InterviewSolution
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InterviewSolution
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.
| 4151. |
What is the meaning of ^ this symbol. |
| Answer» This symbol ^ means power | |
| 4152. |
Factorise 8a^3 +√ 27b^3 |
| Answer» a3 + b3 = (a + b) (a2 - ab + b2 )8a3 + √27b3 = (2a)2 + (√3b)3= (2a + √3b) [(2a)2 - (2a) (√3b) + (√3b)2]= (2a + √3b) (4a2 - 2√3ab + 3b2) | |
| 4153. |
Find the value of (64)^(1÷2)×(125)^(1÷3) |
| Answer» 40 | |
| 4154. |
Score of india Austrila |
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Answer» It is only for studies and to help students in their studies ?????? Please do not post personal information |
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| 4155. |
What are adjacent angles. |
| Answer» Two rays meet at a single point and form an adjacent angle | |
| 4156. |
Medians of class 10th questions |
| Answer» | |
| 4157. |
Prove that (a+b+c) - a^3 - b^3 - c^3 = 3 (a+b) (b+c) (c+a) |
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| 4158. |
If x=7+4root 3 find the value of root x+1/rootx |
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| 4159. |
Write the following in decimal form and say what kind of decimal expension each has 1.36_100 |
| Answer» | |
| 4160. |
Define. Median of a triangle |
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Answer» Medium of a triangle means it divide the triangle in two equal parts In geometry, a median of a triangle is a line segment joining a vertex to the midpoint of the opposing side, bisecting it. Every triangle has exactly three medians, one from each vertex, and they all intersect each other at the triangle\'s centroid |
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| 4161. |
Decimal expansion of 58÷100 |
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Answer» 0.58 O.58 |
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| 4162. |
x-y/5-10=0 |
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Answer» 50 Given x-y/5 - 10 = 0x-y/5 = 10x-y = 10×5x - y = 50 |
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| 4163. |
(A+b)^3 |
| Answer» A^3+B^3+3A^2B+3AB^2 | |
| 4164. |
Find mean mode median 3,9,7,5,6,3,7,6,7,4,7,7,4,8,2 |
| Answer» Mode 7 | |
| 4165. |
How to solve the therom 10.8 |
| Answer» Go through the explaination once given on book....it\'s quite easy to understand...only exterior angle property and isosceles triangle property is applied.. | |
| 4166. |
Find three different solutions of the each of the following equations:A. 3x+4y=7 |
| Answer» (x, y) = (1,1)(x , y) = (1, -2)(x , y) = (9,- 5)\xa0\xa0\xa0 | |
| 4167. |
Important question of ch 13 |
| Answer» paper no 7 | |
| 4168. |
If the radius of the cylinder is halved, then what is the change in its volume ? |
| Answer» Since radius and volume are directly related to each other so volume will be reduced to 1/4 | |
| 4169. |
If x=√a+2b +√a-2b ÷√a+2b -√a-2b ,then show that bx^2 -ax +b=0 |
| Answer» | |
| 4170. |
Find the volume of a sphere whose radius is (a).7cm. (b).0.63m |
| Answer» i) Radius of the sphere(r) = 7 cmVolume of the sphere = 4/3πr³= (4/3 × 22/7 × 7 × 7 × 7)= (88×7×49)/3×7=4312/3= 1437 ⅓Volume of the sphere =1437 ⅓ cm³(ii) Given: Radius of the sphere(r) = 0.63 mVolume of the sphere = 4/3πr³= (4/3 × 22/7 × 0.63 × 0.63 × 0.63)= 4×22×.09×.21× 0.63= 1.0478 m³Volume of the sphere =1.0478 m³ | |
| 4171. |
THE DIAMETERof metallic ball is 21cm.What is the mass ,if the density is 5gm per cm cube |
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Answer» Diameter of sphere = 21 cm R= 10.5 cmVol. of sphere = 4/3πr³=(4/3*22/7*10.5*10.5*10.5)cm³=(88/3*1.5*10.5*10.5)cm³=(14553/3)cm³=4851cm³Density= mass/volumeTherefore; mass= density * volume = 5gm/cm³*4851cm³ = 24255gm Ans Consult NCERT class 9 book chapter surface area and volume for better understanding |
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| 4172. |
0.0154÷22 |
| Answer» 0.0154 ÷ 22= 0.0007 | |
| 4173. |
How to make 45° |
| Answer» First of all make an angle of 90 then bisect it | |
| 4174. |
Subcribe ------. GAMING FREAKS |
| Answer» | |
| 4175. |
Construct a triangle ABC in which BC=7cm,AngleB= 75 and AB +AC=13cm |
| Answer» First draw a line BC of 7cm draw an angle of 75 at B point then make an arc of 13cm then draw line AB join point C to A Now measure the angle which make between AB and AC in your compass and from this arc make angle at C then join it | |
| 4176. |
What is real number? |
| Answer» Numbers like positive,negative,rational,irrational are called real numbers. | |
| 4177. |
Tribhuj ke bhari kodo ka yog 360° hotA h proved that |
| Answer» | |
| 4178. |
Wha is real number |
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Answer» All numbes like positive,negative,rational,irrational are called real number. Real number is 123345678910 |
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| 4179. |
x ki power agar zero hoti hh to 1 hota hh agar zero ki power zero ho to kya hoga |
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Answer» Infinite 1 X ( x= any no.)^1 means no number. Thus x^1 =1. It would be 0. Consider a paper. Fold it once.You get two parts of it. Fold it agin half (2^2) you get 4 parts. Again half (2^3) you get 8 parts of it. Hope you got the pattern. 0 indicates that there is no paper!!! Fir v 1 hi hoga 1 |
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| 4180. |
if p= 2-a that prove that a power 3+6ap+p power 3-8 |
| Answer» | |
| 4181. |
Factorize: 8y-. 125x |
| Answer» Use identity (a-b)cube | |
| 4182. |
How many solitions does a pinear equation in 2 variables have? |
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Answer» Upto 2 equations Infinite |
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| 4183. |
4x+2y=40 |
| Answer» 4x=40-2y (equation)For y=0 For y =10 For y=20 4x= 40 - 2(0) 4x=40-2(10) 4x=40-2(20)X=40-0/4 b x=40-20/4. X=40-40/4X=40/4 x=20/4. X=0/4X=10 x=5. X=0 ~°Table value°~X | 10 | 5 | 0 |Y | 0 | 10 | 20 | Now you can plot the points on the graph if you have to.......✓•✓ | |
| 4184. |
If x=2/3 and x= -3 are the roots of quadratic equation ax+7x+b=O.find the value of a and b. |
| Answer» {tex}ax^2+7x+b=0{/tex}let the roots are p and qp+q=-7/a=2/3+(-3)=2/3 - 9/3= -7/3or -7/a= -7/3hence -7a=-21 so a= 3also{tex}\\begin{array}{l}pq=\\frac ba=\\frac23\\times(-3)=-2\\\\but\\;a=\\;3\\\\so\\;\\;\\frac b3=-2\\\\so\\;b=3\\times-2=-6\\;and\\;a=3\\end{array}{/tex}\xa0 | |
| 4185. |
Constuct a right angled triangle ABC in which hypotenuse AC=6cm and side BC=5cm |
| Answer» i think it can be solved by Pythagoras theroem.. | |
| 4186. |
How we can understand theorem easily? |
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Answer» Thank you so much ?? Clear the the followings from your teacher1.Triangle,pythagoras theorem,conguerence of triangles2.Parallel lines3.Types of quadrilaterals like rectangle,square etc.4. linear equationsIf you understand the above topics then I believe you can under stand theorems. |
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| 4187. |
Paramuter of a sqaure |
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Answer» 4 x side ??????? 4side |
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| 4188. |
All mathematics formula |
| Answer» All maths formula written in testbook | |
| 4189. |
Without actually calculating the cubes,find the value of 48 cube - 30 cube - 18 cube |
| Answer» as a+b+c=0Means 48+(-30)+(-18)=0 48-48=00=0So,a³+b³+c³-3abc=(a+b+c)(a²+b²+c²-ab-bc-ca)a³+b³+c³-3abc=0(a²+b³+c³-ab-bc-ca)a³+b³+c³-3abc=0a³+b³+c³=3abc48³-30³-18³=3*48*-30*-18=77760So answer is 77760 | |
| 4190. |
Statastics. |
| Answer» | |
| 4191. |
111+22 |
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Answer» Answer is 133 133 |
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| 4192. |
What is Area of cube? |
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Answer» TSA 6a^2LSA 4a^2 6a² |
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| 4193. |
What are main question which must revise before exam |
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Answer» Prove that question mid point theorem |
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| 4194. |
a6-d6 |
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Answer» 0 {tex}\\begin{array}{l}a^6-d^6=(a^3)^2-(d^3{)^2\\;\\;\\;}=(a^3+d^3)(a^3-d^3)\\\\=(a+d)(a^2-ab+d^2)(a-d)(a^2+ab+d^2)\\\\=(a+d)(a-d)(a^2+ab+d^2))(a^2-ab+d^2\\\\\\end{array}{/tex} |
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| 4195. |
Find the value 1/27r^3-s^3+12st^2+5rst, when s=r/3+5t |
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| 4196. |
What is needed for making histogram |
| Answer» | |
| 4197. |
Factorize 4xcube+4xsquare-x-1 |
| Answer» 4x^3+4x^2-x-14x^2(x+1)-1(x+1)(x+1)(4x+1) | |
| 4198. |
What is answer of power of 0 is 0 |
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Answer» Answer is 1 1 ya 0 |
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| 4199. |
Show that (7+under root 7)(7-under root7) is a rational number |
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Answer» (7 + √7) (7 - √7)= (7)^2 - (√7)^2= 49 - 7= 2So, it is rational Rational |
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| 4200. |
{7√2 k`2-10k -4√2 } factorise |
| Answer» | |