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. |
In a class of 60 students, each boy contributed rupees equal to the number of girls andeach girl contributed rupees equal to the number ofboys. If the total money then collectedwas 1600. How many boys are there in the class? |
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| 2. |
hanage.0.1The studentsstudents of a class contributed some amount of money to an orphanaont contributed as much amount as the number of students in the cie there in theotal contribution from the class is Rs 2,209, how many students were theclass?13 5329 57247alled the number by itself and subtract |
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Answer» 47 is the correct answer 47 is the correct answer answer of this question is 47 |
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| 3. |
23. Find the condition which must be satisfied by the coefficients of the polynomialf(x) = x3-px 2 +qx-r, when the sum of its two zeroes is zero.(x)-x- px +qx - r, when the sum of its two zeroes is zero |
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| 4. |
Seven hundred two point zero nine |
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Answer» 7002.09 |
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| 5. |
SCHOL Vishakha's packetsThere are 15,000 people watching a football match in a stadium and one-third of the chairs aanoccupied. What is the capacity of the stadium? |
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Answer» People=15000Let no.of seats=xNo. Of seats occupied=1/3xSo, 1/3x=15000X=15000*3=45000So, no.of seats=45000 |
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| 6. |
Exeraise 4(E)4.1. Construct the right angle ΔPQR where LO: 90°, 1QR = 8 cm, PR = 10 cm. |
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| 7. |
Find the mean meaian nd madC.0-lo106o- |
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Answer» hit like if you find it useful |
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| 8. |
82. Test of independent of two atributeis conducted by:(A) t-test(B) F-test(C) Chi-square test(D) Z-test |
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Answer» The Chi-Square test of independence is used to determine if there is a significant relationship between two nominal (categorical) variables. The frequency of each category for one nominal variable is compared across the categories of the second nominal variable. (C) is correct option |
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| 9. |
teral is 2:4:5:4. Then, the measure |
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| 10. |
teral triangle ABC. AD is drawn nerpendicular to BC meeORIn an equilateralProve that AD2= 3RDcuilar to BC meeting BCat D. ProB |
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Answer» In an equilateral triangle ABC ,AB = BC = ACAD⟂ BCAD is also the perpendicularbisector of the side BC.Hence,BD = DCAlso,BC = 2 BD According to Pythagoras theorem,InΔADB, AB² = AD² + BD² AD² = AB² - BD² AB = BC , AD² = BC² - BD² AD² = (2BD)² - BD² AD² = 4BD² - BD² AD² = 3BD² |
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| 11. |
The karanataka team starts from bangalore and moves in the north direction which states does it cross to reach Delhi ? |
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Answer» From Bangalore to Delhi, the team crosses following states:Maharashtra, Madhya Pradesh and Uttar PradeshFrom Madhya Pradesh the team may also go through Haryana or Rajasthan. |
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| 12. |
In a football match, a goalkeeper of a team can stop the goal, 32 times out ofattempts tried by a team. Find the probability that the opponent team can convethe attempt into a goal.convertn |
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Answer» Total number of shots = 40 Number of times goalkeeper stop the shots = 32 Therefore, Number of goals = 40-32 = 8 so, Probability that a team can make a goal = 8/40 = 1/5 |
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| 13. |
+5यदि :- हो, तो ३ का मान क्या होगा?hoका मान}+8 |
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Answer» x /5 = y/8 x/y = 5/8 Let x = 5a, y = 8a Now,Value of (x + 5)/(y + 8)= (5a + 5)/(8a + 8)= 5(a + 1)/8(a + 1)= 5/8 Therefore,(x + 5):(y + 8) = 5:8 |
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| 14. |
s cost 270, how much will 12 pens cost?5 pe |
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Answer» Cost of 5 pens = 70 Cost of 1 pen = 70/5 = 14Cost of 12 pens = 12 × 14 = 168 |
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| 15. |
EXERCISE 15.2Tuo angles of a triangie are of measures 105° and 30°. Find the measure of the third angle. |
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| 16. |
3. A coin is flipped to decide which team starts the game. What is the probability thatyour team will start? |
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| 17. |
manure has to be appiied pe ho5. The length of a rectangular field is twice its breadth and its area is 2 hectares. Find the cost of fencingthe field at50.00 per metre.ith Mlhat will he the ratio of the area of a rectangle |
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| 18. |
e any two of the following. ..The measures of angles of a triangle are in ratio 5:6:7. Find the measures.TRY FOO |
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Answer» 36°,60°,84° is the correct answer of the given question |
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| 19. |
Arcs are drawn by taking certices A, B and C in an equaltaral trianglevof side 10 cm , to intersect a side BC, CA and AB at their respectine met point D, E and F. Find the area of shaded region. |
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| 20. |
We need 70 kg of wheat flour to serve 350 people. How many people can beserved with 40 kg of wheat flour? |
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Answer» 200 people can be served 70kg=350 people1kg= 350÷70=5 people40×5= 200so the people are = 200 200 people is correct answer. For 350 people 70 kgby 1kg 350 / 70 = 5 by 1kg we can serve 5 peopleby 40 kg 40 × 5 = 200we can serve 200 people with 40 kg 200 is the correct answer |
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| 21. |
C. Answer the following questions:6) How do vibrations reach our ear?(i) How is a thunder sound produced?(ii) What are the uses of sound?(iv) Give a suitable title to the passage. |
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Answer» (1) through ear drum (2) thunde sound produced by lightning by medium of air vibration reaches our ear (i) through ear drum .(ii) (iii) by medium of air vibration reaches our ear |
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| 22. |
A maprine has 60 pages of which are for advertising.. have only photographs on them and therest are for articles and stories. How many pages have articles and stories on them? |
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Answer» Total pages = 60 Number of pages for advertising = 60*7/12 = 5*7= 35 Number of pages have only photographs = 60*4/15= 4*4 = 16 Therefore,Number of pages have articles and stories = 60 - (35 + 16)= 60 - (51)= 9 |
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| 23. |
10. A magazine has 60 pages of which 14 are for advertising,4have only photographs on them and therest are for articles and stories. How many pages have articles and stories on them? |
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Answer» Total pages are 60 Pages for advertising=(7/12)*60=35Pages for photographs=(4/15)*60=16So, pages for articles and stories are=60-(35+16)=60-51=9 |
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| 24. |
at thte diagohals of a rhombus are perpenncdian3. Two parallel lines Iand m are intersected by a transversal p. Show that the quadrilateralformed by the bisectors of interior angles is a rectangleith LQPR4. PQRS is a rectangle w35% Determine ZSQR, <QSR and LSPR. |
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| 25. |
a. Do you want milk? |
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Answer» Do you want milk? --> Question. |
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| 26. |
Justify the statement : "Tthe batting first at the beginning of a cricket gameossing a coin is a fair way of deciding which team should get |
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Answer» Because there is a 50 % probability of winning , for each team.Here both heads and tails of an unbiased coin(used in cricket) have equal probability of outcome. |
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| 27. |
17. Aparna has to answer 20 questions in an assignmentShe has answered 18 questions correctly. Whatpercentage of questions has she got correct? |
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Answer» percentage of the correct answer is 18/20×100%=90% percentage of the correct answer is 18/20 × 100% = 90% |
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| 28. |
Ina school a teacher asked the studentof class ix to find value of a in thefollowing figure of the lines pandq oreparallel Vandana answered 35. Is sheCorrect?3x12o(22-15 |
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Answer» 3x+20=2x-15(alternate angles)3x-2x= -15-20x= -35° if two line are parallel then alternate angles are equal therefore 3x+20 equal to 2x-153x-2x+20+15 equal to 0x+35 equal to 0 x equal to -35 (3x+20) +(2x-15) =180° 5x=175°so, that's how x=35°yes, she is correct... like the answer if you like |
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| 29. |
3If a2 + b2 + сг = 30 and a + b + c =10 then find the value of ab + bc + ca |
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Answer» diiii 100 kase aaya h a+b+c = 10 hai so 10 ka square 100 hota hai okkk |
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| 30. |
13. If the centroid of the triangle formed by the pointsA(a, b), B(b, e) and C(c, a) is at the origin. What isthe value of--+-+bc ca ab |
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| 31. |
Q23) If a+b+c 5 and ab+bc+ca-10, find the value of a +b+c-3abc. |
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| 32. |
Q.12If a + b + c = 7 and ab + bc + ca = 20, find the value of a? + b2 + c?. |
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Answer» The answer is 9 .First do squares at both sides of a+b+c |
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| 33. |
A painting competition started at 11:45 a.m. and finished at 1.35 p.m. How long did the competition last? |
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Answer» Calculate the total timeFrom11:45-12:45pm--1 hourNow from 12:45-1:35pm=50minutesHencetotal time is 1hour 50minutes |
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| 34. |
In an auditorium, the number of rows is equal to the number of chairs in each row. If the capacity of the auditoriumis 3025, find the number of chairs in each row. |
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Answer» In Auditorium No of Rows is let be xno. of rows and no. of chairs are same So equations isNo. of chair × No.of rows =3025x × x = 3025No of chair and Rows is 55 |
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| 35. |
is zero rational number ? can you the from p where p and Q are int |
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Answer» Yes zero is a rational number. It can be expressed in the form p/q where p is always equal to zero and q can be any integer except zero. p=0 and q≠0, q can be any integer |
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| 36. |
1. Is zero a rational number? Justify. |
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Answer» zero is a rational. it can be write in the form of p/q ex . 0/1.. Yes of course 0 is a rational number because it can be written in p/q form where q is not equal to zero. Yes because we can write it as 0/1 yas because as form of p by q its arational yes as 0 can be written as 0/1 Yes ,0 is a rational number. It can be written in the form of p/q . For example - 0/1,0/2,03. Yes ,0 is a rational no. because we can write 0 in the form of p/q ( in the form of fraction); that is 0=0/1=0/-5 , etc.... |
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| 37. |
1. Is zero a rational number? Justify |
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Answer» If we recall the definition of Rational Numbers, they are the numbers which can be expressed in form of p/q where p & q both are integers and q ≠ 0. Moreover, we know 0 can be written as 0/1, we observe that both 0 & 1 are integers and the denominator Since ‘1’ ≠ 0 that satisfies the condition. So we conclude that ‘0’ is a rational number and not irrational. |
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| 38. |
Ti atbtc50 then fod he value ofecaab |
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Answer» thanks |
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| 39. |
The product of two whole numbers is zero. What do you conclude? |
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| 40. |
is m 2+4.5 and3+3-5, fod (-2p+(b-3) |
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Answer» please like 👍 sorry to say answer may be 16.. how ?ans. may be 16. please ans. me to learn |
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| 41. |
9- 18+ (4+2x3) 5x 2-20.8-[0.95 - 1.8-(0.3-12x 0.4) |
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Answer» According to BODMAS theory, 0.8 - [0.95 - {1.8 - (0.3÷12*0.4)}] = 0.8 - [0.95 - {1.8 - (0.025*0.4)}] = 0.8 - [0.95 - {1.8 - 0.01)}] = 0.8 - [0.95 - {1.79)}] = 0.8 - [-0.84] = 1.64 |
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| 42. |
23. While boarding an aeroplane, a passenger got hurt. The pilot, showing promptness andncern, made arrangements to hospitalise the injured and so the plane started late by 30 minutes. Toreach the destination, 1500 km away, in time, the pilot increased the speed by 100 km/hour. Find theoriginal speed/hour of the plane. Do you appreciate the values shown by the pilot, namely. promptnessin providing help to the injured and his efforts to reach in time? |
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Answer» thnx |
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| 43. |
24-How many numbers are there in all which consist of 5 digits? |
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Answer» Number of 5 digit numbers is 90000, starting from 10000 till 99999. Please hit the like button if this helped you |
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| 44. |
A test tube has diameter 20 mm and height is 15 cm. The lower portione. Find the capacity of the test tube.(iii)(π = 3.14) |
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Answer» csa of hemisphere+csa of cylinder Like if you find it useful |
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| 45. |
List the primes:(i) Less than 30 |
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Answer» Explanation : Prime numbers are those who divided by 1 and self only so prime less than 30 2,3,5,7,11,13,17,19,23,29 Solution : 2,3,5,7,11,13,17,19,23,29 If you find this answer helpful then like it |
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| 46. |
A work is to be finished in 12 days by 20 workers. After 8 days, it is found that o1part of the work has been done. How many more workers should now be enga2in order to finish the job in time? |
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Answer» Answer is 20 workers |
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| 47. |
What must be added to 2x35x 5to get 35 +7-10-42 |
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Answer» (2x^5-3x³+5x-5)+x = (3x^5-5x⁴+7x³-10x²-4) x = 3x^5-5x⁴+7x³-10x²-4-2x^5+3x³-5x+5 x = x^5-5x⁴+10x³-10x²-5x+1 |
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| 48. |
6. In order to get 19 , 6 4/3 must be added to A ) 10 1/3 B ) 7 1/33 C ) 11 2/3 D ) 9 5/3 |
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| 49. |
What number must be added to each of the numbers 5, 9, 7, 12 to get the numbers which are inproportion? |
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| 50. |
ATHEMATICSI EXERCISE 6.11. What will be the unit digit of the squares of the following numbers?i 81 (i) 272 (i) 799 (iv) 3853(v) 1234 (vi) 26387 (भा) 52698 (vii)) 9988(ix) 12796 (x) 55555 |
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Answer» unit digits are following1419694465 |
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