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. |
show that 25,35,49 are in continued proportion |
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| 2. |
न्पकण लहर: रर7कएपखनन कट ८५००५~1 6o |
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Answer» Given : 25x² + 36y² + 60xy Compare with ( a+b)² = a² + b² + 2ab (5x)² + (6y)² + 2 × (5x) × (6y) ( 5x + 6y)² Please hit like if you find my solution useful |
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| 3. |
8. The distance from Houston, Texas to CulpuChristi, Texas is 210 miles. If the ratio of miles toinches on a map is 2:0.25, how many inchesrepresent the distance from Houston to CorpusChristi?F. 262 inchesG. 26 inchesH. 52- inches105 inches |
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Answer» 2 miles=0.25inches1mile=.25/2210 mile=.25*210/2=26.25inches |
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| 4. |
is side 25.4 cm Calculate its area in square inches. |
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Answer» area of sqaure is side × sideso here side is 25.4cm 1 centimetre= 0.394 inchso side in inch is 25.4 cm = 25.4 × 0.394 inch = 10.0076 inchso area is 10.0076² inch² = 100.15 inch² |
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| 5. |
2. Zach creates a rectangle with an area of 6 square inches. Luke makes arectangle with an area of 6 square centimeters. Do the two rectangleshave the same area? Why or why not? |
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Answer» no,because area of both rectangle are not same No, the areas are not the same. Why?1 square inch = 6.4516 square centimeters6 square inches = 38.7096 square centimetersZach's rectangle is bigger. thank you guys |
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| 6. |
हि न 6o Teoncoes:of polapss dFeg skl s |
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Answer» By hit and trailput X=1 the result is zerosince 1 is a zero of x³-7x+6 (x-1)is the factor of x³-7x+6 so if we divide x³-7x+6 with (x-1) then we will get x²+x-6 so we can write x³-7x+6 as (x-1)(x²+x-6) =(x-1)(x²+3x-2x-6) =(x-1)(x(x+3)-2(x+3))=(x-1)(x-2)(x+3)so the other zeros are 2 and -3 |
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| 7. |
4 m60 m40 mam |
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Answer» The area of one unshaded rectangle is length = (100-4)/2 = 48mbreath = (40-4)/2 = 18 m so area of one unshaded rectangle = 48*18 for 4 unshaded areas it will be = 4*(48)*(18) =3456m² now area of whole bigger rectangle = 100*40 = 4000 m² so, area of shaded portion = 4000-3456m² = 544m² it is wrong ans is 624cm2 how |
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| 8. |
Δ ABC and Δ DBC are two isosceles triangles onthe same base BC and vertices A and D are on thesame side of BC (see Fig. 7.39). If AD is extendedto intersect BC at P, show that1.(ii) ΔΑΒΡ ΔACP(iii) AP bisects A as well as D.(iv) AP is the perpendicular bisector of BC. |
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| 9. |
question number (1).7! ka mam nikale. |
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Answer» 1*2*3*4*5*6*7=5040 is the best answer |
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| 10. |
\frac{5 \ln \omega+\cos \infty}{\sin \theta \cos \infty}=7 |
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| 11. |
N14.)A 1.2 m tall girl spots a balloon movingwith the wind in a horizontal line at aheight of 88.2 m from the ground. Theangle of elevation of the balloon from88.2 mthe eyes of the girl at any instant is60° After some time, the angle of60elevation reduces to 30° (see Fig. 9.13). 1305Find the distance travelled by theballoon during the interval.Fig. 9.13ndine at the top of the tower |
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| 12. |
\left. \begin{array} { l } { f ( x ) = \operatorname { log } _ { [ x + \frac { 1 } { 2 } ] } | x ^ { 2 } - 5 x + 6 | \text { is } } \\ { [ \frac { 3 } { 2 } , 2 ) \cup ( 2,3 ) \cup ( 3 , \infty ) } \\ { ( b ) [ \frac { 3 } { 2 } , \infty ) } \\ { ( \frac { 1 } { 2 } , \infty ) } \\ { ( c ) [ \frac { 1 } { 2 } , \infty ) } \end{array} \right. |
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Answer» For log function , the domain should be such that the base should be 0 , or 1 and the number should > 0 [x+1/2] .. is the greatest integer function.. and for this function not to equal will 0 or 1 The minimum value of [x+1/2] = 2 => X +1/2 ≥2 => x ≥ 2-1/2 ≥ 3/2.... also.=> |x²-5x+6| ≠ 0=> |(x-2)(x-3)| ≠ 0 so, 2 and 3 should also be excluded from the domain. The final domain will be [3/2) U (2,3) U (3,∞) option A |
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| 13. |
A Force of 10N causes a displacement of 2m in a body in its own direction. calculate the work done by force |
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Answer» Work done= Force× Displacement=10×2 = 20 J. |
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| 14. |
A fish tank, with no top, is made of glass. Howmany square inches of glass was needed tobuild the tank if its length is 13 inches, widthis 8 inches, and height is 6 inches? |
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Answer» Given,Length l = 13 inches, Width b = 8 inches, Height h = 6 inches Then required surface area of fish tank= 2(l*h + b*h) + l*b= 2(13*6 + 8*6) + 13*8= 2(78 + 48) + 104= 2*126 + 104= 256 + 104= 360 sq inch |
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| 15. |
4. A fish tank can be filled in 10 minutes using both pumps A and B simultaneously. However,pump B can pump water in or out at the same rate. If pump B is inadvertently run in reverse,then the tank will be filled in 30 minutes. How long would it take each pump to fill the tank byitself ? (Use Cramer's rule to solve the problem). |
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Answer» Let Say A alone take = A mins Then tank filled by A in 1 min = 1/A Tank filled by A & B together in 1 min = 1/10 tank filled by B alone in 1 Min = 1/10 - 1/A = (A-10)/10A if B id reversed then both takes 30 min means tank filled in 1 min = 1/10 1/A - (A-10)/10A = 1/30 multiplying by 30A both sides => 30 - (3A-30) = A => 60 = 4A => A = 15 |
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| 16. |
The sumof four consecutive numbers in an AP is 32 and the ratof the first and the last term to the product of two middle terms is 7:1the numbers.and the ratio of the product5: Find |
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Answer» Let the four consecutive numbers in AP be (a - 3d), (a - d), (a + d) and (a + 3d)So, according to the question.a-3d + a - d + a + d + a + 3d = 324a = 32a = 32/4a = 8 ......(1)Now, (a - 3d)(a + 3d)/(a - d)(a + d) = 7/1515(a² - 9d²) = 7(a² - d²)15a² - 135d² = 7a² - 7d²15a² - 7a² = 135d² - 7d² 8a² = 128d²Putting the value of a = 8 in above we get.8(8)² = 128d²128d² = 512d² = 512/128d² = 4d = 2So, the four consecutive numbers are 8 - (3*2)8 - 6 = 28 - 2 = 68 + 2 = 108 + (3*2)8 + 6 = 14Four consecutive numbers are 2, 6, 10 and 14 |
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| 17. |
Q2. A 1.2 m tall girl spots a balloon moving with horizontal line at the height of88.2m from the ground. The angle of elevation of the balloon from the eyes of thegirl at any instant is 60°. After sometime the angle of elevation reduces to 30°Find the distance travelled by the balloon during this interval. |
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Answer» Thank you |
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| 18. |
02. A 1.2 m tall girl spots a balloon moving with horizontal line at the height of88.2m from the ground. The angle of elevation of the balloon from the eyes of thegirl at any instant is 60°. After sometime the angle of elevation reduces to 30Find the distance travelled by the balloon during this interval. |
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Answer» tq |
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| 19. |
8. In Fig. 8.43, prove that AP bisects 4BAC.Fig. 8.43 |
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Answer» Join APNow in triangle APN and APMAP is common hypotneseangle ANP and AMP is 90 And PN is equal To PM (given)So by RHS rule both are congurenttherefore by CPCT angle PAM and PAN are equal so AP bisect angle A |
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| 20. |
(2)What kind of angles 'a' and 'b' are ?CD Find 4BACO D |
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| 21. |
35. A 1.2m tall girl spots a balloon on the eve of Independence Day,mwind in a horizontal live at a height of 88.2 m from the ground. Theof the balloon from the of the girl at an instant is 60°.After some tinelevation reduces to 30°. Find the distance travelled by the ballon. S5.7. |
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| 22. |
\operatorname { log } \frac { 75 } { 16 } - 2 \operatorname { log } \frac { 5 } { 9 } + \operatorname { log } \frac { 32 } { 243 } = \operatorname { log } 2 |
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| 23. |
( \text { iii } \operatorname { log } \frac { 75 } { 16 } - 2 \operatorname { log } \frac { 5 } { 9 } + \operatorname { log } \frac { 32 } { 243 } = \operatorname { log } 2 |
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| 24. |
perimeter of a triangle is 28cm. If the length is 5/2 times its breadth find the length and breadth of the trianell |
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Answer» I am assuming in place of triangle it should be Reactangle in question. Given, Perimeter of Reactangle = 28 cm Let breadth of Reactangle = xThen length of Reactangle = 5x/2 Perimeter of Reactangle= 2(length + breadth) 28 = 2(5x/2 + x)14 = 7x/27x = 28x = 28/7 = 4 Therefore,Length of Reactangle= 5*4/2 = 10 cmBreadth of Reactangle = 4 cm |
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| 25. |
The number of quarters in 7 1/2are |
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Answer» 1 whole contains 4 quartersand 1/2 contains 2 quartershence7 wholes contains 7*4=28 quarters28+2=30quarters |
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| 26. |
7. A cuboidal fish tank has a length of 30 cm, a breadth of 20 cm and a height of 20 cmThe tank is placed on a horizontal table and it is three-quarters full of water. Find thearea of the tank which is in contact with water. |
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Answer» Area of base=600cm2Perimeter of base =2(l+b)=100cmThree quarters is filled with water =>Up to aheight of 15 cm=>Area of tank in contact with the water=Perimeter of base × height of water column+area of base=100 × 15×600=2100cm2 |
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| 27. |
cutive positive integers is 306. We need to find theThe nroduct of their ages (in years(ii) The product of twointegers.inent age |
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Answer» Let two consecutive numbers are x and (x + 1) A/C to question,product of x and (x + 1) = 306 ⇒x(x + 1) = 306 ⇒x² + x - 306 = 0⇒ x² + 18x - 17x - 306 = 0⇒x(x + 18) - 17(x + 18) = 0⇒(x + 18)(x - 17) = 0⇒ x = 17 and -18 Hence, numbers are x = 17 and (x +1) = 18 please like my answer if you find it useful |
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| 28. |
1.Answer the following questions by selecting the appropriate alternative(a) A bill of exchange is an acknowledgement of(i) debt(ii) goods received(iii) credit extended(iv) none of these |
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Answer» 1. debtbecouse its a one tips of debt, banker will gave this |
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| 29. |
The sumof three cons ecutiv-multi pais of 3 is 22-find the number |
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Answer» but answer is 21,24,27👈🙂✍️✍️ |
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| 30. |
ct a AABC if AB 3.8 cm, AC 5.2 cm and <BAC 60Cons |
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| 31. |
3e (OR)AB+CD-AD+BCAP B |
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Answer» Step-by-step explanation:to prove: AB+CD=AD+BC Proof : AP=AS PB=BQ CQ=CR RD=DS (the length of tangent drawn from an external point to a circle are equal) AP+PB+RD+CR=AS+BQ+DS+CQ =>AB+CD=AD+BC Hence proved |
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| 32. |
using Euclid's division algorithm to find H.C.F of 726 and 275 |
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| 33. |
18.A quadrlateral ABCD is drawn to circumscribe a circle. Prove that: AB + CD -AD + BC |
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| 34. |
\int \cosec x(\cosec x+\cot x) d x |
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| 35. |
Use Euclid's Division Algorithm to find the HCF of 726 and 275. |
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| 36. |
+-+-= 9, find the value of x4 +4. |
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Answer» thanksss |
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| 37. |
Log(x+3)+log(x-3) =log(27) |
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Answer» thank u |
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| 38. |
: 5 \operatorname log 3 - \operatorname log 9 = \operatorname log 27 |
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Answer» 5 log 3 - log 9 5 log 3 - log 3² 5 log 3 - 2 log 3 3 log 3 log 3³ log 27 |
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| 39. |
In the given figure prove that:YZ-PZ. |
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| 40. |
45. Evaluate:log 8xlog9() log 27 |
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Answer» Please hit the like button if this helped you |
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| 41. |
In the given figure, prove that x = a + B+2.Qoc |
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| 42. |
Q+) in the given figure prove thatAB + Be + EBDE = ABA |
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| 43. |
5.In the given figure, prove that(i) Î ACB Î ECD(ii) AB ED |
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| 44. |
H.CF. (306, 657)-,Rtap (275 60)= 225 Ă |
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| 45. |
OR = 1 PRQ in the given figure. Prove that IPOs-ERTRC |
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| 46. |
Aquadrilateral ABCD is drawn to circumscribe a circle in the given figure. Prove that:AB + CD AD BC |
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| 47. |
(x) (-275)/(-25) |
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| 48. |
दe 1o ) iklD ३ 8०2 है डक उन इक काना मे tor + है ; 7 )lहक... o दि |
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| 49. |
इक थक हर हा ८८2 +4.) J |
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| 50. |
4 2 1526 हर है कुपट गए आकर इक डिक 21910: कि 06।+ लक लव / 39 (i PR |
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Answer» उसका पृष्ठ है= (2a)^2*6= 24a^2 cm^2 |
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