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.
| 37601. |
Question is que |
| Answer» Answer is answer | |
| 37602. |
X÷2+y=0.8 and 7÷x+y/2=10 |
| Answer» {tex}\\frac{x}{2}{/tex}\xa0+ y = 0.8\xa0{tex}\\Rightarrow{/tex}\xa0x + 2y = 1.6{tex}\\Rightarrow{/tex}\xa0x = 1.6 - 2y ...........(i)and\xa0{tex}\\frac{7}{x+\\frac{y}{2}}=10{/tex}{tex} \\Rightarrow \\frac{14}{2 x+y}{/tex}\xa0= 10{tex}\\Rightarrow{/tex}\xa020x + 10y = 14{tex}\\Rightarrow{/tex}\xa010x + 5y = 7 ..........(ii)Put (i) in (ii), we get10(1.6 - 2y) + 5y = 7{tex}\\Rightarrow{/tex}\xa016 - 20y + 5y = 7{tex}\\Rightarrow{/tex}\xa0-15y = -9{tex}\\Rightarrow{/tex}\xa0y =\xa0{tex}\\frac{9}{15}{/tex}\xa0= 0.6Put y = 0.6 in equation (i), we getx = 1.6 - 2(0.6)x = 0.4Hence x = 0.4 and y = 0.6 is the solution of given system of equations. | |
| 37603. |
3/5+2/5 |
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Answer» 1 3÷5 +2÷5= 3+2 ÷ 5= 1 3/5 +2/5 =(2+3)/5=5/5=1 3/5+2/5: the LCM of the denominator is 5 and the sum of numerator is 3+2=5 So,5/5 gives1 it means that 3/5+2/5=1 3/5+2/5=5/5=1 1 |
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| 37604. |
Find 2 consecutive numbers whose square have the sum 85. |
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Answer» Yaa it is correct even i am getting the same answer Let two consecutive number is x and( x+1)x^2 +(x+1)^2=85x^2+x^2+2x+1=852x^2+2x=85-12x^2+2x=842(x^2+x)=84x^2+x=42x^2+x-42=0x^2-6x+7x-42=0x(x-6)7(x-6)=0(x-6)(x+7)=0x=6,-7If x is 6 then the other number (x+1) is 7 and if x=-7 then the other number ( x+1) is -6.Prove : x=6 (6)^2+(7)^2=36+49=85 x=-7 ( -7)^2 +(-6)^2 = 49+36=85 Hence the two numbers are 6 and 7 My Answer is 6 and. 7 If it is right Answer then you reply me |
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| 37605. |
Prove that 2 is irrational number |
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Answer» The question you have asked is wrong it is not to prove 2 is irrational , it is to prove that root 2 is irrational 2 is not a irrational number Dont ask silly questions ??????? I think its Root 2 Get it from rd sharma Sorry, if you are not agree with me?? Here mathematical language is little bit tough to type Yar you have to got it from rs aggarwal book. |
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| 37606. |
What is the probability of raining on a clear sky day |
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Answer» 1\\2 1/2 |
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| 37607. |
find the hcf and vrify LCM and hcf 336&54 |
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Answer» LCM - 3024HCF - 6 336=2⁴×3×7. 54=2×3³. Hcf=2×3=6. Lcm =2⁴×3³×7=16×27×7 =3024 HCF=6LCM=3024 |
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| 37608. |
8÷4(2+2)=? |
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Answer» 1/2 I think 8 hoga 0.5 1/2 1/2 1/2 bro, but why you ask such a silly question 1/2 1/2 |
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| 37609. |
Prove that root x+1 - root x-1 is an irrational no. |
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| 37610. |
What is polynomail? |
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Answer» Any constant and variables having non -negative degree is called polynomial An expression in which constant and variable are joined with sign(+,-,×,÷) is called polynomial???? Is it right An expression having constant ,variable and degrees . |
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| 37611. |
How can i make my calculation better |
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Answer» Perfect practice makes man perfectSo by regular practice you can do it . By the regular practice of addition subtraction multiplication division not on the notebook but in mind |
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| 37612. |
1-1001 |
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Answer» -1000 -1000 How 5 ??? -1000 5 |
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| 37613. |
solve x÷a+y÷b=2 , ax+by=a^2+b^2 by cross multilication method |
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| 37614. |
Trignometry 9chapter 11question i need answer |
| Answer» | |
| 37615. |
Prove that 3+2 root 5 is irrational |
| Answer» We will prove this by contradiction.Let us suppose that (3+2 {tex}\\sqrt { 5 }{/tex}) is rational.It means that we have co-prime integers a and b such that{tex}\\frac { a } { b } = 3 + 2 \\sqrt { 5 } \\quad \\frac { a } { b } - 3 = 2 \\sqrt { 5 }{/tex}{tex}\\Rightarrow \\frac{{a - 3b}}{b} = 2{\\sqrt 5 \\,{ \\Rightarrow }}\\frac{{a - 3b}}{{2b}} = \\sqrt 5 {/tex} ....(1)a and b are integers.It means L.H.S of (1) is rational but we know that {tex}\\sqrt { 5 }{/tex} is irrational. It is not possible. Therefore, our supposition is wrong. (3+2 {tex}\\sqrt { 5 }{/tex}) cannot be rational.Hence, (3+2 {tex}\\sqrt { 5 }{/tex}) is irrational. | |
| 37616. |
Prove that 3+2 |
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Answer» 5 5 is the right answer 5 |
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| 37617. |
Any body prove that LHS=RHS |
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Answer» LHS=0. andRHS=0. Hence LHS=RHS Proved Hence LHS=RHS This is the right way to answer isn\'t it? LHS=RHS |
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| 37618. |
Send me paper format |
| Answer» Check here : https://mycbseguide.com/cbse-syllabus.html | |
| 37619. |
how to proof thales theorem |
| Answer» | |
| 37620. |
Solve √2 |
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Answer» 1.4142135623730 1.414 |
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| 37621. |
Find the irrational number between √5 and √7 |
| Answer» | |
| 37622. |
Ex6.3 |
| Answer» You can check NCERT Solutions here :\xa0https://mycbseguide.com/ncert-solutions.html | |
| 37623. |
2+3+4*2+5-10+2*2-5-2+10*2-1-3 |
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Answer» * is a square ok Give me right answer Wrong answer 21 21 |
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| 37624. |
How to find frequency |
| Answer» | |
| 37625. |
X= 2-×\\2-1/× |
| Answer» What?? | |
| 37626. |
Which term of an AP 3, 15, 27, 39... is 132more than it\'s 54th term |
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Answer» 65 65 is right answer |
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| 37627. |
1.5t*2+5t -84 =0Find t? |
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Answer» t is 5.6 understood or need more clarification convert 1.5 into 3/2 oknow 3/2t*2+5t-84=0now 3/2t*2+14t-9t-84=0[3/2.84=121also=3.7.2.3 ok so factors are 14 and-9 ][ here we let .=multiplication means 2.3 =2 multipy3]now taking comman3/2t[t+28/3]-9[t+28/3]now [t+28/3] [3/2t-9]=0so t=-28/3 or t=9.2/3so we take only postive value so t=9.2/3=6so t =6 i hope you will understand wait Show the solution t is 6 |
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| 37628. |
A number when divided by 61 gives 27 as quationt as 32 reminder . Find the number |
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Answer» 1679 2 |
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| 37629. |
Aen |
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| 37630. |
a, a2, a3, a4 |
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| 37631. |
What is the complementary angle of 49 degree |
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Answer» 41 41 41 degrees 90-49=41is complementry angle Two angles are called complementary angles, if their sum is one right angle i.e. 90°.Each angle is called the complement of the other.\xa0Thus, the complement of angle 49° = 90° - 49° = 41°. |
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| 37632. |
4√6x^2 -13x -2√6 factorise it |
| Answer» 4 root 3 x square - 16 X + 3 x minus 2 root 6 | |
| 37633. |
What is the formula of a square + b square ,step by step |
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Answer» You all are wrong answer is a²+b²=(a+b) (a-b) a2+b2+2ab A+2ab+bkasquare |
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| 37634. |
3+2√3/3-√3 =a√3+b Find value of √a+bA and B are rational number |
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Answer» Do it by rationalising method and you will get your answer. a=3/2. b=5/2 Okk Search this ques. on GOOGLE plz... |
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| 37635. |
x square-4root3+3 find the zeroes |
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| 37636. |
The solution of the equations 2x-y=5 and 3x+2y=11is |
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Answer» X=3. Y=1 X is equal to 3 and y is equal to 1 Y equal to 1 and x equal to 3 |
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| 37637. |
Mahi thinks a number whose 25% is less than 18% of 650 by 19 .find the number which mahi thinks. |
| Answer» 392 | |
| 37638. |
The sum of squares of 3 consecutive no is 110 determine the number |
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Answer» Let three consecutive natural numbers be x, x + 1 and x +2.Then according to problem(x)2\xa0+ (x + 1)2\xa0+ (x + 2)2\xa0= 110⇒ x2\xa0+ x2\xa0+ 1 + 2x + x2\xa0+ 4 + 4x – 110 = 0⇒ 3x2\xa0+ 6x – 105 = 0⇒ x2\xa0+ 2x – 35 = 0⇒ x2\xa0+ 7x – 5x – 35 = 0⇒ x(x + 7) – 5(x + 7) = 0⇒ (x + 7)(x – 5) = 0⇒ x + 7 = 0 or x – 5 = 0⇒ x = -7 or x = 5But x = - 7 is rejected as it is not a natural number.Then x = 5Hence, required numbers are 5, (5 + 1), (5 + 2)i.e., 5, 6 and 7. Thanks X²+(x+1)²+(x+2)²=110. X²+x²+1+2x+x²+4+4x=110. 3x²+6x+5=110. 3x²+6x+5-1103x²+6x-105=o. 3(x²+2x-35). X²+2x-35=0.X²+7x-5x-35=0. X(x+7)-5(x+7). (X-5) (x+7)=0X=5,-7.The numbers are 5,6,7. |
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| 37639. |
X/a+y/b=2Ax+by=(a×a+b×b) |
| Answer» | |
| 37640. |
What is the use of Trigonometry in common life?? |
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Answer» ☹️☹️☹️☹️☹️☹️ You really want to know?? Then let me tell you... Only one person in this whole universe can answer this question of yours..but sadly he died.... And the sad part is that now you have to study trigonometry without knowing its use in general... All the best buddy...?? |
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| 37641. |
State BPt |
| Answer» Basic proportionlity theorem introduced by thales theorem | |
| 37642. |
find all the zeros of the polynomial x^4-3x^3+6x-4 if two of its zeros are√2 and -√2 |
| Answer» If a line is drawn from one side of a triangle to the other side parallel to the third side then the two sides are divided in the same ratio(or proportional) | |
| 37643. |
Tan theta + Sec theta=pWhat is the value of cosec theta |
| Answer» cosec theta= 1/p-cos theta | |
| 37644. |
find 3rd term an is 3+9n |
| Answer» I think something is missing in this question | |
| 37645. |
22/7 is a rational or irrational number |
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Answer» 22/7 is rationalise value pie so it is rational but pie is not rational Irrational number irrational number It is a rational no. Because it is in the form of p/q Irrational number Rational Rational number Rational |
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| 37646. |
Find the distance between the points (2,3) , (4,1) |
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Answer» 2root 2 is answer A_____________________________B(2,3). (4,1)A(2,3). B(1,4) x1,y1. x2. y2Using distance formulaAB = √ (x2-x1)2+(y2-y1)2AB =√(1-2)2+(4-3)2 AB =√1+1 AB =√2 |
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| 37647. |
43.123456789 is a rational or irrational number |
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Answer» x = 43.123456789is a rational .x = 43123456789/( 1000000000 )= 43123456789/( 10^9 )= 43123456789/( 2 × 5 )^9= 43123456789/( 2^9 × 5^9 )\xa0Here , q = 2^9 × 5^9 ( 2ⁿ × 5^m form )43.123456789 is a terminating decimal.\xa0 It is rational Rational No. Beacuse it is terminate at last It is rational because decimal expansion is terminating. Therefore, it can be expressed in p/q form where factors of q are of the form 2n.5m where n and m are non-negative integers. |
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| 37648. |
Lcm of1849 |
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Answer» Invalid question But this is prime factorisation of 1849 becoz ek no. ka LCM nhii hota.....uske liye two no. ka hona jaruri hai taki hum least common factor nikal sake dono no. ke beech......okk? 1849=43×43=43²? Pura solve karo Give me answer |
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| 37649. |
Find Mean step daviation method |
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| 37650. |
Kiyah hum yeha paii basic or standrad kha samples paper milagaii |
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