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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.
| 6601. |
95^2 |
| Answer» 9025 | |
| 6602. |
in the figure, |
| Answer» Answer is | |
| 6603. |
Change trapizium to triangle with same area |
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Answer» But the area has changed try another way the question is with same area TrapeziumA trapezium has one pair of sides parallel while the other isn’t. A trapezium is basically a triangle with the top sliced off. The parallel sides of this quadrilateral are called the base and to calculate the height you need to draw a perpendicular from one parallel side to other.The formula for area of a trapezium is,Area of Trapezium= [(a+b)h]/2 |
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| 6604. |
find the zeros of the polynomialx^2+7*x+10 |
| Answer» | |
| 6605. |
12 + 7 |
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Answer» 19 12 +7 =19 |
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| 6606. |
4x square - 3x plus 7 |
| Answer» x+7 | |
| 6607. |
Evaluate without multiplying directly 95×96 |
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Answer» Use Identity 95 × 96= (95.5-0.5)(95+0.5)= (95.5)2- (0.5)2= 9120.25 - 0.25= 9120 |
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| 6608. |
6√3+5√12 |
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Answer» 6√3+5√12=6√3+5√4×3=6√3+10√3=(6+10)√3=16√3The answer is 16√3.I think this may help you..... 16√3 6√3+5√12=\xa06√3+5√4× 3=6√3 + 10√3= (6 + 10) √3= 16\xa0√3 |
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| 6609. |
ABC is a right angled triangle in which angle A =90°and AB=AC.find angle B and angle C |
| Answer» ∵ In ∆ABC,AB = AC∴ ∠B = ∠C ...(1)| Angles opposite to equal sides of a triangle are equalIn ∆ABC,∠A + ∠B + ∠C = 180°| Sum of all the angles of a triangle is 180°⇒ 90° + ∠B + ∠C = 180°| ∵ ∠A = 90° (given)⇒ ∠B + ∠C = 90° ...(2)From (1) and (2), we get∠B = ∠C = 45°. | |
| 6610. |
Factorisex^3+13x^2+32x+20 |
| Answer» Let p(x) = x3\xa0+ 13x2\xa0+ 32x + 20p(-1) = -1 + 13 - 32 + 20 = -33 + 33 = 0Therefore (x + 1) is a factor of p(x).On dividing p(x) by (x + 1) we getp(x)\xa0\xa0(x + 1) = x2\xa0+ 12x + 20Thus,x3\xa0+ 13x2\xa0+ 32x + 20 = (x + 1)(x2\xa0+ 12x + 20)= (x + 1) (x2\xa0+ 10x + 2x + 20)= (x + 1)[x(x + 10) + 2(x + 10)]= (x + 1) (x +2) (x + 10)Hence, x3\xa0+ 13x2\xa0+ 32x + 20 = (x + 1) (x +2) (x + 10). | |
| 6611. |
Factories x(x-y) + 3xsquare y (x-y) |
| Answer» | |
| 6612. |
Root 7 into root 21 |
| Answer» √ 7 × √ 21√ 7 × 21√ 7 × 7 ×3= 7√ 3 | |
| 6613. |
Check weather √2 , 4√2 is a solution of the equation X - 2y = 4 |
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Answer» So,\xa0√2 , 4√2 is a not a solution of the equation x - 2y = 4 x - 2y = 4Put x = √2 and y= 4√2LHS = √2 - 2 (4 √2)= √2 - 8 √2= (1-8) √2= -7 √2≠ 4≠ RHS\xa0 |
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| 6614. |
The perimeter of an equilateral triangle is (p+1)CM. Find the length of it\'s altitude. |
| Answer» Firstly we know thatperimeter of equilateral triangle= 3ap+1= 3aa=p+1÷3height of equilateral triangle=√3a÷2= √3×p+1÷3÷2=p+1÷2√3 | |
| 6615. |
[1/4 a - 1/2 b + 1]^2 Expand using identitise |
| Answer» | |
| 6616. |
Expand using identities (x+2y+4z)^2 |
| Answer» (x+2y)+4z)2== (x+2y)2+z2+2(x+2y)z= x2+4y2+4xy+z2+(2x+4y)z= x2+4y2+z2+4xy+2xz+4yz | |
| 6617. |
What is new syllabus for 9th class |
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Answer» CBSE board ch1,2,12 You can check it from Google |
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| 6618. |
Is zero a rational number can you write in the form of p/q |
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Answer» No Yes Yes 0 is a rational number and can be written in the form of p|q Yes zero is a rational numberO/1 , 0/2. ,0/3, 0/40 =0 |
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| 6619. |
Formula of chapter 4 linear equations in two variables |
| Answer» ax + by = 0 | |
| 6620. |
20×20+2a×50=0 find the value of a |
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Answer» -4 -4 -4 g |
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| 6621. |
Multiply 6√5 by 2√5 |
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Answer» Multiply 6√5 by 2√5= 6×√(5)×2×√(5)= 6×2×√(5)×√(5)= 12×5= 60 Thanks but I know early the solution is correct but 6√5x2√5=6x2x√5x√5=12x5=60 12 /5 |
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| 6622. |
If p=3 and q=5, then find th 9value of (1/q + 1/p ) |
| Answer» Gzyiskhzka,bnx | |
| 6623. |
How to rationalize the denominator, with example |
| Answer» | |
| 6624. |
How to locate root 9.3 on number line |
| Answer» First you have to make a line and then mark 9on it then make another line and that line contain no. Like 9.1 9.2etc then mark 9.3 | |
| 6625. |
Exercise 2.1 solutions |
| Answer» | |
| 6626. |
(√x)^-2/3*√y^4÷√xy^-1/2 |
| Answer» (√x^-5/3) × (√y^5) | |
| 6627. |
60√1/6+3√54-12√+1/24 |
| Answer» Get answer | |
| 6628. |
√m^2n^2*6√m^2n^*3√m^2n^2 |
| Answer» Step-by-step explanation:\xa0\xa0Given expression is\xa0\xa0\xa0 | |
| 6629. |
How we can solve the root problems? |
| Answer» | |
| 6630. |
What is the value of root? |
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Answer» Let the no be xTherefore value of root will be x^1/2 Value of root 5 could be evaluated, by long division method, as we know 5 is not a perfect square. Basically, the square root or root of a number “n” is a number that gives the number “n” when multiplied by itself. For example, the value of root 9 is 3 as, 3 x 3 = 9, because 9 is the perfect square.When we multiply any number to itself, we get the square of that number. Evaluation or calculation of the square root of the perfect square number is easier than the non-perfect square numbers.\xa0Examples of perfect square:-4 = square of a number 2 = 2 × 2 = 2236 = square of a number 6 = 6 × 6 = 6249 = square of a number 7 = 7 × 7 = 72121 = square of a number 11 = 11 × 11 = 112 |
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| 6631. |
3÷56 |
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Answer» 3÷56=0.0535714286 3÷56=0.0535714..... 56÷3 = 18.66... |
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| 6632. |
3√18 is equal to |
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Answer» Root 162 Root 162 Root 162 Root 162 |
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| 6633. |
8 quadrilaterals example number one show that each angle of rectangle is a right angle |
| Answer» | |
| 6634. |
2.D q-15 |
| Answer» | |
| 6635. |
Chapter 6 exercise 6.3 questions 1 |
| Answer» Angle PRQ is 65° because PQT is a exterior angle of angle p and angle R . On one line is about 180° so angle QPR is 45° . Now 110-45°=65°. Ok | |
| 6636. |
If x + 2 = 9 ,what will be the value of x |
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Answer» 7 7 7 Its 7 7 |
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| 6637. |
Under root3 - 1 ÷ under root3 + 1 = a - b under root3 |
| Answer» The value of a is 2 and the value of b is 1 | |
| 6638. |
a+b ka whole sq |
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Answer» [ a + b ] = a² + 2ab + b² HOPE IT HELPS YOU (a + b)2 = a2 + 2ab + b2 |
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| 6639. |
Rationalise the denominator √3+√2/√3-√2 |
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Answer» 1 1 P/q 0 ? 450 +250 |
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| 6640. |
give the geometrical representation of 2x- 6 =0 as an equation in one variable |
| Answer» Give the geometric representations of 2x + 9 = 0 as an equation(1) in one variable(2) in two variablesanswer :(1) In one variable, 2x + 9 = 0 represents a point x = -9/2 = -4.5(2) In two variables, 2x + 9 = 0 represents a straight line passing through point (−4.5, 0) and parallel to y-axis. It is a collection of all points of the plane, having their x-coordinate as 4.5. | |
| 6641. |
I want rd sharma solutions of class 9th |
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Answer» U may open this link⬇https://rdsharmasolution.com/rd-sharma-class-9-solutions/ Yes send on this 9336511490 |
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| 6642. |
Simplify by rationalising the denominator 10/5 sq root -3 sq root 5 with method |
| Answer» For rationalising the denominator of any number 1/√a-b , we multiply it by √a+b/√a+b.=10/√5-3× √5+3/√5+3=10×√5+3/5+(3)²=10√5+3/14 | |
| 6643. |
Simplify (32/343)^-4/5 |
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Answer» 81√16 Consider, [32/243]-4/5 |
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| 6644. |
Find value of X:-(25/64)^8 ×(2/5)^7=(2/5)^2x+9 |
| Answer» | |
| 6645. |
Rational numbers between 2/7 and 1/3 |
| Answer» There are Infinite rational numbers between two rational no.s.... | |
| 6646. |
a+b+c=9 and ab+bc+ca=23then a3+b3+c3-3abc= |
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Answer» It is given that, 1. a+b+c=9 2.ab+bc+ca=23 Do the square of equation( 1) we get.(a+b+c)^2 = 9^2.a^2+b^2+c^2 +2(ab+bc+ca)=81.a^2+b^2+c^2+ 2(23)=81a^2+b^2+c^2+46 =81 3. a^2+b+c=81_46=35Now, a^3+b^3+c^3_ 3abc= (a+b+c)[a^2+b^2+c^2_ (ab+bc+ ca)]=9[35_ 23]=9[12]=108Hope it helps you. I think the correct answer is 108.hope it help you |
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| 6647. |
x=-5 can be written as 1.x+0.y+5=0. How ? |
| Answer» Put the value of x in the equation.Then 1(-5)+0y+5= (-5)+0y+5=0+0y=0.No matter what is value of y because when multiplied by0 answer will be 0 | |
| 6648. |
What is the meaning of sigma (symbol)? How can we use this symbol ? Give an example |
| Answer» The symbol Σ (sigma) is generally used to denote a sum of multiple terms. This symbol is generally accompanied by an index that varies to encompass all terms that must be considered in the sum. | |
| 6649. |
7o4s7p5d8 |
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Answer» What does this question means??? It\'s really very bad PLS DON\'T POST SUCH QUESTIONS...... |
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| 6650. |
If x=1+(5^1/3)+(5^2/3) ,then find the value of: x^3 - 3x^2 - 12x + 6 |
| Answer» x=1+(5^1/3)+(5^2/3) x=1+(5/3)+(25/3)(Add by taking lcm) x=(3+5+25)/3x=33/3 = 11Finding value of: x^3 - 3x^2 - 12x + 6Put the value of x i.e. 11: =x^3-3x^2-12x+6=(11)^3 - 3 (11)^2 - 12X11 + 6=1331 - 3X121 - 132 + 6=1331 - 363 - 132 + 6=842 | |