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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.
| 2201. |
Verify (a+b+c)³ -a³-b³-c³ =3(a+b) (b+c) (c+a) |
| Answer» Prove that (a +b +c)3\xa0-a3\xa0-b3\xa0– c3\xa0=3(a +b)(b +c)(c +a). Solution to\xa0(a +b +c)3\xa0-a3\xa0-b3\xa0– c3\xa0=3(a +b)(b +c)(c +a) | |
| 2202. |
Perform the following divisions |
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| 2203. |
Chapter 9 exercise 9.2 question no. 1 |
| Answer» From which school and subject? | |
| 2204. |
X^5 - x factorise by identity |
| Answer» X5 - x= x ( x4 - 1)=x (x2 - 1) (x2 + 1)= x ( x - 1) ( x+ 1) (x2 + 1)\xa0 | |
| 2205. |
Write 100 integers |
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Answer» You can write anyone from - infinite to + infinite including 0 also. 1 to 100 simple ex You have to simply write no from 1-100 All the no.s from 1 to 100 are integers. Integers are no.s other than decimals, for eg., 5 is an integer, 5.1 is non-integer i.e., decimal. Integers are both positive and negative. |
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| 2206. |
The whole is - than the part |
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Answer» The whole is greater than the part Whole is always greater than the part. Because on adding parts we get whole. Greater Greater or equal to The whole is *greater* than the part. |
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| 2207. |
100 problem s on substitute |
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| 2208. |
100 problem s on addition |
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| 2209. |
The ares of a triangle two sides of which are 18cm and 10 cm and the perimeter is 42cm |
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Answer» 21under root 3 cm² 90cm Hence the side is 14 cm and the area is 90cn |
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| 2210. |
Select the incorrect description of accleration |
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| 2211. |
Write a rational number not lying between−⅕and −⅖ |
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Answer» ? Don\'t no |
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| 2212. |
What is the factor of 8 |
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Answer» This is for studying not for sending anything messages Oh! Hello I am in 4th class In which class do u read,!!????????? 2,4,8 1,2,4,8 |
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| 2213. |
Find area of triangle whose two sides are 18 cm and 10 cm .periemeter is 42 cm |
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Answer» Answer is 21 underroot 11 cm sq. I solve it with the herons formula and the answer is 11√21 cm^2 Given,Side a=18cmSide b=10cmPerimeter=42cm=a+b+c:. Putting value42=18+10+c42=28+c42-28=c14=cNow,S=(a+b+c)/2:. Putting valueS=42/2S=21Now according to Heron\'s formula-Area of a triangle=√{s(s-a)(s-b)(s-c)}:. Putting value=√{21(21-18)(21-10)(21-14)}=√{21(3)(11)(7)}=√4851=21√11cm² |
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| 2214. |
2x+(_3)+4 |
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Answer» 2x+(-3)+4=2x-3+4=2x+1x=-1/2= - 0.5 If it is a sign of (- )then the value X=-1/2 What is it written before three?? |
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| 2215. |
If ∠A–∠B = 33° , ∠B–∠C=18° of a ∆ABC, then ∠C is |
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| 2216. |
Five rational number between 2/3 and 5/3 |
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Answer» 10/15,11/15,12/15,13/15,14/15 Five rational numbers between 2/3 and 5/3 are 13/18,14/18,15/18,16/18,17/18 |
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| 2217. |
If X=1/2-√3, find the value of x2-4x+1 |
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| 2218. |
(3x-2)(2x³+3x²) |
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Answer» (13)21 3x(2x³+3x²) -2(2x³+3x²)(6x⁴+9x³) - (-4x³-6x²)6x⁴+9x³+4x³+6x²6x⁴+13x³+6x² |
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| 2219. |
What are the properties of a 1.trapezium 2.rhombus3.parallelogram4. Rectangle and square |
| Answer» Trapezium:\tLike other quadrilaterals, the sum of all the four angles of the trapezium is equal to 360°\tA trapezium has two parallel sides and two non-parallel sides\tThe diagonals of regular trapezium bisect each other\tThe length of the mid-segment is equal to half the sum of the parallel bases, in a trapezium\tTwo pairs of adjacent angles of a trapezium formed between the parallel sides and one of the non-parallel side, add up to 180 degrees.Rhombus:\tAll sides of the rhombus are equal.\tThe opposite sides of a rhombus are parallel.\tOpposite angles of a rhombus are equal.\tIn a rhombus, diagonals bisect each other at right angles.\tDiagonals bisect the angles of a rhombus.\xa0Parallelogram:\tThe opposite sides are congruent.\tThe opposite angles are congruent.\tThe consecutive angles are supplementary.\tIf anyone of the angles is a right angle, then all the other angles will be the right angle.\tThe two diagonals bisect each other.\tEach diagonal bisects the parallelogram into two congruent triangles. | |
| 2220. |
find four solutions of the equation 2x+3y-12=0 |
| Answer» (6,0),(0,4),(3,2), | |
| 2221. |
Ab parallel CD find angle poq angle Apo angle oqd |
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| 2222. |
The sides of the triangle are 3 cm, 5 cm and 6 cm . What is its area? |
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Answer» 7.48 cm^2 7.48 cm² 7.48cm² Any other help 7.48cm² |
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| 2223. |
Write down the cofficient of x3 2/3 x3+2x2+x3=1 |
| Answer» 2/3 and 1 | |
| 2224. |
89-45+147-458+52+326351739573542-647157 |
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| 2225. |
Factorise a^2+a+1/4-a-1/2 |
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| 2226. |
The area of an equilateral triangle is 4/√3cm2 find the side of an equilateral triangle |
| Answer» Given, side of an equilateral triangle is 4√3 cm.Area of an equilateral triangle = √3/4 (Side)2= √3/4 (4√3)2\xa0= (√3/4) x 16 x 3= 3√3 x 4 = 12 x 1.732 = 20.784 cm2Hence, the area of an equilateral triangle is 20.784 cm2. | |
| 2227. |
The CSA of a cylinder is 1210 cm sq. and its diameter is 20 cm. Find its height. |
| Answer» \xa0The curved surface area of a cylinder is 1210cm square and its diameter is 20 cm . Find its height and volume\xa0 | |
| 2228. |
Find the range of the data 5,6,12,13,15 |
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Answer» 5 to 15 is the range of given data =15-5=10 Range=highest observations-lowest observations https://youtu.be/pIj-JQcBb9I |
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| 2229. |
What is the function of diameter |
| Answer» The diameter measures the circle at its largest point across. Another\xa0definition\xa0that is related to the diameter is the radius. It is the measurement from the center of the circle to its edge.\xa0Diameter\xa0is defined as the length of a straight line through the center of a circle. An\xa0example of a diameter\xa0is the length of a line sliced down the center of a pie.\xa0There are two common abbreviations of\xa0diameter: dia. and diam. If you want to make either of these plural, simply add on an “s.” | |
| 2230. |
A rational number between √12 and √13 . |
| Answer» Infinite rational numbers | |
| 2231. |
200+([-5]+[-4]) |
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Answer» 200+([-5]+[-4])=200+(-5-4)=200+(-9)=200-9=191 ans 200+([-5]+[-4])= 200 - 5 - 4= 200 - 9= 191 |
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| 2232. |
Factorise x 3- 3 x 2- 9 x -5 |
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| 2233. |
Factorise-3x-4^2 |
| Answer» 12345 | |
| 2234. |
One eqilateral triangle of side 2cm. What is the area of this triangle by herons formula? |
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Answer» Sides of equilateral triangle=2cm,2cm,2cmIf a=2cm , b= 2cm and c=2 cmThen, s(semi perimeter)=(2+2+2)/2=6/2=3cm =sNow by, heron\'s Formula area of a triangle=√s(s-a)(s-b)(s-c)=√3(3-2)(3-2)(3-2)=√3(1)(1)(1)=√3 cm²Therefore area of equilateral triangle with sides 2cm each is √3cm². A n s w e r:By Herons formula,Area of equilateral triangle=√3a²/4Given,a= 2cmTherefore,Area of the triangle= (√3a²/4) cm²= (√3 × 2²/4) cm²= (4√3 /4) cm²= √3 cm² |
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| 2235. |
Root 10 multiply with root 15 |
| Answer» 22500 | |
| 2236. |
How to find number between two irrational numbers |
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Answer» This is just an example Let us convert 5/7 and 9/11 into decimal form, to get\xa05/7 = 0.714285... and 9/1 = 0.818181.... .Three irrational numbers that lie between 0.714285.... and 0.818181.... are:0.73073007300073….0.74074007400074….0.76076007600076…. Suppose we have two rational numbers a and b, then the irrational numbers between those two will be,\xa0√ab. Now let us find two irrational numbers between two given rational numbers.1. Find an irrational number between two rational numbers 2 –\xa0√3 and 5 –\xa0√3Let x be the irrational number between two rational numbers 2 –\xa0√3 and 5 –\xa0√3. Then we get,2 –\xa0√3\xa0< x\xa0< 5 –\xa0√3⇒\xa02 < x + < √3\xa0< 5We see that x + √3 is an irrational number between\xa02 –\xa0√3 and 5 –\xa0√3 where 2 –\xa0√3\xa0< x\xa0< 5 –\xa0√3.2. Find two irrational numbers between two given rational numbers.Now let us take any two numbers,\xa0say a and b. Let x be any number between a and b. Then,We have a\xa0< x\xa0< b….. let this be equation\xa0(1)Now, subtract\xa0√2 from both the sides of equation\xa0(1)So, a –\xa0√2\xa0< x\xa0< b –\xa0√2……equation (2)= a < x +\xa0√2 < bAddition of irrational number with any number results into an irrational number. So, x +\xa0√2 is an irrational number which exists\xa0between two rational numbers a and b. |
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| 2237. |
Write coefficient of x^2 in the polynomial 5x^2+6x+3 |
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Answer» 5 is cofficent In eqation 5x²+6x+3 coefficients is 5 5 is the coefficient of x² in the polynomial 5x²+6x+3 |
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| 2238. |
How?? to find three irrational no. Between 5/7 and 9/11. |
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Answer» Thanks a lot!!! ? Let us convert 5/7 and 9/11 into decimal form, to get\xa05/7 = 0.714285... and 9/1 = 0.818181.... .Three irrational numbers that lie between 0.714285.... and 0.818181.... are:0.73073007300073….0.74074007400074….0.76076007600076…. |
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| 2239. |
In the adjoining figure, AB=AC and Angle ACD=140 degree. Find angle A |
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| 2240. |
Natural no. Is whole no. Or not? ?????? |
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Answer» Thanku to all dear guys and girls. Yes Yes , because natural no. Starts from 1 and whole no. Starts by 0 so every natural number is a whole number. *natural Yess.....natural no. is whole no.......but whole no. is not a natutal no........✌ |
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| 2241. |
Factorise: x³(y-z)³+y³(z-x)³+z³(x-y)³.................please reply fast |
| Answer» (0) | |
| 2242. |
Five Rational number between 2 and 8 |
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Answer» 7/3, 5/2, 8/3, 9/3, 10/3 7/3, 5/2, 8/3, 9/3, 10/3 |
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| 2243. |
To construct an angle of 60 degree at the initial point of a given |
| Answer» Can you repeat the question,I cant understand it. | |
| 2244. |
Find the range of given data:36,56,17,44,26,47,58,67,40,22 |
| Answer» The\xa0Range\xa0is the difference between the lowest and highest values. Example: In {4, 6, 9, 3, 7} the lowest value is 3, and the highest is 9. So the\xa0range\xa0is 9 − 3 = 6. It is that simple!\xa0In the given sumHighest value = 67Lowest value = 17Range = Highest - Lowest value 67 - 17Therefore rANGE = 50 | |
| 2245. |
9 th class syllabus |
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Answer» Thanks ?????? HRD Minister Ramesh Nishank announced a major CBSE syllabus reduction for the new academic year 2020-21 on July 7 which was soon followed by an official notification by CBSE on the same.Considering the loss of classroom teaching time due to the Covid-19 pandemic and lockdown, CBSE reduced the syllabus of classes 9 to 12 with the help of suggestions from NCERT.Click on the given links:\tREVISED - Mathematics\tREVISED - Science\tREVISED - Social ScienceFor deleted topics :\tDeleted - Computer Application\tDeleted - English - Language and Literature\tDeleted - Hindi A\tDeleted - Hindi B\tDeleted - Home Science\tDeleted - Mathematics\tDeleted - Science\tDeleted - Social Science |
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| 2246. |
3x 2x 5x are the angle find the value of x |
| Answer» From angle Sum Property 3x+2x+5x=18010x=180x=180/10x=18 | |
| 2247. |
To find centroid of a acute angle triangle, obtuse angle triangle and right angle triangle... |
| Answer» Fjsiw | |
| 2248. |
5+10= |
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Answer» Apni insult krwany sy acha calculator pr calculate kr lety.....??????????? 15??? 15...?? 5+10=15 |
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| 2249. |
True or falseThe decimal expansion of 5/6is terminating |
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Answer» False F a l s eA n s w e r :5 / 6 = 0 . 8 3 3 3 3 3 3 3 3 .....so the decimal expansion is non-terminating and recurring.place a bar over 3. false, the decimal expansion is non terminating repeating |
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| 2250. |
By using identity find the value 401×401-399×399 |
| Answer» 401*401-399*399= 401^2-399^2= (401+399)(401- 399) according to identity= (800)(2)=1600 | |