. No. Oh sorry its 4 Stupids 2 No it\'s 4 |
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| 10439. |
Gud papers I need for my preparation and important questions also |
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| 10440. |
Hey guys whatsup |
| Answer» Nothing | |
| 10441. |
Happy Saturday |
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Answer» Same to you Same 2 u Same to you |
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| 10442. |
HYA gys ??? |
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Answer» And u Ghaziabad , up Jharkhand mai bhi mast yrr kha se ho? Badiya aur aap Mast kse ho sab? Kya Hello ji |
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| 10443. |
MY maths is weak, how can I cure it for board exam |
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Answer» study the solved questions in textbook M also weak in maths but interesting h U can also solve important questions from this aap No it can\'t be done by heart.....can be done by using mind and pen Never do ncert . Do rd sharma Do Ncert by heart. Now there is very less time only u should study some chapters from which max marks que..is going to come .... |
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| 10444. |
POInts p(4, 1), q(6, 5),r( 2, 7) lie on circle what is the distance of chords pq, qr, |
| Answer» pq&qr are in the same distance that is 2√5 | |
| 10445. |
Please solve the quadratic equation 4u square + 8u square |
| Answer» 4u2\xa0+ 8u = 04u(u + 2) = 0u = 0 or u = -2 | |
| 10446. |
(1+tan^2A)cotA/cosec^2A=tanA |
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| 10447. |
Formula of wd |
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Answer» work done n???wd=charge×p.d wd what |
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| 10448. |
Bhaii lakshya name to itna badhiyaa to fame bhi banao na ....ye kya abuse words use kar RHA h |
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Answer» Yeah you all are right!!!!!!!! Yes Himanshu u r right Apna aur apne khandaan kaa Kyun name badnaam kr RHA h |
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| 10449. |
If the LCM of p and 18 is 36 of p and 10 is 2, then find the value of p |
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| 10450. |
5+25/5-5=? |
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Answer» O 5 5 5 30 Not defined |
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