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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. |
ozy is 5 years younger than her brother. After 4 years, their ages will be in ratio 2:3, findages |
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| 2. |
s Amit is 19 years younger than his tather AerS years, their ags will be in the tatis2 3. Find their present ages |
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Answer» Let the age of Amit be xand age of his father be x+19After 5 yeras,Amit age= x+5Father age= x+5+19=x+24Given(x+5)/(x+19)=2/33x + 15 = 2x + 48 3x - 2x = 48 - 15 x = 33Therefore Amit age is 33 and father age is 33+19=52 |
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| 3. |
Raju is 19 years younger than his cousin, After 5 years, their ages will be in the ratio 2:3.Find their present ages. |
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| 4. |
What will be the cost of clectrical wire used for single phase wiring (live, neutral & carthy authe boundary wall of the circular stadium of diameter 98m? The rate of single core cable for lv& neutral is Rs. 15.00 per meter and the rate of earth wire is Rs. 5.00 per neter(a) Rs. 13,240.00() Rs. 12.560.00(b) Rs. 10,780.00(d) Rs. 11.333.00 |
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Answer» hence, option (b) is correct. |
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| 5. |
Kaivalya's brother is younger by 24 years than twice of Kaivalya's age.If Kaivalya's brother is 44 years old, what is Kaivalya's age?(1) 20 years (2) 38 years (3) 34 years (4) 40 years. |
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| 6. |
Wlsat will be the cost of electrical wire used for single phasc wiring flive, neutal & carty alongthu houndary wall of the circular stadium of diameter 98m2 The rate of sungle core cabie tor live& neutral is Rs. 15.00 per meter and the rate of earth wire is Rs. s 10 per meterĂa) Rs 13.240.00ic) Ks 12 560.00(b) Rs 10,780,00(d) Rs. 11.33300 |
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| 7. |
mohan father is 26 years younger than mohan grandfather and 29 years older than mohan the sum of the ages of all 3 is 135 years what is the age of each of them? |
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Answer» thanks |
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| 8. |
What will be the cost of clectrical wire used for single phase wiring (live, neutral & carthy authe boundary wall of the circular stadium of diameter 98m? The rate of single core cable for lv& neutral is Rs. 15.00 per meter and the rate of earth wire is Rs. 500 per meter.(a) Rs. 13,240.00() Rs. 12.560.00(b) Rs. 10,780.00(d) Rs. 11.333.00 |
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Answer» hence, the correct option is (d) |
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| 9. |
3. Show that AB - BA in each of the following cases:A-| sin θ-sin θ]B1cos φsin φ-sin φcos φand |
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Answer» Here AB = [cos∅cos¶ -sin∅sin¶ -sin¶cos∅+cos∅cos¶[sin∅cos¶ + cos∅sin¶. -sin∅sin¶ +cos∅cos¶ and BA = cos∅cos¶ -sin∅sin¶ -sin¶cos∅+cos∅cos¶[sin∅cos¶ + cos∅sin¶. -sin∅sin¶ +cos∅cos¶ hence AB=BA
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| 10. |
s&hemisphericaldepressioniscut out from one face of a cubical wooden block ofheedge 21 cm,Determinesuch that the diameter of the hemisphere is equal to the edge of the cubethe volume and total surface area of the remaining block. ICBSE 201026. A tov is in the form of a hemisphere sumuntod |
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| 11. |
) (28 + 7) (28 - 7) |
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Answer» (2a +7)(2a-7)We know (a+b)(a-b) = a^2 - b^2Using this(2a +7)(2a-7) = 4a^2 - 49 |
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| 12. |
(28 + 7) (28 - 1) |
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| 13. |
Value of Xin --+4,A) +28(B) -28(D)-14 |
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Answer» hit like if you find it useful |
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| 14. |
Subtract 28 mfrom 47 m 39m cm47 3928 25 |
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Answer» m cm 47 39- 28 29 19 10 |
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| 15. |
-(6*x - 28)^(1/3) %2B (6*x %2B 28)^(1/3)=2 |
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| 16. |
pay. How many yes can be made from the paperandreavailablele contains 900 ml of oil. What is the total quantity of oil contained in 4 woch botten! |
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| 17. |
A drum has 19 / 800 ml of juice. In how many juice bottles, each of 900 ml capacity, can it be filled |
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Answer» 19 litre 800ml of juicehence19*1000+800=19000+800=19800mlto be filled in 900ml bottles19800/900=22 bottles |
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| 18. |
drum has 19 / 800 ml of juice. In how many juice bottles, each of 900 ml capacity, can it be filled? - |
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Answer» 22 juice bottle fill compleatly |
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| 19. |
Find the next number in the series?[900, 1800, 5400, 10800, 22500...][900(1), 2*900(1), 3*900(1+1),4*900(1+2), 5*900(2+3)...] [Multiple |
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Answer» 45000 is right answer one more 900, 900*2=1800,..5400, 5400*2=10800,...22500, 22500*2=(45000.) than 45000 ie the correct answer |
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| 20. |
4 =has equal rootsFind the values of k, if the quadratic equation 3x^2-k/root/ 3x + 4=has equal roots. |
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| 21. |
Solve the equation: 3x^2 -11x -20 |
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| 22. |
quadratic equation 3x +1/ x-8 =0 |
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Answer» 3x2-8x+1=0 x=8+-root(64-12)/6 x=(8+2root13)/6 or (8-2root13)/6 are you sure you give right Answer |
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| 23. |
6. How many solutions does the equation 3x + 7y = 3 ? |
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Answer» So many solution can it have for an example3x= 3-7yx= 0 y= 7/3x= 1,y= 0likewiseplease share the feedback and like this solution |
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| 24. |
16. Find three different solution for the equation 3x-8y=27. |
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Answer» For equation 3x - 8y =27x = (27 + 8y)/3 If y = 0,x = 27/3 = 9 If y = -3x = (27 + 8*-3)/3 = (27 - 24)/3 = 3/3 = 1 If y = - 6x = (27 + 8*-6)/3 = (27 - 48)/3 = - 21/3 = - 7 Therefore,Three solutions are(9, 0), (1, - 3) and (-7, - 6) |
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| 25. |
6 Find the three different solutions for the equation 3x-8y = 27. |
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Answer» full process show me |
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| 26. |
For the matrix A=\left[ \begin{array}{ll}{3} & {2} \\ {1} & {1}\end{array}\right], the values ofa, and ‘b' such that A2 + aA + b1 = O are |
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| 27. |
1, sin-1(singe)虱丽丽新 |
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| 28. |
1. Find the area of the triangle ABC formed by the points A(-4,-3), B1-6 and cu s |
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Answer» 24 unitplease like the solution 👍 ✔️ |
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| 29. |
Very Short Question:If the eigen values of the matrix A are 0, -1 &2 then(G) Find the determinant value of matrix.(ii) Find the sum of the element of principal diagonal of the matrix(ii) Find the eigen values of matrix A2.1Ans: (i) 0(ii) 12 Find the eigen values of A and A1A2where A 2 3 0 Ans: 1, 9, 25 and 2,28/43 4 5[AKTU 2017] |
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Answer» love u bhai shaheb...aur 2nd questions ka kya answer hoga |
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| 30. |
nge the bonds in รถrder uO, and Cir,"skeletal structure of CH,COOH as shown below is correct, buts are shown incorrectly. Write the correct Lewis structure forasome dacetic acd.H:O: |
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| 31. |
1 a car travels 240 km in 16 litres of petrol how many litres of petrol is required to cover 1500 km? Q2 if the first second and III terms of proportion are 18 ,6 and 25 respectively, then find the fourth term? |
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Answer» ans of 1st question is 100 litres |
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| 32. |
A child playing with buildingblocks, which are of the shapeof cubes, has built a structure asshown in figure. If the edge ofeach cube is 3 cm, find thevolume of the structure built by the child |
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| 33. |
Bymeltingallthreea. Core of three cubes of metal are 3 cm, 5 em and 4 cm respectively.new cube is made. Find the volume of new cube and the length of the core of this cube.ntoing 1500 litres water in it. |
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Answer» Cubes with edge 5,3,4volume of eah cube will be =(5×5×5),(4×4×4), (3×3×3)=125,64,27total volume will be 125+64+27=216this volume will be of new formed cube side of cube =cube root of volume= 6lateral surface area of cube is 4×(side×side)=4×(6×6) =4×36 =144 |
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| 34. |
Find the eigen values and eigen vectors ofthefollowlng matrix A=\left[ \begin{array}{lll}{1} & {1} & {1} \\ {0} & {2} & {1} \\ {0} & {0} & {3}\end{array}\right](4 Marks) |
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Answer» A is Triangular matrix soeigen value are digonal entries i.e.1, 2, 3so forcorresponding eigen value eigen vector areAv = vA w = 2wA z = 3z |
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| 35. |
If the sum of the eigen values of 2 a 410, then find 'a |
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| 36. |
3. 1 42. Find the Eigen values and spectrum of the matrix A 0 2 6 |
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| 37. |
Exercise 5.1In a week, temperature of a certain place is measured during winter are26°C, 24°C, 28°C, 31°C, 30°c, 26°C, 24°C. Find the mean temperature of theas fol |
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| 38. |
,CesecaLove CA-ICorecaCore ct | |
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Answer» 1/SinA/1/Sin A -1 + 1/ SinA/1/SinA+1=SinA-1/SinA+ SinA+1/SinA=SinA-1/1+SinA=( SinA-1)(SinA+1)/(1+sinA)^2=Sin^2A-sina+sina-1/(cosA)^2=SinA(sin A)/cosA^2=tanA |
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| 39. |
10(a) 4(b) 28(c) 32 |
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Answer» thx |
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| 40. |
UUUU) is:0.46(a) 16(b) 28(c) 3656. If n is a natural number, then the largest number(b) 3(c) 6-then the largest number dividing (d) 125.5.C. 2004 |
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Answer» suppose n=4 then n^2-n=12, the factor of 12=1, 2,3,4,6,12 so ans is 6 |
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| 41. |
? 631. If30 , then which of the following num-28 ?bers replaces the question mark?(A) 14(C) 28(E) of these(B) 21(D) 42d C distribute Rs. 2.600 |
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| 42. |
In figure, if AQ5cm, find the perimeter of triangle ABC |
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Answer» Let PQ touch the circle at the point R. We know that tangents drawn from an external point to a circle are equal in length. AB = AC = 5cm AP +BP = AQ+ QC = 5cm AP + PR = AQ + QR = 5cm…………(1) [ BP = PR & QC = QR] Now, perimeter of ∆ APQ = AP +PQ+AQ = AP +RP+QR+AQ = 5 + 5 [ from eq 1] Perimeter of ∆ APQ= 10 cm |
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| 43. |
Which coal is known as Brown coal |
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Answer» Lignite, often referred to as brown coal, is a soft brown combustible sedimentary rock formed from naturally compressed peat. It is considered the lowest rank of coal due to its relatively low heat content. It has a carbon content around 60–70 percent. |
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| 44. |
4 cmS each side of 5cm. Find the length of one of its diagonals. |
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| 45. |
the Characteristic equation, Eigen values and spectrum of the matrix,3 -4 |
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| 46. |
Q. 11 Write note one Brown ring test. |
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Answer» It is a common nitrate test … addition of ferrous sulphate to nitrates … the slowly adding concentrated sulphuric acid such that the acid forms a layer below the aqueous solution . a brown ring will appear at the junction of two layers . |
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| 47. |
Page2-1 |
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Answer» here u go plz send a clear pic which class are you bro |
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| 48. |
9 hours as percent of 4 days. |
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Answer» 4days=96 hrsso 9=(x×96)/100so x=900/96=9.375% |
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| 49. |
write as percent19/4 |
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Answer» 19/4=4.75now as a percentage=4.75×100=475% |
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| 50. |
5/4 as a percent is..... |
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Answer» 5/4*100 125 percentage solve it |
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