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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.
| 4351. |
A cuboid having surface areas of 3 adjacent faces a,band c has volule? |
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Answer» Volume=(abc)^1/2 In the given solution replace x.y.z with a,b,cLet the length, breath and height of the cuboid be\xa0l\xa0units,\xa0b\xa0units and\xa0h\xa0units respectively.Given, area of three adjacent faces of the cuboid are\xa0x,\xa0y\xa0and\xa0z\xa0square units.Area of the face ABEF =\xa0l\xa0×\xa0b\xa0=\xa0x ...(1)Area of the face ABCD =\xa0l\xa0×\xa0h\xa0=\xa0y ...(2)Area of the face ADGF =\xa0b\xa0×\xa0h\xa0=\xa0z ...(3)Multiplying (1), (2) and (3), we get(l\xa0×\xa0b) × (l\xa0×\xa0h) × (b\xa0×\xa0h) =\xa0x\xa0×\xa0y\xa0×\xa0z∴\xa0l2\xa0b2\xa0h2\xa0=\xa0x y z ...(4)Volume of the cuboid =\xa0l\xa0×\xa0b\xa0×\xa0h∴\xa0V\xa0=\xa0l b hSquaring on both sides, we getV\xa02\xa0=\xa0l2\xa0b2\xa0h2∴\xa0V\xa02\xa0=\xa0xyz \xa0[Using (4)] |
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| 4352. |
Formula for success |
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Answer» Formula of success = (S*U*C^2*E*S^2) FOR SURE!!!!!! A singel goal for a whole life and a whole life for just a singel goal Focus at 1 point. Studying studying studying |
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| 4353. |
What is the equation in which the line passes through the origin |
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Answer» X+y=0 X+y=0 |
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| 4354. |
Can anybody tell me, what is trigonometry |
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Answer» Branch of Maths♒ Its what i really dont at all know its astupid mad chapter whuch makes u pluck ur hair\u200c\u200c\u200c\u200c\u200c\u200c\u200c\u200c\u200c\u200c\u200c\u200c\u200c\u200c\u200c\u200c??????O:-) O:-) O:-) Ya he is right it\'s a math chapter of class 10 May be it is a math chapter of class 10th.. |
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| 4355. |
Hey!! Can you guys help me with this question Write (3a +4b - 5c)^3 |
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Answer» Use ((a+b)+c))^3 Its a sum to be done using the mathematical formula (a-b)^3 where a is 3a+4b and b is -5c |
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| 4356. |
2a=9 find value of a |
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Answer» a=4.5 9/2 is the correct answer a=9/2=4.5 |
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| 4357. |
5a + 2b =92a +3b =8 Find a and b |
| Answer» a=1 b=2 | |
| 4358. |
Simplify 454 multiply 441 - 454 ×21/(877)2 -(423)2 |
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| 4359. |
Factorise a^6 -512b^6 |
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| 4360. |
If all the three angles of a triangle are in the ratio 2x:3x:4x then find the value of each angle |
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Answer» 2x+3x+4x=180 (angle sum property)9x=180x=180/9 =20Angle 1= 2x= 2×20=40Angle 2= 3x= 3×20=60Angle 3= 4x= 4×20=80 2x+3x+4x=180. Angle sum prop9x=180x=180/9=202x=403x =604x = 80 |
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| 4361. |
Find the value of p for which polynomials (x*x*x +4x*x -px-18) is completely divisible by (x-2) |
| Answer» P=3 | |
| 4362. |
Give the geometric representation of 5y+3=0 in one variable and in two variables |
| Answer» In one variable5y+3=0 is5y=-3Y=-3/5 Y=-0.6 0.6 ---| 0 | -1 | -2 | -3 | -4 | |
| 4363. |
Factorise 84-2x-x^2 |
| Answer» {tex}\\style{font-size:10px}{\\begin{array}{l}84-2x-2x^2\\\\=-2(x^2+x-42)\\\\=-2(x^2+7x-6x-42)\\\\=-2\\{x(x+7)-6(x+7)\\}\\\\=-2(x+7)(x-6)\\end{array}}{/tex} | |
| 4364. |
The men age of 3 students is 28 years. If ratio of their ages is 2:3:2. Find thier respected ages. |
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Answer» Thanks Let their ages be 2x, 3x, 2xtherefore sum of their ages = 2x + 3x + 2x = 7x = 28 * 3 = 847x = 84x = 12therefore 2x = 24, 3x = 36therefore the ages are 24 yrs, 36 yrs, 24 yrs |
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| 4365. |
What is a parallelo |
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Answer» If opposite side of the quadrilateral are parallel and equal then it is parallelogram The opposite sides are equal and parallel to each other are called parallelogram. |
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| 4366. |
Simplify 7-√3/7+4√3 |
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| 4367. |
Find the area of equilateral triangle with side 2√3 cm³ |
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Answer» Yes you are correctarea ={tex}\\sqrt 3/4\\times (side)^2{/tex} I think that the right answer is 3√3 cm^2 area={tex}\\sqrt 3/2\\times (side)^2{/tex}=1.73/2*{tex}(2\\sqrt 3)^2{/tex}=1.73x 12/2=1038 cm sq |
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| 4368. |
Find the value of p mean is 16.6 |
| Answer» write complete question | |
| 4369. |
If n+y+z=1,xy+yz+zx = -1 find the value of x³+y³+z³ |
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| 4370. |
If a+b+c=12, a²+b²+c²=90 . Find the value of a²+b²+c²-3abc |
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| 4371. |
Construct a ∆ abc with bc = 8cm (b = 45and AB - ac = 3.1cm |
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| 4372. |
Define ordinate of a point on the xy-plane. |
| Answer» It is the y co ordinate of the point | |
| 4373. |
√5-√4 |
| Answer» It\'s √5-√4√5-√2^2√5-2 √5-2 or 0.2360 is the answer | |
| 4374. |
X axis |
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Answer» Y=0 Absicca is x cordinate Absicca |
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| 4375. |
Exponents question |
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| 4376. |
If a sphere is cut into four equal parts . Find the total area of one fourth part |
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| 4377. |
Write the formula used to calculate the total surface area of a hemispherical solid of radius r |
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Answer» 3πr*r 3×22÷7×r×r 3x22/7xradius(r)squre |
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| 4378. |
Simplify : (√3+1) (1-√12) + 9/√3+√12 |
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| 4379. |
Chapter 2 ex 5 |
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| 4380. |
5×2=? |
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Answer» 10 52 |
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| 4381. |
The ratio of whole surface area of solid and solid hemisphere is_______ |
| Answer» TSA of sphere =(4πr^2)TSA of hemisphere =(3πr^2)TSA of sphere / TSA of hemisphere\xa0= (4πr^2)/(3πr^2)=4:3\xa0the ratio is 4:3. | |
| 4382. |
The rational number not lying between 3/5 and 2/3 is what with method |
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| 4383. |
Show that area of rhombus is half the product of its diagonals |
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| 4384. |
If a = 3-√5÷2 find the value of a^2+1÷a^2 |
| Answer» A= (3+√5)/21/a = 1/[(3+√5)/2]=> 1/a = 2/(3+√5)\xa0=> 1/a = 2(3-√5)/(3+√5)(3-√5)rationalizing the denominator=> 1/a = (6-2√5)/3²-(√5)²=> 1/a = (6-2√5)/9-5\xa0=> 1/a = (6-2√5)/4\xa0(a+1/a)² = a²+1/a ²+2=> [(3+√5)/2 + (6-2√5)/4] = a²+1/a²+2=> [2(3+√5)/(2)2 + (6-2√5)/4] = a²+1/a²+2Making denominator equal=> (6+2√5+6-2√5)/4 = a²+1/a²+2=> 12/4 = a²+1/a²+2=> 3 = a²+1/a²+2=> 3-2 = a²+1/a²=> 1 = a²+1/a² | |
| 4385. |
What is an irrational number,??? |
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Answer» Irrational numbers are the numbers which cannot be expressed in the form of p/q.Example such as √3 It is the number which cannot be expressed in the form of a/b. |
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| 4386. |
Ab=bc-cb |
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| 4387. |
Converse of Pythagoras theoram |
| Answer» There is no converse of pythogoras theorem | |
| 4388. |
ABC is a triangle AB equal to AC how |
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Answer» A B C is a triangle in which sides AB =Ac . It is possible when its opposite angles are equal. It is so because it will be an isoscules triangleIn an isosceles triangle the sides AB & AC are epual In an isosceles triangle execpt the base other 2 sides are equal and also the angle of the sides are equal. By taking the triangle ABC as isosceles triangle. |
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| 4389. |
What is class interval |
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| 4390. |
Sum of any two sides of a triangle is___ |
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Answer» The sum of any two sides of triangle is always greater than the third side . This is theorm. Greater than the third side Greater than the 3rd side Greater than third side |
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| 4391. |
What is madhy |
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| 4392. |
Of q is the midpoint of line segment AB and p is the midpoint of AQ then show that AP=1/4 AB |
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| 4393. |
1222÷67 |
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Answer» 18.238806 18.238809701 18.23880567 56 |
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| 4394. |
If an angle is equal to its complement find the angle. |
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Answer» its 45 90 |
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| 4395. |
if each side of a triangle is double then how many area is increased |
| Answer» The area will be increased by 4 times | |
| 4396. |
What is the cube root of 169 |
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Answer» 169 is not a perfect cube of any number. But 169 is a perfect square root of 13 Mohit is correct its 13 only Nooo it is approximately 5.529 13 |
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| 4397. |
Proove that q median of a triangle divides it into two triangles of equal area |
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Answer» How do you upload pics? |
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| 4398. |
Sample paper of class 9 2018 19 |
| Answer» You can download pdf from:https://www.topperlearning.com/learn/sample-papers/cbse/class-9/b101c1e2 | |
| 4399. |
Why do we find length of rectangle ( statistics class 9) |
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| 4400. |
Sum of two supplementary angle differ by 48 degree |
| Answer» Sum of supplementary angles = 180 degrees1st angle = x2nd angle = x+48x + x + 48 = 180 degrees2x + 48. = 180 degrees2x. = 180 - 482x. = 132x = 132 / 2\xa0x = 66therefore the first angle = 66 degreesthe second angle = 66 + 48= 114 degrees | |