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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Find the value of k if x+2 is a factor of 2x^4+3x+2kx^2 +3x+6 |
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Answer» Answer:i hope this will HELP you... I hv USED remainder theorem and FACTOR theorem... First READ these from 10th class Maths BOOK.. |
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| 2. |
What is column method |
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Answer» Answer: The column METHOD is a MATHEMATICAL method of calculation where the numbers to be ADDED or subtracted are set out above one ANOTHER in columns. The calculation is DONE by 'carrying' and 'borrowing' numbers from column to column. |
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| 3. |
If a =√2 find the value of (a-1/a)^2 |
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Answer» Step-by-step EXPLANATION: I HOPE you UNDERSTAND ;-) |
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| 4. |
Prove that the product of two concecutive positive integers is divisible by 2 |
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Answer» to PROVE it multiply 7*8 multiply 13*14 multiply 9*7 |
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| 5. |
If the remainder on dividing the polynomial x3 + 2x2 + kx + 3 by x - 3 is 21 , find the quotient and the value of k. |
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Answer» QUOTIENT =x2+5x+1 K=7 |
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| 6. |
A person standing at the bank of a river observes that the angle of elevation of the top of a tree standing on the opposite bank is 60 degree. when he moves 40mtrs away he finds the angle of the elevation to be 30 degree find the height of the tree and the width of the river |
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Answer» width 20 and h 20 root3 Step-by-step explanation: |
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| 7. |
Find the sum of those integers numbers between 1and 500 divisible by 2 and 5 |
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Answer» Answer: 12250 Hope this helps! Step-by-step explanation: integers which are multiples of 10 are also the multiples of 2 and 5. Therefore, multiples of 2 as well as of 5 between 1 and 500 are: 10, 20, 30, ...., 490 Series forms an AP with first term,a=10 and common difference,d=20-10=10. Let total number of TERMS of this AP be n. Therefore, NTH term of AP, an = Last term, l= 490 an=a(n-1)d=l; 10+(n-1)10=490; (n-1)10=480; n-1=48; n=48+1=49; n=49 Thus,sum of n terms of AP is given as: S₄₉=49/2 (10+490); =49/2 (500); =49×250=12250 |
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| 8. |
The zeroes of f(X)=4x2- 4x +1 are |
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Answer» Answer: 1/2. Step-by-step explanation: 4x^2-4x+1 is the SQUARE of 2x-1. Hence the ZEROES are 1/2 and 1/2. |
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| 9. |
The equation y=5 in two variables, can be written as |
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Answer» X+y=5 |
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| 10. |
.Find the value of ‘k’ such the quadratic polynomial x2 – (k+ 6) x + 2 (k+1) has sum of the zeroes is half of their product. |
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Answer» Answer:VALUE of k doesn't exist Step-by-step EXPLANATION: k+6= 1/2×2k+1 k+6= k+1 k-k=1-5 0=-4 HENCE it doesn't exist |
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| 11. |
a solid sphere of radius 12 cm is melted and recast into a spherical balls of radius 1 cm find the number of balls made |
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Answer» Answer: 1,728 balls Step-by-step EXPLANATION: |
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| 12. |
Where you can use pythagoras theorem |
Answer» We can USE it in a RIGHT angled triangle to find the unknown SIDE |
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| 13. |
A student secures 90 marks in his first test and 75 marks in the second test. Find the percent of increase/decrease. |
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Answer» Answer: 16.06% Step-by-step EXPLANATION: REFER THE ATTACHMENT . |
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| 14. |
A list price of computer is 41800 rupees and it is sold at a discount of 8% find the selling pricepl ans. the solution |
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Answer» Answer: 38456 Step-by-step EXPLANATION: = 41800 - (41800*8/100) = 41800 - 3344 = 38456 |
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| 15. |
Prove root 5 irrational |
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Answer» <P>Answer: Step-by-step explanation: SOLN- LET √5 be an rational no. which can be expressed in FORM p/q where p,q are co-primes ( I.e their hcf is 1) √5=p/q Squaring on both sides 5=p^2/q ^2 P^2=5q^2…..(1) 5 divides p^2 ,therefore 5 divides p Let p=5m..Where m is any I p^2= 25m^2 Replacing value of p^2 from (1) 5q^2=25m^2 q^2=5m^2 5 divides q^2 .. 5 divides q Now we get there is a common factor 5 between p and q……. This contradicts fact that p,q are co primes That means our ASSUMPTION that √5 is rational is wrong Hence √5 is irrational |
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| 16. |
Phove it☺0.0 = 1 how you will prove it |
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Answer» A=B=1 A=B MULTIIPLYING A ON BOTH SIDES A^2 = AB SUBRACTING B^2 ON BOTH SIDES A^2-B^2=AB-B^2 (A+B)(A-B)=B(A-B) DIVIDING A-B ON BOTH SIDES A+B=B A=0 1=0 HENCE PROVED MARK ME AS BRAINLIEST |
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| 17. |
How to know on which co-ordinate does the equation cutpleaseeee give me write nownownow |
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Answer»
ok To find out the coordinates of a POINT in the COORDINATE SYSTEM you do the opposite. Begin at the point and FOLLOW a vertical line either up or down to the x-axis. There is your x-coordinate. And then do the same but following a horizontal line to find the y-coordinate. mark me as the BRAINLIEST |
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| 18. |
The square of a number is the product of the number with the number itself??? |
Answer» Square number. In mathematics, a square number or PERFECT square is an INTEGER that is the square of an integer; in other WORDS, it is the product of some integer with itself. For example, 9 is a square number, since it can be written as 3 × 3. |
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| 19. |
Evaluate this sum stepwise and the answer = 42/11 |
Answer» here is UR ANSWER...HOPE it HELPS.... |
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| 20. |
(x²+3) (x²+4)please give me step by step explanation... |
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Answer» Step-by-step EXPLANATION: |
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| 21. |
if alpha and beta are the roots of the quadratic equation ax^2+bx+c ,find the quadratic equation whose roots are alpha^2+beta^2 and alpha^-2+beta^-2. |
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| 22. |
The probablity if 2digit number less than 60 and divisible by 5 |
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Answer» Step-by-step explanation: The probability of getting 2 DIGIT number less than 50 and divisible by 5are 10,15,20,25,30,35,40,45, 50,55 Number of favourable OUTCOMES = 10 Total number of outcomes= 60 P(E)= No. of favourable outcomes/ Total no. of outcomes =10/60 =1/6 HOPE YOU UNDERSTOOD THE ANSWER AND FOLLOW ME AND MARK AS BRAINLIST ANSWER...... |
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| 23. |
Help me with tHIS...................... |
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Answer» SHELLY CHRISTY visual verbal birthday Dudley DRIVEL varietysnKY DIRNDL |
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| 24. |
1. Multiply and express the result as a rational number in the standard form.(i) 11by 7-3by 8 |
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Answer» Answer: I know but sorry I cannot TELL you Intex and I don't know how to SEND IMAGE and all |
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| 25. |
17. Two-fifth of one-third of three-seventh of a number is 15. What is 40 percentof that number? |
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Answer» As given Two-fifth of one -third of three-seventh of number is 15. Let us assume that the unknown number be X . Simplify the above x = 262.5 Percentage formula Percentage = 40% Put all the values in the formula Part value = 105. Therefore the 40 PERCENT of the 1575 is 105 . |
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| 26. |
Plzz slove this plzzzzzz....... |
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Answer» That’s SIMPLE 1 |
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| 27. |
A classroom is 10 m long, 6 m broad and 4 m high. How many students can accommodate if one student needs 1.5 m2 of floor area? How many cubic metres of air Will each student have? |
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Answer» Answer: 40 student Step-by-step EXPLANATION: |
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| 28. |
Please tell me answercorrect answer i mark as brain listif you can so please do in your copy and then send answer in photo |
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| 29. |
4th question First part |
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Answer» Step-by-step EXPLANATION:
= 4*6 = 24 |
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| 30. |
Additive identity of wholenumbers is |
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Answer» Answer: 0 HOPE IT HELPS YOU PLEASE MARK ME AS THE BRAINLIEST |
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| 31. |
If the radii of the circular ends of a frustum which is 45 cm high are 28 cm and 7 cm. Find thevolume of the frustum. |
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Answer» radius 1 = 28 CM and radius 2= 7 cm Height = 45 cm volume of frustum = 1/3 * 22/7 *h {r 1^2 +r 2 ^2 + r 1 * r 2 } = 1/3 * 22/7 * 45 {(28)^2 + (7)^2 + 28*7] = 22/7 * 15 {1029] = 22 * 15 * 147 = 48510 cm^2 therefore the volume of the frustum is 48510. |
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| 32. |
is it true to say that thebpqir of equations has a unique solution? Justify your answer -x+2y-2=0 and 1/2x-1/4y-1=0 |
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Answer» Step-by-step EXPLANATION: |
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| 33. |
The area of a quadrilateral ABCD in which AB=3cm,BC=4cm,CD=6cm,DA=5cm and diagonal AC =5cm is |
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Answer» what is the QUESTION I can't understand please describe? |
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| 34. |
Prove that 5 root 3 minus 2 root 7 is an irrational number |
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Answer» Step-bSubtract the sum of -250 and 138 from the sum of 136 and -272y-step EXPLANATION: |
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| 35. |
a fraction becomes 4/5 if 1 is added to each numerator and denominator. however if we subtract 5 from each we get 1/2. find the fraction solve in one variable |
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Answer» v Subtract the sum of -250 and 138 from the sum of 136 and -272\ Step-by-step EXPLANATION: |
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| 36. |
29. Find the mean marks of students from the following cumulative frequency distributionMarks O andaboveCandidates 8010 andabove7720 andabove7230 andabove6540 andabove5550 andabove4360 andabove2870 andabove1680 andabove10 |
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Answer» Subtract the SUM of -250 and 138 from the sum of 136 and -272 Step-by-step explanation: |
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| 37. |
State and prove Thales Therom |
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Answer» Answer: Statement: If a line is DRAWN PARALLEL to one side of a triangle, to interest the other two SIDES at INDISTINCT points, the other two sides are divided in the same ratio. Given: - In △ABC,DE∥BC To prove:- AD/DB = AE/EC Construction:- BE and CD are joined. EF⊥AB and DN⊥AL are drawn. Proof:- ar(△ADE) = 1/2×AD×EF =1/2×AE×DN ar(△BDE) = 1/2×BD×EF ar(△CDE) = 1/2×EC×DN ar(△ADE)/ar(△BDE) = 1/2×AD×EF/1/2×BD×EF ........(1) ar(△ADE)/ar(△CDE) = 1/2×AE×DN/1/2×EC×DN ........(2) But, ar(△BDE) = ar(△CDE) ..............(3)
as they are on the same base DE and DE∥BC from (1), (2) and (3) we GET AD/DB = AE/EC |
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| 38. |
The angle between the line joining the points (1, -2) & (3, 2) and the line x + 2y – 7 = 0 is |
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Answer» What have to be ANSWERED ??? |
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| 39. |
The sum of two number is 40. If the smaller number is doubled,it becomes 14 more than the larger number. Give the algebraic and graphical representation of the statement |
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Answer» Answer: 18, 22 Step-by-step EXPLANATION: Let us assume the smaller number is X Hence the larger number = 40 -x When x is DOUBLED 2x = (40-x)+14 Solving 2x = 40 -x +14 3x = 54 x =18 |
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| 40. |
If x = 3+ √7 2 , find the value of 4 x2 + 1/x2 |
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Answer» Answer: Step-by-step explanation: x = (3+√8)(3-√8) / (3-√8) x = (9 -8) / (3-√8) x = 1/ (3 -√8) Or we can write 1/x = (3-√8) PUT the value and find out x² +(1/x²) = x² + (1/x)² So x² + 1/ x² = (3 +√8)² + (3 -√8)² = 9+6√8+8 + 9–6√8+8 = 34. Ans…………... |
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| 41. |
The graph of the line y=-3 doesn't pass through the point A. 2,-3B. 3,-3C. 0,-3D. -3,2 |
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Answer» Answer: option D i THINK |
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| 42. |
X+2x+3x+9 what number will make the equation true |
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Answer» Step-by-step EXPLANATION: |
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| 43. |
By Quadratic expression how do I factorise 4ysquare+12ysquare+9 |
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Answer» Answer: 4y²+12y+9=0 =(x-6)(x-6) |
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| 45. |
Is the cost of one break is rupees 3 then find the cost of 7000 bricks |
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| 46. |
6a^2b^2-7abx-3b^2=0,a is not =0 |
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Answer» Answer: Subtract the SUM of -250 and 138 from the sum of 136 and -272 Step-by-step EXPLANATION: |
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| 47. |
From a wite 50 metre long, pieces of equal size are cut. If the length of piece is 3 1/3 metre, find the no. Of such pieces |
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Answer» Step-by-step explanation: LENGTH of the rope = 50 m length of one PIECE = 31/3 therefore , no . of PIECES = 50/31/3 =150/31 =4.8387 pieces... |
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| 48. |
In an isosceles trapezium one of the non parallel sides measure 4cm.whatnis the measure of other non parallel side? |
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Answer» given = measure of one NON parallel side of an ISOSCELES TRAPEZIUM is 4 cm as we KNOW, the non parallel sides of an isosceles trapezium are equal. Therefore, measure of other non parallel side = 4CM |
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