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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. |
Convert each part of the ratio to percentage:(c(b) 2:3:5 |
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Answer» thanks |
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| 2. |
second number. 72602) If b then a3) Convert the followine ratio i |
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Answer» If a/b=9/4 Reciprocating both sides, b/a=4/9 |
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| 3. |
Convert 15% into fraction |
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Answer» 15% to fraction15/100 = 0.15 3/20 |
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| 4. |
4. Sanjay borrowed12,800 at the rate of 6-% per annum at simple interest. On the same day, he lent4it to Rajesh at the same rate but compounded annually. What does Sanjay gain at the end of 2 years? |
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Answer» 50.00 |
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| 5. |
4.ABCD is a trapezium in which AB IDC. BD is a diagonal and E is the mid-point of AA line is drawn through E parallel to AB intersecting BC at F(see Fig. 8.30), ShowF is the mid-point of BCFig. 8.30 |
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| 6. |
4. ABCD is a trapezium in which AB DC, BD is a diagonal and E is the mid-point of ADA line is drawn through E parallel to AB intersecting BC at F (see Fig. 8.30). Show thatF is the mid-point of BCFig. 8.30 |
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| 7. |
at BCIEF Vertices A. B and C are joined toin D. Eand F espectively (see Fig 822 |
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| 8. |
If the overall percentage of success in an exam is 60, what is the probability that out of a group of4 students, at least one has passed? |
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| 9. |
riample 8.Prove that: rin i in rl! r nrfin 1)! |
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| 10. |
3. A sheet of paper has dimensions 60 cm × 40 cm. A strip 5 cm wide is cut from it all around. Find thearea of the strip and the area of the remaining sheet.1. The area ofanaoriculi |
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Answer» total area of the paper = 60*40 = 2400cm². now when 5cm strip is cut.. the length and width are. 60-(5+5) = 50cm and 40-(5+5) = 30cm so, new area of the remaining Sheet = 50*30 = 1500cm² so, area of strip is = 2400-1500 = 900cm². |
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| 11. |
2 m wide runs glue ll,Hint. Let the length 2 x m and the breadth x m.& A school has a hall which is 22 m long and 15.5 m broad. A carpet is laid inside the halld thearound a margin of 75 cm from the walls. Find the area of the carpet anarea of the strip left uncovered. If the width of the carpet is 82 cm. find its cost at the rate o60 per m.I I's surrounded by a path 2.5 m wide. If the area of the path is 165 ml 5am-wide path |
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| 12. |
2x/x-4+2x-5/x-3=25/3 |
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| 13. |
Each side of a square flower bed is 2 m 80 cm along.It is extended by digging a strip 30 cm wide all around it.Find the area of the enlarged flower bed and also the increase in the area of the flower bed. |
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| 14. |
ample 2: Sanjay earns8985 a month. Howmuch does he earn in a year? |
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Answer» 1 year=12 months1 month=898512months=12×8985=₹ 1,07,820 in a year |
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| 15. |
convert ratio 15:20 into percentage |
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Answer» 15/20 × 100 = ? |
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| 16. |
35ample 2: Find an equivalent fraction ofwith denominator 8.40 |
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| 17. |
ice is 77 cm.1.65 km?e wheel of a car is 70 cm. How many revolutions will It make to trae |
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| 18. |
14. A number is increased by 20% and theesulting number is again increased by 20%What is the overall percentage increase inthe number? |
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| 19. |
ample 8. The age of A is five years more than that of B5 years ago, the ratio of their ages was 3 : 2. Findtheir present ages |
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| 20. |
√x+2√x+2√x+2√3x=x |
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Answer» x+6 (3x 2 ) 6 = 12xdjjddkdkdkdkdjfjfjfjgivjvjcjc 12 is the ans to your question 12 is the correct answer of the given question |
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| 21. |
- DividendIn this way, the division algorithm is verified.ampleits zeroes are 2 and -2e9: Find all the zeroes of2x4-3x3 + 6x-2, if you know that two of |
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Answer» 1 2 3 |
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| 22. |
ftrigonometric ratios of angles between 0rati+ gos 75° in terms7. Express sin 670+c0sand4s |
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| 23. |
to apply manures.mdthhe7. Each side of a square flower bed is 2 m 80 cm long. It is extended by digging a strip a0wide all around it. Find the area of the enlarged flower bed and also the increase in the are |
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| 24. |
side of a square bed is 3 m 80 cm long it is extended by digging a string 50 cm wide all around it find the area of the largest flower bed and also the increase in the area of flower bed |
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Answer» Each side of flower bed = 3.8 mArea = 3.8× 3.8Area of flower bed before extension= 14.44 sq mIf it is extended by digging a strip of 50 cm wide all around it, then the new side will be = 3.8 + 1.0 = 4.8 mArea of the flower bed after extension = 4.8× 4.8Area of enlarged flower bed = 23.04 sq mIncrease in the area of flower bed = 23.04 - 14.44= 8.6 sq m |
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| 25. |
5 The price of a fountain-pen is R 25.75 and theprice of a notebookis12.50. Which one is more costly and by how much? |
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Answer» fountain pen is more costly by RS 13.25 |
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| 26. |
2 -3x x-3-3 2x x+2 |
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| 27. |
16, (a) Wnd why?hich of the following ores can be concentrated by froth floatation methodFe203 ZnS, Al203123 |
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Answer» Galena (ZnS) is a sulphide ore. Galena is best concentrated by froth floatation method.Hence, only galena contains sulphide ion |
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| 28. |
ABCD is a trapezium in which ABIDC, BD is a diagonal and s4.and Ess theA line is drawn through E parallel to AB iatersecting BC at F (see Fig uF is the mid-point of BC. |
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| 29. |
Ovull dulu CTC. In D .TO) Two cross roads, each of width 5m, run at right angles through the centre of a rectangular park of length70m and breadth 45m and parallel to its sides. Find the area of the roads. Also find the coast ofconstructing the roads at the rate of Rs.-105 per m.. |
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| 30. |
the boundary of the park at the speed of 12 km/h and completes one row gminutes, then what is the area of the park?7 The ratio of the length and hreadth of a rectangular park is 5.4. A man iround in SA |
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| 31. |
22The equation= 1 represents an ellipse if+ |
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| 32. |
Express the following as ratios.a 6 kg to 10 kgb 50 km to 70 kmb 20 hours to 24 hourse 250 ml to 50 ml |
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Answer» 6/10=3/520/24=5/650/70=5/7250/50=5/1 |
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| 33. |
7Expressas a percentage20 |
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| 34. |
find the area bounded by the ellipse (x^2÷a^2)+(y^2÷b^2)=1, x =0 and x= ae where b^2 = a^2(1-e^2) |
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| 35. |
ample 2 Find the area enclosed by the ellipse\frac{x^{2}}{a^{2}}+\frac{y^{2}}{b^{2}}=1 |
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| 36. |
1. A rectangular park 70 m long and 50 m wide has asquare flower bed of side 40 m in the middle. Findthe area of the remaining park. |
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Answer» Length of park is 70 mbreadth is 50mso area will be length ×breadth=50×70=3500side of sq. flowerbed is 40 marea will be side ×side=40*40=1600now area of remaining park is 3500-1600=1900m I love. you jsksjhsgsgaysts |
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| 37. |
gth and breadth of a rectangular park is 5.4. A man is cyclingat the speed of 12 km/h and completes one round in 5.4minutes, then what is the area of the park? |
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| 38. |
ercise-1HDivide the given rati13, 214 7(a)by |
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Answer» (-13/14)/(2/7)=(-13/14)×(7/2)=-13/4 hit like if you find it useful |
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| 39. |
what do you mean by directrix of x-axis |
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Answer» Thedirectrixis perpendicular to theaxisof symmetry of a parabola and does not touch the parabola. If theaxisof symmetry of a parabola is vertical, thedirectrixis ahorizontalline . dp e tum ho kya? nice dp |
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| 40. |
उपयुक्त सर्वसमिकाओं को प्रयोग करके निम्नलिखित गुणनफल ज्ञात कीजिए,(i) (x+ 4) (x+10) (ii) (x+ 8) (x-10) (iii) (3x +4) 3x—3)(iv) (y²+3/2)(y²-3/2) (v) (3-2x)(3+2x) ; e o3हल. W) (3-20 ( |
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| 41. |
12. Find the roots of the quadratic equation:3 x 0,2.xr-2 |
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| 42. |
In this WFind all the zeroes of 2r-3-3x +6x-2, iof 2x-3x-3x x 2, if you know that two ofee and2 |
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| 43. |
2. Which of the following expressions are not polynomials?(a) +3x(d) 3x93/2 |
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Answer» Nice where is b ,d dogi do they are polynomial as the power of variable x is Integral values like 1,2 ,3 .... so on. so solve it in copy give please give |
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| 44. |
G wllsw 7 -3x-2 = 0 sy ws (RS g L 2 A eh amded w & |
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| 45. |
Solve the equations1. 2x + 1 = 9 |
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Answer» x=4 is the correct answer. x=4 is 2x+1=92x=9-12x=8x=8÷2x=4 2x+1=92x=9-12x=8x=8/2x=4 is the right answer 2x+1=9x=42x4+1=9 is a right answer 2(4)+1=9 is the right answer x=9 is the right answer 2x+1=92x=9-12x=8x=4. is the best answer. x=4 is correct answer 2x+1=92x=9-12x=8x=8/2x=4 2 X + 1 =9x= 42 multiply 4 + 1 2x=9-12x=8x=4Correct answer 2×+1=92×=9-12×=8×=8÷2×=4 x=4 it is right answer x = 4 answer is the correct 2x4+1=9 is the correct answ तुमने दो और एक को जोड़ दिया तिन में तीन का गुणा कर दिया 2x+1=92x=9-12x=8x=8/2x=4 is the correct answer 2x = 9+12x = 10x = 10/2x = 5 Ans x=4... is the best answer... 2x = 9 - 1x = 8 ÷ 2x = 4 x= 4 is correct answer 2x +1=92x=9_12x =8x=8/2x=4 2x=9-12x=8x=8 divided by 2x=4 2x + 1 =92x=9-1=8x=8/2=4 4 is the right answer 2x + 1 =9 2x = 9-12x = 8x = 8/2x = 4 ans x= 4 is the best answer 4 is your answer. this question 2x =9-1=2x=8= X=8/2 =X =4 X=4............. Is the right answer 2x =9-1 2x =8x = 4 2x +1=92x = 9- 12x=8x=8÷2x=4 x is equal to 4 is the right answer x=4 is correct answer X=4 is the best answer x =4 is the correct answer 2x+1=9so, 2x=9-12x=8x=8/2=4ans x = 2 × 4 + 1 = 9 x = 4 2x +1=9 2x=9-12x=8X=4 is correct answer 2 x 4 + 1 is equals to 9 X=4 will be your answer 2x+1=92x=9-12x=8x=8/4x=4 4 is the answer for this question 2×4+1=9 answer is the right answer x=4 is the correct answer x=4 is correct solution. 2 X + 1-1=9-1 here x=4 is the answer x is equal to 4 x is equal to x=4 is the best answer इसका उत्तर यह है तुमने दो में एक को जोड़ दिया और तीन का गुणा कर दिया X = 4 is the best answer of this question 2x = 9-12x = 8x = 8/2x = 4 2x +1=92x=9-12x=8x=8/2x=4 2x +1=92x=9-12x=8x=8/2x=4 2x+1=92x=9-12x=8x=8/2x=4 ANS.. the value of x is 4 correct 2x+1=92x=9+1x=10÷2x=5 x=4 is correct answer x=4 2into 4plus 1=9 2x + 1= 92x = 9 - 12x = 8x = 8/2x = 4is the right answer according to your question =2x=9-1. =2x=8. =X=8/2. =x=4. 2x+1=92x=9-12x=8x=8divide 2x=4 2x+1=92x=9-12x=88÷2xx=4 4x are correct answer 2 x=4 Answer x=4 is correct answer. 2X+1=92X=9-12x=8X=8/2X=4 X = 4 is the right answer 2x+1=92x=9-1 2x=8 x=8/2 x=4 2x=9-12x=8x=4...is the correct ans. 2x=9+12x=10=X10/2=5 2x=9-1=2x=8=X=8/2=4 is the ans 2x=9-12x=8X=8÷2X=4 1.). 2x+1=9 2x=9-1 2x=8 x=8/2 x=44 is the correct answer of this question. .x=9 is the correct answer the correct answer is x=4 X=4 is the right answer. 2x+1=9x=9-(2+1)x=9-3=6 2x+1=9x=9-1/2x=8/2=4 4 is right answer plz like to the answer is 4 okkkk x=4because 2x+1=92x=9-12x=8x=8/2x=4 answer =42x+1=92x=9-12x=8x=8/2x=4 2x=9-12x=8x=8÷2x=4 2x+1=92x=9-12x=8X=8/2X=4 X=4.......................... 2x +1=9 2x=9-1 x=8÷2=4 is the correct answer 2x+1=92x=9+12x=10x=10/2=5 answer is x=4 are correct X=4 is the correct answer x=4 is the correct answer. x=4is correct answer correct answer is x=4 x=4 is a correct answer answer this questions. is x=4 2x+1=92x=9-1x=8/2x=4 2x=8x=4 is the best answer. 2x= 9-1 2x=8 x=8/2 x=4 2x+1=92x=9-12x=8x=4 2x = 9 - 12x = 8 x= 8/2 x = 4 2x=9-12x=8x=8/2x=4Therefore, the answer is 4 X = 4 is the right answer x=4 is the correct answer h x =4 is answer of this |
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| 46. |
Vertex and the focus of a parabola are (-1, 1) and (2, 3) respectively. Find the equation of thedirectrix |
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| 47. |
Vertex and the focus of a parabola are (-1, 1) and (2, 3) respectively. Find theequation of the directrix |
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| 48. |
Express10 20as a rational number with denominator7-3035(v) -40 |
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| 49. |
Find the eccentricity, foci and latus rectum of the ellipse 9x2 + 16y2 144. |
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| 50. |
If the angle between the line joining end point of minor of an ellipse with its foci π/2 then the hethe eccentricity of the ellipse is(A) 1/2(B) 1/√2(C)√3/2(D) 1/2√2 |
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Answer» Equation of ellipse isx^2/a^2+y^2/b^2=1(a > b) Slope of BS=−b/ae=m1 Slope of BS'=b/ae=m2 Angle between BS and BS' is90° m1m2=−1 b^2=a^2e^2 a^2(1−e^2)=a^2e^2 b^2=a^2(1−e^2) 2e^2=1 e=1/√2 |
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