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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. |
if 25 persons can dig a trench 36m long in one day,then find the number of persons required to dig a trench 108m long in one day |
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| 2. |
2If one zero of a polynomial x2+ (3-V2)x-3v2 is V2, find the other zero. |
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Answer» wrong answer to the question |
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| 3. |
10. If one zero of the polynomial x2-4x +1 is2+ v3, write the other zero. (Foreign 2010) |
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| 4. |
, find the value of 2. and theIf one zero of the polynomial 2x + 3x + 2 isother zero. |
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Answer» We will put1/2 in the place of the xto get the value of lemdaso2*(1/4)+3(1/2)+lemda= 01/2+3/2+ lemda= 0lemda= -2thanks |
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| 5. |
16)(5)18. A cubic polynomial has(a) two eros (b) one zero(c) thrce zeros(d) at least three zero!INCERT Exemplar]qual to(2) 6 |
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Answer» option Can is right cubic polynomial has 3 zeros alpha, bita, gamma 3 zeros is the correct answer 🤗🤗🤗 A cubic polynomial has three zeroes one zero is the correct answer Three zero is the best answer 3 zeros is the correct ans 3 zeros is the correct one one zero is the correct andswer 3 zero is the best answer |
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| 6. |
Prove that a linear polynomial has one and only one zero. |
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Answer» Number of zeroes of a n -degree polynomial = n. First, a linear polynomial is in the form of ax + b, a≠0, a,b ∈R Degree of the polynomial = highest degree of the terms So here highest degree is 1. Hence, Linear polynomial has only one zero. |
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| 7. |
Ifa, β are zeroes off(x)-x2-m(x+1 )-n , find the value of (α + l )( β+1).LLtC find the yalue of cos (A+ B).in ntea of resultin |
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Answer» f(x)=x²-mx-(m+n)=0alpha+beta=malpha*beta=-(m+n) To find,(alpha+1)(beta+1)alpha*beta+alpha+beta+1=-(m+n)+m+1=-m-n+m+1=1-n |
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| 8. |
i. Prve the ollowving idantySECTION C |
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Answer» your equation is not always true, it only holds true when theta is 0 Thankss |
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| 9. |
SECTION Cira-$-: and b-a-find the vie ore.v |
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| 10. |
the tower from the foot of the hill IsSECTION-C |
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| 11. |
37. The smallest odd number formed by using thedigits 1, 2, 3, 4 and 5 is(a) 12345(c) 12453shopl(a) ?(b) 12435(d) 1253447. The |
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Answer» The smallest odd number is 12345 As it ends with 5, it is an odd number Like my answer if you find it! distributive property explain distributive property |
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| 12. |
4. The smallest odd prime number is |
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| 13. |
6. Which is the smallest number that mythis the smallest number that must be multiplied withd) (12)Express the following cubos as sum of odd numbers.c) (11)a) (7) b) (8)the cubes of odd numbers? |
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Answer» (7)3=7×7×7=343 is your answer (11)3=1331 is your correct answer. |
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| 14. |
Sickle-cell anemia is related to which type of disease? |
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Answer» Sickle cell disease (SCD) is a group of blood disorders typically inherited from a person's parents. The most common type is known as sickle cell anaemia (SCA). Like my answer if you find it useful! answer |
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| 15. |
thepLEVEL-229. A number x is chosen at random from the numbers-3,2-10123that lxl < 2 is |
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| 16. |
perpendicular to the plane x-4yT52 , -27. Find the equation of the plane through thepperpendicular to the plane x +2y+2z=5., 1, 1) and ( |
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Answer» The second point is not visible properly. Please post the question again and make sure that point is visible this time. |
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| 17. |
SECTION Cresultinbe added to the polymomial p) 95x 15, so that the nd to theppolynomial is exactly divisible by 2x +3.OR |
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| 18. |
EXERCISE UIIThe angles of quadrilateral are in the ratio 3 5:9: 13. Find all the angles ofquadrilateralr cuual, thep show that it is a rectangle |
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Answer» Let X be the common multiple3x+5x+9x+13x=360...sum of all angles of quadrilateral is 360°Hence30x=360x=12°Hence3x=3*12=36°5x=5*12=60°9x=9*12=108°13x=13*12=156° |
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| 19. |
Q 1: An armyThe two grouin which they can march?contingent of 616 members is to march behind an army band of 32 members in a parade.ps are to march in the same number of columns. What is the maximum number of columns |
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| 20. |
02. A vertical pole of length 6 m casis a shadow 4 m long on the grouand at the same time a tower casts a shadow 28 m long. Find theheight of the tower |
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| 21. |
เเI Find the equation of the line which makes an angle of 30, with the positive-0ะdirection of the x-axis and cuts off an intercept of 4 units with the negativedirection of the y-axis. |
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| 22. |
D Find the cost ds bencing a rectanzulon pankds length 350m and brcauth 25om at the nateç18:50 Per metra. |
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Answer» Perimeter of rectangular park is:2×(350+250)1200 mso rate is 1200×18.50=22200 thanks |
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| 23. |
d Less than 1(e) A factor of 36(f) A factor of 6The figure shows the dimensions of a wall having5x+2Door5xa window and a door of a room. Write an algebraicexpression for the area of the wall to be painted.Find the cube root of 125Window3x |
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Answer» cobe root of 125/1728 = 5*5*5/12*12*12 = 5/12 can you please answer me that figure one. |
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| 24. |
wall 8 m × 6 m x 22.5 cm!2. A metallic sheet is of rectangular shape with dimensions 48 m x 36 m. Frocorners, a squareis cut off so as to make an open box. If the length of the square is 8 m,the volume of the box. |
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| 25. |
A door of breadth 1m and height 2m fitted in a wall. The length of the wall is 4.5m and the height is 3.6m . Find the cost of white washing the wall ,the rate of white washing the wall is rupees 20per metre square |
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| 26. |
31. One zero of the polynomial x2 - 2x - (7p + 3), find the value of p and the other(C.B.S.E. 2012)Chili11. 3 |
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Answer» Given f(x) = x^2 – 2 x – (7 p + 3) Given one zero of polynomial f(x) = - 4 and other zero be a So sum of zeroes = coefficient of x / coefficient of x^2 -4 + a = - (- 2)/1 -4 + a = 2 a = 2 + 4 = 6 The other zero is 6 Now product of zeroes = constant term / coefficient of x^2 -4 x 6 = - (7 p + 3) / 1 -24 = - (7 p + 3) 7 p + 3 = 24 7 p = 24 – 3 7 p = 21 P = 3 So the value of p is 3 x²-2x-(7p+3) = 0 (-4)²-2(-4)-7p-3 = 0 16+8-3-7p = 0 21-7p = 0 -7p = -21 p = 21/7 p = 3 If p = 3 , then (-4) is a factor of p(x) |
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| 27. |
Q.19One zero of the quadratic polynomial 2x' - 8x-k is 5/2. Find the other zeroes and also find the valueof k.[CBSE 2011, 3M) |
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| 28. |
dealialeäš |
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Answer» writing 103 as 100+3 and 105 as 100+5 therefore given above formula(100+3)(100+5)= 100^2+(3+5)100+3×5 = 10000+800+15=10815 |
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| 29. |
Find the area of the region bounded by the parabola9.- and lines y Ixl.bola with vertex at (0. 0) |
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Answer» complete question please |
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| 30. |
If y = f(x) = x + 1. **1 then show that, x=fly).Soin.:....(2) |
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| 31. |
nd yinthe foll |
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Answer» all the angles are equal then the triangle is an equilateral triangle..then x+x+x=180°3x=180°x=60° |
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| 32. |
d the roots of the folli) x2-3x-10=0 |
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Answer» We can write it as x²-5x+2x-10 = x(x-5)+2(x-5) = (x+2)(x-5) is the required answer |
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| 33. |
1. Find the HCF of the foll(a) 3y3 and 15y5 |
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Answer» 3y³ = 3×y×y×y15y^5 = 3×5×y×y×y×y×y so, the common terms are = 3*y*y*y= 3y³ is the h.c.f |
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| 34. |
Find the median of the foll: 9, 6, 5, 4, 7, 8, 3 |
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Answer» Given numbers are -9 , 6 , 5, 4 , 7 , 8 , 3 Now arrange the number in ascending order. i.e.,. -9 , 3 , 4 , 5 , 6 , 7 , 8 Now the number in the middle will be the median the number in the middle is 5.So median = 5 |
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| 35. |
EXERCISE II.6I. What will be the speed in the folla. You fly 1,500 km in 2 hours. |
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Answer» Distance = 1500 kmTime = 2 hoursSpeed = Distance/Time = 1500/2 = 750 km/hr |
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| 36. |
15-m-longFinladder is placed against a wall to reach a window 12 md the distance of the foot of the ladder from the wall.15 m12 m |
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| 37. |
ladder 15 m long reaches a window which is 9 m above the ground on one side of a street. Keeping its feetat the same point, the ladder is turned to other side of the street to reach a window 12 m high. Find the widthof the street. |
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| 38. |
. A ladder 15 m long reaches a window which is 9 m above the ground on one side of a strect. Keeping its feet atthe same point, the ladder is turned to other side of the street to reach a window 12 m high. Find the width of thestreet |
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Answer» ty |
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| 39. |
Mbula kept sh 50000 in a bank which paid a compound interest of 10% p.a.How much money did she have at the bank at the end of 3 years? |
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| 40. |
4. A ladder 15 m long reaches a window which is 9 m above the ground on one side of a street. Keeping its feet atthe same point, the ladder is turned to other side of the street to reach a window 12 m high. Find the width of thestreet. |
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Answer» thank u |
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| 41. |
A 15 m long ladder reached a window 12 m highfrom the ground on placing it against a wall at adistance a. Find the distance of the foot of theladder from the wall. |
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Answer» please can you write with hands |
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| 42. |
Co)ăco5 |
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Answer» 3x+2y=5...1x-3y=9....2multiply equation 2 by 3hence 3x-9y=18subtract both the equations 11y=-13y=-13/11x-3(-13/11)=9X+39/11=9X=9-39/11X=99-39/11=60/11 |
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| 43. |
A 15 mlong ladder reached a window 12 m highfrom the ground on placing it against a wall at adistance a. Find the distance of the foot of theladder from the wall.3. |
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| 44. |
ä¸.wansud- artuni. C luw ienbau tiataz)'tăźeoca2. |
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Answer» Please check the question once. There is something wrong with the question. |
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| 45. |
co-COSimnlify the foll... |
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Answer» 5 1/3-{4 1/3-(3 1/3- 2 1/3-1/3))16/3-(13/3-(10/3-7/3-1/3))16/3-(13/3-(10/3-8/3))16/3-(13/3-2/3)16/3-11/35/3 |
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| 46. |
03Jay and Vaishali are partners in a firm. The firm receives an order for goods. Vaishali wants to includeh saes igure on aoppotes it Stetic te isue HOTS U) |
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Answer» Vaishali cannot include the order for goods in the sales figure since it is only an order and the actual sale of goods has not yet taken place. |
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| 47. |
A door frame of dimension 4m × 3m is fixed on the wall of dimension 15m × 15m find the total labour charges for painting 1square metre of the wall is ₹ 3.50 |
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Answer» Total area to be painted= (15×15)-(4×3) m²=225-12 m²=213 m² Charges for painting 1m²=₹3.50Charges for painting 213m²=₹3.50×213=₹745.5 |
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| 48. |
.Sonali bought 5 purses for 105.75 and Tina bought 6 purses for 180.60. Who paidless and by how much for each purse? |
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Answer» sonali paid less and she paid 21.1t for each purse sonali paid less and sonali paid 21.1 rs for each purse sonali paid less and she paid 21.2 for each purse sonali paid less and sonali paid 21.1 Rs. for each purse. |
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| 49. |
32.Chibiri paid sh 480 for a tray of eggs aftergetting a discount of sh 20. What percentagediscount was he allowed? |
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Answer» Amount paid for tray of eggs = sh 400Didcount on tray of eggs = sh 20 So,Actual price of tray of eggs = sh 500 Now,Let discount percentage allowed be x (x/100)*500 = 20x = 20/5x = 4% Therefore, discount percentage allowed on tray = 4% |
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| 50. |
Divide 534 into three parts such that the second part will be 32 less than twice the first, and the thirdwill be 18 more than the first. |
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Answer» Let the first part be xThen second part = 2x-32Third part = x+18Their sum = 534x+2x-32+x+18 = 5344x-14 = 5344x = 534+144x = 548x = 548/4x = 137 First part = 137Second part = 2(137)-32= 274-32 = 242Third part = 137+18 = 155 thanx |
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