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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. |
10: If O'be the origin and Pox, y) and Qx,y2)then OP.OO sin/POOEX. |
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Answer» <POQ=90°sin <POQ=sin90°=1so answer is OP.OQ Tqq Meera what r u studying...? |
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| 2. |
In Fig. 6. . Ray OR isperpendicular to line Petween rays OP and OR. Prove that27, POO is a lineQ. OS is another ray lyingZROS ZQOS POS).2 |
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| 3. |
4ab + 8a-b- 2 |
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Answer» 4ab+8a-b-2this will not be solved further because these are not like terms |
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| 4. |
. In the given figure, BA is perpendicular to AC, DE is perpendicular to DF such that BEC. Show that ABC is congruent to ΔDEF |
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Answer» In ∆ ABC and ∆ DEFAB = DEBAC = FDE ( 90°)BC= EF ( as given BF = EC adding FC on both sides gives BC = =EC)So, by RHS rule, ∆ ABC and ∆ DEF |
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| 5. |
If a+b is perpendicular to b and a+2b isperpendicular to a then |
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| 6. |
(4ab-3) (4ab+2) |
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Answer» (4ab - 3) ( 4ab + 2) (4ab)² + 8ab - 12ab - 6 16(ab)² - 4ab - 6 |
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| 7. |
(4ab -3) (4ab+2) |
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Answer» (4ab-3)×(4ab+2)=4ab×(4ab+2)-3×(4ab+2)=16a²b²+8ab-12ab-6=16a²b²-4ab-6 ans. (2x-5) - (2x+5) +5 |
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| 8. |
1.If the roots of the equation bx + cx + a = O be imaginary, then for all real val3b?X + 6bcx + 2c isde imaginary, then for all real values of x, the expression(A) Less than 4ab(B) Greater than-4ab(C) Less than -4ab(D) Greater than 4ab |
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Answer» right answer is (d) greater than 4ab |
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| 9. |
. If a-van and b # v2 -1, then find the value of a2 + b2-4ab.v2t1 and b2, then find the value of a+82-4ab,V2-1 |
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| 10. |
12.Find the values of the angles.x y. andz in each of the following:55°4025° |
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| 11. |
(a-b)²+4ab |
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Answer» (a-b) ²+4ab a²-2ab+b²+4aba²+2ab+b²answer |
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| 12. |
हि. हैana कक ंo iy |
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Answer» 252 = 180 x 1 + 72 180 = 72 x 2 + 36 72 = 36 x 2 + 0 Therefore 36 is the HCF of the three no.s You always have to to take the HCF of the two smaller no.s Like my answer if you find it useful! |
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| 13. |
anA t |
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| 14. |
25.If X1, X2,that (x, -9) 124 andvalue of mean isA. 20.27B. 21.23C. 21.64D. 22.23E. of these, xk are k values of variable x such(x, -13) 80, then thei 1 |
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| 15. |
actorize 4ab + 6ac + 2bx |
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Answer» 4ab + 6ac + 2bx + 3cx= 2a(2b + 3c) + x(2b + 3c)= (2a + x)(2b + 3c) Factors are (2a + x) and (2b + 3c) |
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| 16. |
n a LPP, the linear function which has to be maximized or minimized is called aa. Feasiblec. Perpendicularb. Objectived. of these |
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Answer» In a LPP, the linear function whuch has to be maximized or minimized is called a linear objective function. |
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| 17. |
betweell the zcrocs u23. Solve by using the formula. 212-7x+3-0ntice 2019 |
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Answer» x=-b+-√b^2-4ac/2ax=7+-√49-24/4x=7+-√25/4x=7+-5/4x=1/2,3 |
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| 18. |
. If three dice are thrown simultaneously once, the probability that on all the three dice primenumber occur is,a) 0.125b) 0.0125c) 0,0251d) 0.333 |
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Answer» the right answer of this question is a... A) 0.125 is the answer |
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| 19. |
in60° +sin30° _ tan 60° + tan 45°in60°— sin30° tan 60°— tan 45° |
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| 20. |
ERCISE 4.41. The price of 26 tables is R 12350. Find the price of one table.hors is 54255. If one of them is 15, fin |
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Answer» Price of 26 tables = 12350Price of one table = 12350/26 = 475 Thus price of one table = RS 475 |
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| 21. |
anA+SecA-1 _1+SinA26. âanA-SecAtl CosA1 1 1 |
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Answer» (tanA+secA-1)/(tanA-secA+1)=(1+sinA)/cos A multiply LHS by cosA /cosA to get(sinA+1-cosA) / (sinA-1+cosA) multiply again by cosA/cosA to get(sinA.cosA+cosA-cos^2A) / cosA(sinA-1+cosA) = ( cosA(1+sinA) - (1-sin^2A) ) / cosA(sinA-1+cosA)= ( cosA(1+sinA) - (1+sinA)(1-sinA) ) / cosA(sinA-1+cosA)= ( (1+sinA)(cosA-1+sinA) ) / cosA(sinA-1+cosA)= (1+sinA)/cosA Like my answer if you find it useful! |
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| 22. |
1.100If the compound interest on a sum for 2 years at the rate of 12(1/29% per annum is Rs 510, the SI on thesame sum of the same rate for same period of time is:2. R$4501. Rs4003. R-4604. Rs480 5. of theseto nort and |
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| 23. |
tan(45^circ - A)*tan(45^circ %2B A)=1 |
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| 24. |
nd the greatest number of five digits which is exactly divisibly by 36and 60 |
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| 25. |
nd the median of the following variable values25, 34, 33, 13, 20, 26, 36, 28,1Fi1.9, 34 |
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| 26. |
ana |
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| 27. |
(2) From the figure, decide whether line l130°is parallel to line m or not. Give reason.50°2t |
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| 28. |
(2) From the figure, decide whether line l130°is parallel to line m or not. Give reason.50° |
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| 29. |
ost of 2 tables is equal to the cost of 5 chairs.If the difference of the cost of one table and onechair is Rs. 1,200, then the cost of one chair is ?(A) Rs. 500(C) Rs. 800(E) of these(B) Rs. 400(D) Rs. 600 |
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| 30. |
9. If logsin45 a tan 45 then find theASavalue of 'aSol. |
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| 31. |
9, inthegivenfigure,BD-8cm,<ABC =90°andAD=4cm,BDLAC. Iffind CD |
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| 32. |
4. By selling a chair for Rs 572, a man gains 30%. The cost price of the chair isa) Rs 340b) Rs 400c) Rs 440d) none |
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| 33. |
is SSA a criterion for congruence of triangle? |
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Answer» No it is not criterion as two triangle have two same side one angle equal, but we have alter the other angle that contrdicts congurence no there is not a rule of SSA |
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| 34. |
If the selling price of an article is Rs 460 androfit unit is 15. then find the COSTal Rs.450by Rs 400c) Rs.500d) Rs.800 |
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Answer» answer will be exactly b |
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| 35. |
By selling a chair for Rs 572,a man gains 30%. The cost price of the chair is :(d) of these(a) Rs 340(b) Rs 400(c) Rs 440 |
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Answer» profit % =30so we will use this formulaCP= (100/100+gain%)*sp CP= (100/130)*572440 rupees is the cost price |
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| 36. |
The volume of a cylinder is 1232 cm2 and the circumference of its base is 44 cm. Ifit is open at one end, what is its total surface area?(Use Ď-22/7) |
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| 37. |
Find the volume of a right circular cylinder if(i) radius of its base(ii) area of basejiy circumference of base1.32m,-7cm, height 1.5 dm154cm, height 1.5cm25 cmheight |
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| 38. |
2. Find the total surface area and volume of the cylinderif(a) Circumference of the base - 88 cm and height -25 cm(b) Area of the base 616 cm2 and height 3 m |
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| 39. |
7. The radius and height of a cylinder are in the ratio 2: 3. If the volume of the cylinder is1617 Cu.cm, find its height and its total surface area. Use22/7 |
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| 40. |
हल गरेजाळी काटतएन : प्रश्नवाचक चिह्न के स्थान परकौन सी संख्या आएगी?1472725838369?73228 |
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Answer» 4×7-1=27, 5×8-2, 6×9-3=51 परसंवाचक चिह्न के स्थान पर 51 रहेगा 4*7-1=27 then 6*9-3=51 |
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| 41. |
The base of an isoscelestriangle is 16cm, if itscircumference is 36cm, thenfind the area. |
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Answer» bahut lengthy solution h |
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| 42. |
The 3rd and 4th term of an AP is 12. What are the 2nd and 5th term |
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Answer» Since 3rd and 4th terms are same i.e. 12 therefore d=0 thus, 2nd and 5th terms are also 12 |
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| 43. |
.The circumference of the base of a right circular cylinder is 314 cm. Find its volume if its21 cm. |
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Answer» Dobara bhaj Da |
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| 44. |
24. The circumference of the base of a cylinder is 8cm & its height is 15cm. Find the volume of theeylinder |
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Answer» Plzz full ans |
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| 45. |
State the congruence rule by which ΔABD and ACD are congruent. |
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Answer» please can you answer some more questions posted by me |
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| 46. |
ide whether the SSS congruence is true with the following figures. Give reasonsDecide w |
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| 47. |
24. The circumference of the base of a cylder is 88cm & its height is 15cm. Find the volume of thecylinder. |
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| 48. |
C) Sides and anglesD) Sides, anges49. In the given figure, AABC ACDA bycongruence criterion25A) SASB) ASAC) sss D) RHSS |
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Answer» This is example of the criterion ASA when I.e, ang BAC = 50 angDCA = 50 ang BCA = 25. ang DAC = 25 and side AC is common for both. |
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| 49. |
1. In the figure, canyou use ASA Acongruence ruleand conclude athat AAOCABOD ? |
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Answer» angle AOC=angle BOD=30° (vertically opposite angle)angle ACO=angle BDO=70°AC=BD=3hence ∆AOC is congruent to ∆BOD by ASA congruence rule. |
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| 50. |
(1) If P is the midpoint of seg AB and AB7 cm, find AP. |
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Answer» Ab =total lineab=7p is midpointAp =half of segAp =7/2ap=3.5 |
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