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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. |
5. The area of a circle is 616 cm. Find its circumference.6. The area of a circle is 1386 m². Find its circumference. |
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| 2. |
6. If tan + sin = mthen show that m?and tan 8-sinB =n,n? = 4 mm. |
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| 3. |
1. A chord of a circle of radius 10cm. subtends a right angle at the centre. Find the area ofthe corresponding: (useT-3.14)ii. Major segment |
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| 4. |
The ratio of circumference and area of a circle is 2:7. Find its circumference. |
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| 5. |
Thecircumference of a circle exceeds its diameter by 45 cm. Find thecircumference of the circle. |
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| 6. |
One of the vertices of a square is origin and adjacent sides ofthe square are coincident with positive axes. If side is 5 thenwhich will not be its one of the vertex |
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| 7. |
22. A sector of 120° cut out from a circle has3an area of 9sq.cm. What is the radiof the circle?(A) 3 cm(C) 3.5 cmus(B) 2.5 cm(D) 3.6 cm |
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Answer» area of a sector of circle = πr² x angle / 360 = 3.14 x r² x 120 / 360 = 66/7= 3.14 x r² x 1/3 = 66/7= 3.14 x r² x 0.33 = 66/71.0362 r² = 66/7and , r² = 9/1.0362r² = 9r = approx 3 cm |
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| 8. |
ow let us take some examples.1: Prove that in two concentric circles, the chord of thelarger circle, which touches the smaller circle, isisected at the point of contact. |
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Answer» Please hit the like button if this helped you |
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| 9. |
Let us lake suime examples.Bxample 1 : Prove that in two concentric circles,the chord of the larger circle, which touches thealler circle, is bisected at the point of contact.sm |
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| 10. |
Now let us take some exailipi1: Prove that in two concentric circles, the chord of theEx 3: Plarger circle, which touches the smaller circle, isbisected at the point of contact.tvo |
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Answer» Please hit the like button if this helped you |
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| 11. |
575 \times 1288 |
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Answer» This is the answer and please see also |
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| 12. |
teger2"+2915320+1 – 2rational numbertegerional number?Flow- |
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Answer» a)Is correct answer |
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| 13. |
7. State whether 10.064in the form Pis a rational or an irrational number. If it is a rational number, express itp and q are integers and q0 |
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| 14. |
291 - स्वीडन फिटा + इस्फा + 2 *फ लि; अादफ अंडा रू अन्यबिनिन दी |
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Answer» 4x²+9y²+16z²+12xy -24yz -16xz = (2x)²+(3y)²+(4z)²+2(2)(3)xy -2(3)(4)yz -2(2x)(4z) = (2x + 3y - 4z)(2x + 3y - 4z) Like my answer if you find it useful! |
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| 15. |
4 + 8 + 12 + \ldots + 4 n = 2 n ( n + 1 ) |
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Answer» prove with mathematical induction |
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| 16. |
(a) 2616. If the sum of n terms of an A.P.is 291 + 5n, then its nth term isc) 49 + 3 |
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| 17. |
10.What is Interpolation? |
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Answer» Interpolation,is the determination or estimation of the value of f(x), or a function of x, from certain known values of the function, it is part of numerical Analysis |
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| 18. |
CBSE 2006C, 2013]56. A moving boat is observed from the top of a 150 m high cliff moving away from thecliff. The angle of depression of the boat changes from 60째 to 45째 in 2 minutes. Find[CBSE 2017]the speed of the boat in m/h. |
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| 19. |
hagleIf two adjacent vertices of a parallelogram are (3, 2) and (-1,0) and thediagonals intersect at (2,-5) then find the coordinates of the other twovertices.CBSE 2017] |
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| 20. |
291 Find the greatest integer that could- Meplace the D in order to makeА фемолили ? ?7-8) + | 5-2.1-D =4 ture |
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Answer» 7.......8+3-7....this is right answer....because in modulus function -ve value become +vr |
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| 21. |
triangle.If two adjacent vertices of a parallelogram are (3, 2) and (-1, 0) and thediagonals intersect at (2, -5) then find the coordinates of the other twovertices.CBSE 2017) |
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| 22. |
in which year was the digital india campaign launched? |
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Answer» Launched on 1 July 2015 by IndianPrime MinisterNarendra Modi, it is both enabler and beneficiary of other key Government of India schemes, such asBharatNet,Make in India,Startup IndiaandStandup India,industrial corridors,Bharatmala,Sagarmala,dedicated freight corridors,UDAN-RCSand E-Kranti. Digital Indiais a campaign launched by theGovernment of Indiato ensure the Government's services are made available to citizens electronically by improved online infrastructure and by increasing Internet connectivity or by making the country digitally empowered in the field of technology. digital India campaign was launched on 2015 2015 2015 is the right answer |
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| 23. |
Write weather the rational number. 7÷25 will have terminating or non terminating expansion |
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Answer» 7÷25 = 0.28 , so there are finite numbers of digits after decimal so it is terminating |
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| 24. |
225 The product of two integers 1288. If one of theintegers is -16, find the other |
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Answer» 288 × Other number = - 16The other number = 288/(-16) = - 18 |
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| 25. |
State whether rational number 2/11 is a terminating or non-terminating recurring type. |
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Answer» 2/11 = 0.181818....So, it is non terminating recurring |
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| 26. |
In A ABC, if BC = AB and Z B = 80°Find the measure of 2A.o f the phare whose rading is 7 cm80° |
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| 27. |
44. Ag,CrO, तथा AgBr का विलेयता गुणनफल स्थिरांकक्रमशः 1.1 x 10" तथा 5.0 x 10" है। उनके संतप्तविलयन की मोलरता का अनुपात - - कीजिए। |
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Answer» Ag4 Br *5.5*19 is answee v1/v2=n(r1),2h1/n(r2)2h2=(r1/r2) 2 (25/64=(16/25) (25/64=1/4 |
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| 28. |
6. In the given figure, if <AOB-80 find <ACB. |
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Answer» The traingle have same base so ,Angle AOB = 2 × angle ACB 80 /2 = angle ACBangle ACB = 40° |
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| 29. |
Appropriate interpolation formula |
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Answer» Interpolationis a method of finding new values for any function using the given set of values. The unknown value at a particular point can be found using many interpolation formula's. If the new value has to be found from the two given points then the linear interpolation formula is used whereas if 'n' set of numbers are available the new value is found using the Lagrange's interpolation formula. |
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| 30. |
44.If3x + 5 = 6-7x, then x =b) 62.d)a)c)10 |
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Answer» Given:3x+5=6-7x3x+7x=6-510x=1x=1/10 Ans |
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| 31. |
4 सेमी,एक बॉक्स की लम्बाई 15 सेमी, चौड़ाई 10 सेमी. तथा ऊँचाई 12 सेमी. है ।आयतन ज्ञात कीजिए।नि के,T T e e B A e - |
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| 32. |
NCERT EXEMPLAR]Fig. 13.111, the side of square is 28 cm, and radius of each circle is half ofes. Find[CBSE 20172. In the giventhe length of the side of the square where O and o' arethe area of shaded region.centres of the circlO'Fig. 13.111 |
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Answer» second method |
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| 33. |
s. In the adjoining figure, O is the centre of the circle. IfLACB 40°, find LOAB.(NCERT Exemplar) |
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| 34. |
A.3. In the adjoining figure, O is the centre of the circle. IfLABC45°, then prove that OA 1 OC.NCERT Exemplar)0 |
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| 35. |
2. Volume of a Cuboid is 900cm3. The area of its base is 100cm2, its height iscm. |
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Answer» Volume of cubiod = LBHVolume of cubiod = 900 cm³Given area of base = LB = 100 cm²LBH = 900 100 × H = 900H = 900/100 = 9H = 9 |
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| 36. |
Volume of a Cuboid is 900cm3. The area of its base is 100cm2, its height iscm. |
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Answer» l*b*h=900l*b=100so h= 900/100 = 9 cm |
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| 37. |
g = (Z -५५)५८vz-uC = (UZ)I— |
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Answer» Thank u very much |
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| 38. |
2. Express 225 vas product of poime fastos |
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Answer» Product of prime225 = 15² = 3² × 5² |
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| 39. |
classify the rational numbers as terminating or non terminating:-11/17 |
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Answer» -11/17 The denominator cannot be expressed as powers of 2^m 5^n. Therefore, it is a non-terminating decimal. |
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| 40. |
in given figare, findarea of shaded postion. IfABCD is a square of side 14 cm and APD and BPC are two semicircleA14 cmDe 14 cm → C |
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| 41. |
2. A right triangle, whose sides are 3 cm and 4 cm (other than hypotenuse) is made torevolve about its hypotenuse. Find the volume and surface area of the double cone soformed. (Choose value of Tt as found appropriate.) |
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| 42. |
81 + 91 |
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Answer» 172 is the right answer. 172is answer of given question |
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| 43. |
91 + 20 = |
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Answer» 91+20 = 111 is the answer the answer for this is 111 111 is the corret answer |
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| 44. |
6. The length of the diagonal of a square is 20 cm. Its arca is(a) 400 cm2 (b) 200 cm2 (c) 300 cm2 (d) 2-/100cm2 |
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| 45. |
हे. 15) डा 300 cos60° — tan’45° T 236 BoBEREWO. |
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| 46. |
1000ADD THe FOLOG(236)2 |
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| 47. |
( \frac { - 3 } { 2 } \times \frac { 4 } { 5 } ) + ( \frac { 9 } { 5 } \times \frac { - 10 } { 3 } ) - ( \frac { 1 } { 2 } \times \frac { 3 } { 4 } ) |
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| 48. |
236Classily as rational or locational vas343 |
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Answer» V28/V343= V4× 7/V7^3=2V7/7V7=2/7 answer is 2/7 it is a rational number |
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| 49. |
estimate the difference between 527 and 236 mm |
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Answer» difference between 527 and 236mm is 527-236291mm |
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| 50. |
1.There arenumber of rational numbers between any two non equal rational numbers. |
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Answer» There are infinite...... this answer is in infinity the answer is infinite infinite is the correct answer of the given question |
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