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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. |
66. The angles of a pentagon are x(x 20x+40, x 60 and(x +80). The smallest angle of the pentagon is: |
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Answer» The sum of the interior angles of a pentagon is 540Therefore ,x+x+20+x+40+x+60+x+80=5405x+200=5405x=340x=68Therefore the smallest angle of the pentagon = x = 68x is the smallest angle of the pentagon is x because all the other angles are greater than x. hit like if you find it useful |
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| 2. |
9. Ifin a hostel, there is enough rice to take careof 150 children for 21 days. How long willthis stock of rice last if 25 more children jointhe hostel and the daily consumption of ricedecreases from 125 grams to 100 grams perchild? |
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Answer» Rice consumed by 150 children in 21 days, per head 125 grams will be 150 * 21 * 125 = 393750 --------(1) Total students after new ones joined = 150 + 25 = 175 Consumption per head = 100 grams Let the rice lasts for x days Rice consumed by 175 children in x days, per head 100 grams will be 175 * 100 * x = 17500x -----------(2) Equating 1 and 2 393750 = 17500x x = 393750/17500 x = 22.5 Rice will last for 22.5 days ur solution is correct but this is a question of direct nd inverse variation so I need an answer accordingly |
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| 3. |
In the picture, the tangent to the circumcircleof a regular pentagon through a vertex ishown(4)culate the angle when the tangent makesCalwith the two sides of the pentagon throughthe point of contact. |
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Answer» thanks 🙏💕 |
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| 4. |
is12cm.Findthe18. The length of a metallic tube hs 1m, its thicknes is 1 cm and its inner diameterweight of the tube if the density of the metal is 7.7 grams per cubic cm. |
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| 5. |
3. How many decimetre' are equal to 1 metre?? |
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Answer» 1 decimeter square is equal to 0.01m² |
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| 6. |
Challengehe fenced on three sides, leaving a side of 20 cm uncovered. If the area ofthe field is 680 m, how many metre of fencing is required? |
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| 7. |
3613.5 2.564013 men can dig 104 metre long trench in one day. How many men shometre long trench in one day?be employed for digging 225on a day. Find thei0 m at a particula time |
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Answer» 13*104 = x*225 x = 13*104/225 x = 6 men |
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| 8. |
7. Kavita wants to put a lace border all around a rectangular table cover 6 m long and 4 mwide. How many metre of the lace is required by Kavita. |
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Answer» Solution:Length of lace required by Kavita = 20m Explanation:Length = 6mWidth = 4mLength of lace required = perimeter of rectangular table cover = 2(length + width) = 2(6 + 4) = 2 × 10 = 20m |
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| 9. |
e theet Teqtired to make 10 such capsl A bus stop is barricaded from the remaining part of the road, by using 50 hollowcones made of recycled cardboard. Each cone has a base diameter of 40 cm and heightheIm.If the outer side of each of the cones is to be painted and the cost of painting isper m, what will be the cost of painting ll these cones? (Use n 3,14 and takehe |
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| 10. |
Find the value of (729)0.16 x (27)08A. 3C. 27E. of theseB. 3V3D. 81 |
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Answer» (729)^0.16×(27)^0.18= (2.871)×(1.8098)=5.196=3 root 3. the answer is b |
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| 11. |
AB is a chord of a circle of radius 4.3 cm and P is apoint on AB which divides it into two parts in the ratio7:10. If P is 2.7 cm away from the centre O, find thelength of AB. |
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| 12. |
If the angle between two vectors of equal magnitude P is θ, the magnitude of the resultant vector is |
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Answer» Vectors P and Q have equal magnitude P and angle between them is Ф. Magnitude of vector P - Q = SqRoot[ P² + P² - 2 P P Cos Ф ] = √2 P SqRoot[ 1 - Cos Ф ] = √2 P SqRoot[ 2 Sin² Ф/2 ] = 2 P SinФ/2 |
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| 13. |
1. Find the measure of x and v in each of thefollowing figures.60°110 70 454aa)b)Fig. 10.23 |
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Answer» use exterior angle theoremso in a) x+60° = 110°x = 110° -60° = 50°b) y + 45° = 180° y = 180° - 45° = 135°x+70° = 135°x = 135° - 70° = 65° |
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| 14. |
5. Look at the following figures and write the fraction for its uncolored parts.0() |
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Answer» i) 1/4ii) 4/10iii)1/3 I)1/4ii)4/10iii)1/3is the best answer i- 1/4ii- 4/10iii- 1/3 i)1/4 ii)4/10iii)01/3 |
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| 15. |
vedic maths 92×97 |
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Answer» 8924 is your answer of the question |
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| 16. |
2.The suitable formula to find the sum of first n terms of the A.P. 1+3+5+7+.A) 2n2B) n(nt1)C) n2D) n(n-1) |
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Answer» C) Thank you😊 |
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| 17. |
tfts afore (Vedic Mathematics |
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Answer» Vedic Mathematicsis the name given to a supposedly ancient system of calculation which was "rediscovered" from theVedasbetween 1911 and 1918 by Sri Bharati Krishna Tirthaji Maharaj (1884-1960). According to Tirthaji, all ofVedic mathematicsis based on sixteen Sutras, or word-formulae. |
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| 18. |
12*(a*(b*c)) - c^3 %2B a^3 %2B 64*b^3 |
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Answer» a^3 + 64^3 - c^3 + 12abc Using formulaa^3+b^3+c^3–3abc = (a+b+c)(a^2 + b^2 + c^2–ab–bc–ca) = (a)^3 + (4b)^3 + (-c)^3 - 3(a)*(4b)*(-c) = a^2 + 16b^2 + c^2 - 4ab + 4bc + ac |
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| 19. |
minutes.Powerof the motor isman carries a load of 50Kgman is 1568 W, mass of the man isthrough a height of 40m in 25s. If the power of the200 kIN lte efficiency is 80%. It operates a |
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| 20. |
15.The value of (34 a)2 + (04)6=a)64b) 729c) 21d) 0 |
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| 21. |
12.Ifthe distance between the points (x,0) and (0,3)Ä°s 5, what are the values ofx' |
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| 22. |
the measure of two adjacent sides of rectangles are in the ratio of 11:10. If the perimeter of the rectangle is 84cm, find its area. |
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| 23. |
EXERCISE 4.2EAIn the given figure three lines AB, CD and EFintersecting at O. Find the values ofx, y and z it isbeing given thatx:y:z-2:3:5Find the value ofx in the following figures.El |
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Answer» multiply the ratio by 'a' thus x=2ay=3a and z=5ahence 2x + 2y + 2z = 360°4a+6a+10a = 36020a=3602a= 36°=x |
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| 24. |
Find the values ofx and y in the following figures700i0(iv) |
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| 25. |
What amount is 15% more than150 ? |
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| 26. |
Given LM<G and <Nz 2H, find the value of x.(2x-50)42°24° |
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Answer» N= 180- (142+24)=180 - 166= 14 (2x -50) =14 2× =14+50=64 × =64÷2=32 |
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| 27. |
8.A suitable formula to find the area of four walls of a room.A) 2h (l-b)B) 2 (lb+bh+lh)C) lbhD) 2h l+ b) |
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Answer» Option- B 2(lb+bh+lh)please like the solution 👍 ✔️ |
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| 28. |
EXERCISE 18Athe mean of 5 observations x, x +2,x +4,x + 6 and x +8 is 11,find thevalue of x. |
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Answer» x+x+2+x+4+x+6+x+8= 115x+20=115x=-9x=-9/5 |
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| 29. |
EXERCISE 1.4471. The product of two numbers is 11 If one of the numbers is, find the other. |
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Answer» aAnswer is 6 and your question is best please give me best answer |
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| 30. |
EXERCISE 11.Juct an angle of 90 at the initial point of a given ray and justify the construction |
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| 31. |
Find 15% less thanて75.9. |
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Answer» 15/100×75.=15/4x3/1=45/4=11.2 75-11.2=63.8Ans:-63.8 75 multiply 15 upon 100 when the answer will come subtract it from 75 15.100×75=15.4×3.1=45.4=11.2=63.8 |
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| 32. |
0 (6) 64 B |
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| 33. |
EXERCISE 401. Represent each of the following rational numbers on the number line11(vii)(vii) -2:11.. |
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| 34. |
- Find the complement1 25° |
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Answer» 65. 75 is the answer and it is a correct answer the correct answer of the given question is 65° because the sum of complementary angles is always 90° |
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| 35. |
9. Use estimation to compare. Fill in the blanks v(1) 33 Ă 88 53 Ă 42(iii) 3,92,550 + 56,234 68 x 5778 |
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Answer» india sabse bada mandir kaha he |
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| 36. |
(b)the amount 15% less than400. |
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| 37. |
\left. \begin array l 3 a %2B 5 b = 26 ; a %2B 5 b = 22 \\ 2 x - 3 y = 9 ; 2 x %2B y = 13 \\ 5 x %2B 2 y = - 3 ; x %2B 5 y = 4 \\ 99 x %2B 101 y = 499 ; 101 x %2B 99 y = \\ 49 x - 57 y = 172 ; 57 x - 49 y = 252 \end array \right. |
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| 38. |
find the number whichis15% less than 300 |
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Answer» 15% of 300 =45.°.the number which is 15% less than 300 = (300-45) = 255 225 is the answer after taking out 15% of 300= 45 300 - (15% of 300)= 300 - 45= 255 225 is the answer to this question |
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| 39. |
workedonthesethreedays?5. Ayushree sat for six tests and Ananya sat for seven tests. Their percentage scores werAyushree 68 75 7045 57 77Ananya 52 87 64 53 74 81 86Who has the higher mean score? |
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Answer» Mean Of Ayushree = 68+75+70+45+57+77/6=392/6= 65.34Mean Of Ananya = 32+87+64+63+45+81+86/7=458/7=65.42so Ananya has higher mean score |
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| 40. |
1 more than 57 is1 more than 64 is1 more than 72 is1 more than 66 is1 more than 55 is1 more than 68 is |
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Answer» 58 65 73 67 56 69 |
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| 41. |
Solve the equation find all possible values ofx? (x2tx57)32+3(x257)x |
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| 42. |
7).An angle of measure 150° angle is an(a) acute(c) obtuse(b)(d)angle.straightright |
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Answer» (c) partobtuse angle (c) parti tuze angle. the angle is obtuse. is the best answer. obtuseis the best answer an angle of measure 150° angle is an ACUTE angle. the answer is obtuse angle An angle of measure 150° angle is an obtuse angle... angle of measure 150° an obtuse The answer is an obtuse angle An angel of measure 150 angle is an (obtuse) angle. the angle is Obtuse angle obtuse angle is the answer of your question c option obtuse because angle more than 90° but less than 180° called obtuse angle |
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| 43. |
5. Find angle which is one third of its complement6. Find an angle which is four times of its stpplement |
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| 44. |
The two sides of a triangular room areperpendicular to each other. If thesesides measure 10 m and 12 m respectivelyfind the total area of the carpet needed tocover the floor of the room11. |
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Answer» total area need to cover the floor of the room = multiplication of sides = 10 m × 12 m = 120 m*m |
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| 45. |
(a) 11644. Find the cost of 6 litres of milk if the cost of milk is 7 21 per litre |
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| 46. |
(xxiii) A boat goes up-stream 30 kilometres and down-stream 44 kilometres in 10 hours, it also goes upstream 40 kilometres and down-stream 55 kilometres in 13 hours. Find the speed of the streamand of the boat. |
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| 47. |
A container, open at the top, is in the form of a frustum of a cone ofheight 24 cm with radi of its lower and upper circular ends as 8 cm and20 cm respectively. Find the cost of milk which can completelycontainer at the rate of 21 per litre.fill theCBSE 2014 |
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| 48. |
If a person per week salary is 100 then how much he earning per month in 31 days and how much he earn per year |
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Answer» 442 or points Mai me ah so he earn 4,800 in one year he earn 4800 per year Rs 5214.285 is the correct answer Earn 5214.285 is the correct Answer his earning per month will be 440(approx)his earning per year will be rs 5280(approx) in a month there are 4 week 1 week =1004week =4×100400400×124800 1 week salary is 100. one week has 7 days.then, 1 day's salary = 14.28(approx) in a month his earning is 14.28*31 = 442.68(approx) hence in 1 year(12 months) his earning is 12*442.68 = 5312.16(approx). |
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| 49. |
Using suitable property, findte property, find the product :(i) 14 x 98 |
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Answer» 1372 the correct answer of the given question 1372 is the correct answer 1372 is the correct answer 1372 is the correct answer 1372 is the correct answer of the following question. correct answer is 1372 1372......... ...................... 1372 is the answer...., 1372 is the correct ans....... 1372 is the correct answer 14(100-2)=14×100-14×2=1400-28=1372 1372 is correct answer 14 (100- 2)= 14× 100- 14×2= 1400- 28= 1372 is the answee 1372 is the correct answer 1372 is right answer... |
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| 50. |
The area of a rhombus is 98 m2. If one of its diagonal is 14 m, find the other diagonal |
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