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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.
| 16651. |
5+5+5=550 |
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Answer» Always 545+5=550 545 +5 = 550 |
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| 16652. |
( ) + ( ) + ( )=301,3,5,7,9,11,13,15Ucan alao repeat the numbers |
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Answer» 15+15(leave any one box blank) It is no a solution due to the given ans. Is even and the given digit be odd |
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| 16653. |
Find the quadratic equation of 2 x square - 4 x minus 9 |
| Answer» This equation is not quadratic eqn. And no numbers which v multiply than 9 cum and than v subtract it come -4 | |
| 16654. |
√2+2√2= |
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Answer» √2+2√22+√2+√22+24 3√2 2√3 |
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| 16655. |
A series has An =n×n +1is this AP or not |
| Answer» an = n2 - 1Put n = 1, 2, 3, 4, ..... we get,a1 = 12 - 1 = 1 - 1 = 0a2 = 22 - 1 = 4\xa0- 1 = 3a3 = 32 - 1 = 9 - 1 = 8a4 = 42 - 1 = 16 - 1 = 15, and so on.Hence, the given sequence is 0, 3, 8, 15a2 - a1 = 3 - 0 = 3a3 - a2 = 8 - 3 = 5As a2 - a1\xa0{tex} \\ne {/tex}\xa0a3 - a2, the given sequence is not an AP. | |
| 16656. |
2,7,12,...10પદ સુધી |
| Answer» | |
| 16657. |
if 112=q×6+r then the possible values of r is what? |
| Answer» 0, 1, 2, 3, 4, 5 | |
| 16658. |
I am not able to understand ch-7 |
| Answer» | |
| 16659. |
Solution of chapter 4 |
| Answer» You can check NCERT Solutions here :\xa0https://mycbseguide.com/ncert-solutions.html | |
| 16660. |
Write the polynomials whose zeroes are 2+root3 and 2-root3 |
| Answer» Let alpha = 2 + root3 Beta = 2 - root 3So alpha + beta = 4 Alpha × beta = 1 Ouadratic polynomial = K [ x^2 -(alpha + beta)x + alpha × beta] = K [ x^2 - 4x + 1] Let K = 1So , quadratic polynomial = x^2 - 4x +1 | |
| 16661. |
3x+5y=13 and 7x-2y=3 solve this by substitution method |
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| 16662. |
Which one reference book? is best---RD Sharma or RS Agarwal for maths???? |
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Answer» ... . Thnks* Thnkx to all? Rd sharma RD sharma Rd sharma Rs aggrawal RD Sharma Hlo hlo .....is anyone here????...... |
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| 16663. |
√3x²-8x+4√3 quadratic equations |
| Answer» | |
| 16664. |
Alpha + beta + gama ko kasa yad rakha |
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| 16665. |
9x 9x -15x+6=0 |
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| 16666. |
7th chapter 7.1 in (1,5 ) (2,3) (2,11) |
| Answer» Class 10 first flight chapter Nelson Mandela ncrt answer and ouestion | |
| 16667. |
Which is the smallest even number |
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Answer» 2 2 2 |
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| 16668. |
if an=5n+2 then find a12 |
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Answer» 62 If a n equal to 50 and + 2 then a 12 equal to 5 into 12 + 2 is equal to 62 |
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| 16669. |
Find the greatest number of6 digit exactly divisible 24;15;&36 |
| Answer» 999720 | |
| 16670. |
Chapter 3 math |
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Answer» ..... 3 chapter is very easy bro...... you duffer it is very easy |
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| 16671. |
8x + 5y = 93x + 2y = 4 |
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Answer» 8x +5y =9 …(1)3x +2y =4 …(2)8x +5y =9Subtract 8x both sides we get5y = 9 – 8xDivide by 5Y = (9 – 8 x)/5 …(3)Plug this value of y in equation second we get3x +2y =43x + 2(9 – 8 x)/5) = 4Multiply by 5 we get15 x + 18 - 16 x = 20-x = 2x = - 2Plug this value back in equation (3) we gety = (9- 8(-2))/5y = 25/5y = 5 X=-2; y=5 By substitution method X = -2 |
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| 16672. |
2x+3y=773x+2y=45solve by cross multiplication method |
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| 16673. |
Which method is easier 1. Substitution 2. Elimination3. Cross multiplication |
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Answer» Elimination method is only one of the easy method to solve questions. Substitution Elimination and substitution both are easy but it depends on which type of question is asked. |
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| 16674. |
What is the sum of the n terms of natural number |
| Answer» 2 and 5 | |
| 16675. |
Show that the point (1,7) (4,2)( -1-1) (-4,4) are the vertices of square |
| Answer» 7 | |
| 16676. |
If sum of square of two consecutive odd number is 1254 find the other number |
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| 16677. |
Find the roots of the equation: root x+y=7x + root y=11 |
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| 16678. |
3x+45b |
| Answer» 3(x+15b) | |
| 16679. |
a3-b3= |
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Answer» (a a³ – b³ = (a – b)(a² + ab + b²)you know that(a – b)³ = a³ + 3ab(a – b) – b³then a³ – b³ = (a – b)³ + 3ab(a – b)= (a – b)[(a – b)² + 3ab]= (a – b)(a² – 2ab + b² + 3ab)= (a – b)(a² + ab + b² ) 3(a-b) (a-b)3 - 3ab(a-b) |
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| 16680. |
2x+5x+3y |
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Answer» 2x+5x+3y = 7x+ 3y 7x+3y |
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| 16681. |
Divisibility test of 13 |
| Answer» divisibility test of 13 is the number in the 13 table is the divisibility test of 13 | |
| 16682. |
Prove that root p is irrational |
| Answer» irrational | |
| 16683. |
If the point (p,q)(m,n) ( p-m,q-n) are collinear show pn=qm. |
| Answer» Given points are collinear. Therefore[p {tex}\\times{/tex}\xa0n + m(q - n) + (p - m) q] - [m {tex}\\times{/tex}\xa0q + (p - m) n + p (q - n)] = 0{tex}\\Rightarrow{/tex}\xa0(pn + qm - mn + pq - mq) - (mq + pn - mn + pq - pn) = 0{tex}\\Rightarrow{/tex}\xa0(pn + p q - mn) - (mq - mn + pq) = 0{tex}\\Rightarrow{/tex}\xa0pn - mq = 0{tex}\\Rightarrow{/tex}\xa0pn = qm | |
| 16684. |
I want to know about geometric construction |
| Answer» This is not time of geometric constructionIts is time of Ap real no polynomial | |
| 16685. |
5005 as a prime factor |
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Answer» 5×7×11×13 5×7×11×13 5×7×11×13 5 . 7. 11. 13 |
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| 16686. |
activity to find the hcf of two numbers experimentally based on euclid division lemma |
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Answer» Then do it by long divison method then we can find the hcf Firstly take the biggest no. As a dividend and the smallest no. As a divisor then divide simply |
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| 16687. |
Prove that root2-root3 is irrational number |
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Answer» Phle root2 ko irrational prove kro uske bad root 3 ko irrational prove kro use bad hm dekh skte h ki dono irrational prove ho gye use bad hm write krege irrational +irrational =irrational fr ik irrational k nitche root2 write krege +dsre irratinal k nitche root 3 write krege =irrational then we see that both prove irrational By contradiction method |
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| 16688. |
The LCM of two numbers is 14 times of their HCF. The m of HCF and LCM |
| Answer» 80 and 40 | |
| 16689. |
The pair of equations x=0 and y=-7 has whose solution |
| Answer» | |
| 16690. |
Solve for x 1 1 2__________ + __________ = ------(X-1)(X-2) (X-2)(X-3) 3 |
| Answer» 65 | |
| 16691. |
If x=2/3 and x=-3 are roots of the quadratic equation ax^2+7x+b=0Find the valuae of a and b |
| Answer» {tex}\\because{/tex}\xa0x =\xa0{tex}\\frac{2}{3}{/tex}\xa0is a root of {tex}ax^2 + 7x + b = 0{/tex}{tex}\\therefore{/tex}\xa0a({tex}\\frac{2}{3}{/tex})2 + 7{tex}\\times{/tex}{tex}\\frac{2}{3}{/tex}\xa0+ b = 0{tex}\\Rightarrow{/tex}{tex}\\frac{4a + 42 + 9b}{9}{/tex}\xa0= 0\xa0{tex}\\Rightarrow{/tex}\xa0{tex}4a + 9b + 42 = 0{/tex} ...(i)Also x = 3 is a root{tex}\\therefore{/tex}\xa0{tex}a(3)^2 + 7\\times3 + b = 0{/tex}{tex}\\Rightarrow{/tex}{tex}9a + b + 21 = 0{/tex}{tex}\\Rightarrow{/tex}{tex}9(9a + b + 21) = 9\\times0{/tex}{tex}\\Rightarrow{/tex}{tex}81a + 9b + 189 = 0 {/tex}...(ii)(ii) and (i), we get{tex}\\Rightarrow{/tex}\xa077a = -147\xa0{tex}\\Rightarrow{/tex}\xa0a =\xa0{tex}\\frac{-147}{77}{/tex}\xa0=\xa0{tex}\\frac{-21}{11}{/tex}When a =\xa0{tex}\\frac{-21}{11}{/tex}, eq.(i) becomes-4{tex}\\times{/tex}{tex}\\frac{21}{11}{/tex}\xa0+ 9b + 42 = 0{tex}\\Rightarrow{/tex}{tex}\\frac { - 84 + 99 b + 462 } { 11 }{/tex}\xa0= 0{tex}\\Rightarrow{/tex}99b + 378 = 0 b =\xa0{tex}\\frac{-378}{99}{/tex}\xa0=\xa0{tex}\\frac{-42}{11}{/tex}{tex}\\therefore{/tex}\xa0a =\xa0{tex}\\frac{-21}{11}{/tex}, b =\xa0{tex}\\frac{-42}{11}{/tex}. | |
| 16692. |
What is euclid’s lemma |
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Answer» For any positive integers a and b where A greater than B than there exist Q and R such that a = bq +r a =bq + r |
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| 16693. |
What is the value of Rute 2 |
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Answer» 1.414 (approx.) 1.414 |
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| 16694. |
Find the sum of all odd integers between 2 and 100 |
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Answer» 3,9,15,..........99 2401 |
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| 16695. |
Find the value of x and y in the equation 1by x - 1 by y =23 |
| Answer» 10 की gaide | |
| 16696. |
Why do sky appears blue |
| Answer» The sky appear blue because the white light of the sun which when enters through our Atmostphere,then blue light cannot pass it due to its low wavelength and gets spread over the atmosphere. | |
| 16697. |
7x+1 5x-3_____ + ______5x-3 7x+1 |
| Answer» Please write the question correctly | |
| 16698. |
Completing squares |
| Answer» | |
| 16699. |
X-54+5 |
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Answer» X-49 YOUR QUESTION IS NOT COMPLETE? x-54+5=0=> x=54-5=>x=14Hope ii will help u |
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| 16700. |
Is 18 is hcf of any number |
| Answer» | |