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. |
(v)9Ă81"=272-x |
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Answer» 9*9^2x = 27^2-x 3²*3^4x = 3^3(2-x) 3^(4x+2) = 3^3(2-x) 4x+2 = 6-3x 4x+3x = 6-2 7x = 4 x = 4/7 Like my answer if you find it useful! |
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| 2. |
(v)9 Ă 81 x = 272-x |
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Answer» 9 x 81^x = 27^2 - x(3)^2 x (3)^4x = (3)^6-2x(3)^[2+4x] = (3)^[6-2x] Base is same so powers are equal Therefore, 2 + 4x = 6 - 2x6x = 4x = 4/6 = 2/3 |
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| 3. |
d. 1 sq.cm.4. The probability of occur an event is P, then the prof the event do not occur.b. Ac. Zeroa.d 1-P |
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Answer» Answer: d)1-PExplanation:f you know the probability of an event occurring, it is easy to compute the probability that the event does not occur. If P(A) is the probability of Event A, then 1 - P(A) is the probability that the event does not occur. ok |
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| 4. |
(ii) 2x2 + y2 + 822 – 272 xy + 472 yz - 8xz |
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| 5. |
SECTION - Amplify:578 +232 - 272OR2 |
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| 6. |
Q23. Factorise each of the following:(a) 8x3 + ัะท +272-18xyz |
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| 7. |
-40800 %2B 125 %2B 425 %2B 272 %2B 36*166 |
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Answer» −35092.6 is the answer of the following -35092.6 is the correct answer of the given question -35092.6 is the answer of the following question राइट answer................ -35092.6 is the correct answer -35092.6 is the correct answer -35092.6 is correct answer of the following question. The right answer is - 35092. 6 |
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| 8. |
) r%-of 1 kg is 50 g'r% of 320 is 272 |
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Answer» i) 1kg = 1000g (x×1000)/100 = 50x × 10 = 50x = 50/10 = 5ii) (x/100)× 320 = 272 x = (272×100)/320= 85 |
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| 9. |
Drasurmames were randomly picked up from a local telephone directory and a frequencylistribution of the number of letters in the English alphabet in the surnames was fovovoas follows:Number of lettersNumber of surnames4 6308 -1212-201640 Draw a histogram to depict the given information.(ii) Write the class interval in which the maximum number of surnames lie. |
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| 10. |
sumames were randomly picked up from a local telephone directory and afrequency distribution of the number of letters in the English alphabet in the surnameswas found as follows:Number of letters Number ofsurnames6304-66-88-1212-2016(G) Draw a histogram to depict the given information.(ii) Write the class interval in which the maximum number of surnames lie. |
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| 11. |
taaUOVC100 surnames were randomly picked up from a local telephone directory and adistribution of the number of letters in the English alphabet in the sumames was foas follows:frequencyNumber of lettersNumber of surnames4 66-88 1212 - 203016(i) Draw a histogram to depict the given information.(i) Write the class interval in which the maximum number of surnames lie. |
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| 12. |
116. In how many different ways can the letters of the word 'CORPORATION' be [arranged so that the vowels always come together?a) 50400 b) 50402c) 50500d) noneCar |
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Answer» Vowels in the word "CORPORATION" are O,O,A,I,OLets make it as CRPRTN(OOAIO) This has 7 lettes, where R is twice so value = 7!/2!= 2520 Vowel O is 3 times, so vowels can be arranged = 5!/3! = 20 Total number of words = 2520 * 20 = 50400 (a) is correct option |
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| 13. |
1) 576(2) 578How many ways can the letters of the word 'UNIVERSAL' be arranged ? In how many of these wilE, R, S always occur together?(4) 31240(5) of these |
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| 14. |
15) In how many permutations of 11 dissimilar things,taken 4 at a time, will one particular thing (a)always occur? (b) never occur? |
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| 15. |
(28-11) \times[4 \times 3+\{6 \div 2(4 \times 3+3)\}] |
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| 16. |
(15) In how many permutations of 1 dissimilar things,permutations of lI dissimilar thingstaken 4 at a time, will one particular thing (a)always occur? (b) never occur |
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| 17. |
7 = 11 \times 5 - 12 \times 4 |
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Answer» 11. _5_ _55__ 12 448 55-48 7 |
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| 18. |
16A wheel makes 360 revolutions in one minute. Through how many rad uns zoesit tum in one socond?e ihtended at the centre of a |
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Answer» 1 minute=60 seconds .360÷60=6.thereforeit will take 6 revolution in a 1 second. |
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| 19. |
2Ex pan |
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| 20. |
There are 50 books in a class library, Mani has read 20% of the books in his class library. How manybooks has he read? |
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Answer» 20*50/100 = 10 books we should write in percentage |
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| 21. |
" In a library, 50% of total number of books is of Marathi. The books of English arerd of Marathi books. The books on mathematics are 25% of the English books.The remaining 560 books are of other subjects. What is the total number of booksin the library? |
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Answer» Let the total number of books be x 50 % of the total books are of Marathi = x*50/100 = x/2 Books of English are 1/3rd of Marathi = (x/2)*(1/3) = x/6 Books on Mathematics are 25 % of the English books = (x/6)*(25/100) = x/24 Remaining books = 560 Now, according to the question. ⇒ x/2 + x/6 + x/24 + 560/1 = x/1 ⇒ (12x + 4x + x + 13440)/24 = x/1 ⇒ 17x + 13440 = 24x ⇒ 24x - 17x = 13440 ⇒ 7x = 13440 ⇒ x = 13440/7 ⇒ x = 1920 So, there are 1920 books in the the library. |
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| 22. |
12 The national wealth of a country increases by 4% of its value at the beginning of every year. Findthe national wealth of the country in 1985, if it was estimated at 3.125*1012 in 1983, |
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| 23. |
4The length of the garden in Jaya's house is 15 m. Its breadth is 11 times the length. What is the areaof the garden? |
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Answer» thank u so much |
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| 24. |
कर कि) 7 oy3x+2 |
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Answer» x² - (x - 1)(x - 3)----------------------- = - 5 3x + 2 x² - ( x² -3x -x + 3) = -5 (3x + 2) x² - ( x² - 4x + 3) = -15x - 10 x² - x² + 4x - 3 = - 15x - 10 4x - 3 = -15x - 10 15x + 4x = -10 + 3 19x = -7 x = -7/19 Hit like if you find my solution helpful |
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| 25. |
33. The average score of a cricketer intwo matches is 27 and in three othermatches is 32, Then his average scorein all the five matches isa. 28b. 29c. 30d. 31 |
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| 26. |
The heights offive players are 153 cm, 140 cm, 148 cm, 150 cm and154 cm respectively. Find the mean height of the five players.LEI |
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| 27. |
The length and breadth of a rectangular garden are 120 m and 90 mrespectively. Find the length of the wire needed to fence all around thegarden five times. |
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| 28. |
t of 20 matches played by a team, 12 are won and 3 are drawn. Find the probability of thematches lost9. Ou |
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| 29. |
(उ्ज) O<x<oy —1 {2 |
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| 30. |
34. If % of a number is 9, find the number.5. There are 42 boys and 18 girls in a class. What is the percentage of boys in the class?6. A team won 6 hockey matches and lost 9 matches. What per cent of the matches did the teamwin? |
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Answer» 4)3/4/100*x=93/4*100x=9.3*25x=925x=9/325x=3x=3/25 collect information about the three insects shown on the next page. find out same beetle is called by different names work in groups. collect information about the three insects shown on the next page. find out why the same beetle is called by by different names collect information about the three insects shown on the next page. find out why the same beetle is called by different names |
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| 31. |
6. ५ -ऐ. 2. ८०oy 120 |
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Answer» y - x + 2 = 0 x + 2y - 4 = 0 y - x + 2 + x + 2y - 4 = 0 3y - 2 = 0 3y = 2 y = 2/3 2/3 - x + 2 = 0 x = 2 + 2/3 = 8/3 |
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| 32. |
है हू i(oY |
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| 33. |
to the SThe radii of two circles are 8 cm and 6 cm respectively. Findthe radius of the circle having area equal to the sum of theareas of the two circles.rked with its five |
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| 34. |
EXERCISE 98If 16% of a number is 60, find the number.2. If 130 % of a number is 90, find the number.3. If 0.6% of a number is 15, find the number4. If % of a number is 9, find the number.5. There are 42 boys and 18 girls in a class. What is the percentage of boys in the class?6. A team won 6 hockey matches and lost 9 matches. What per cent of the matches did the team334win? |
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| 35. |
A person has earned his income during the financial year 2017-18. Then writehis assessment year. |
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Answer» it will be 2018-19 thanks |
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| 36. |
ASSESSMENTWrite the successor of the following numbersa. 73Write the nradb. 46,006C. 1 lak |
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Answer» i) 73 + 1 = 74 ii) 46006 + 1 = 46007 If you find this answer helpful then like it. |
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| 37. |
Find the least number which must be added to each of thto get a perfect square. Also find the square root of the(i) 525(i) 1750(ii) 252 |
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| 38. |
न ससििसििस्यसससलल:oy 0L = |
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Answer» 15x=45 x=45/15 x=3The value of x is 3. |
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| 39. |
है...“ ५. ० का) जे. के, दीदीवीन 6 टक्नना ६३ 3 Qi oy : |
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Answer» 6000×6.25×3/100 = 60×18.75 = 1125 |
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| 40. |
3 —5) 9 न 5 —6]हे... oyi 6 12 .04 ) 13l |
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Answer» -531/858 is the correct answer of the given question -531/858 is correct answer -531/858 is right answer of this question. please like my answer |
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| 41. |
"सा के oy डी |
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Answer» Area= लंबाई x चौड़ाई= 15*20= 300cm^2 |
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| 42. |
so as to get a perfect sqdai() 252Without any calculation, find which of the following numbers are not perfect squar(ii) 1458uty8.es)(iv) 3481() 1053(ii)628(iii) 657and Square Rootsi ha divided to get a perfect sq |
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| 43. |
Find the least number which must be added to 4931 to make it a perfect square. Alsofind the square root of the perfect square so obtaihed. |
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| 44. |
Q14.The ratio of the number of people outside a movie hall to the number of people inside the hall is 3:5. If the totalnumber of seats in the cinema hall is 150, find the number of people who cannot enter the cinema hall because thetickets are sold out. |
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Answer» If you find this solution helpful, Please like it. |
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| 45. |
=N कि 5 252ि) = 521)60KRM/H 308" 2.83e0 270 o8 $0855 24 VESS® w65 © Jeo 26 ((1) 120 Don (130 o (3) 170 Dou (4) 20053न 23. आल |
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| 46. |
picsent uns sltuatioh รกs a quadratic equation.Ramesh proposed that (x+2)3x4 is a cubic equation. Do you agree? Why ? |
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| 47. |
what are dou |
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Answer» Ans :- DOU. Diário Oficial da União (Brazilian official press)DOU. Definitive Observation Unit (healthcare) |
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| 48. |
2010, how many lions wère lert l 20TU14. Due to the pulse polio campaign, the number of polio cases in Uttarakhand has come dowby 85% to 135, Find the number of cases earlier.Dou International matches in a year. It won 32, lost |
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Answer» initially x so 0.15x=135so x=135/0.15=900 thank you |
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| 49. |
B T Bt“(0) (x2 + y2) k2 + की १ 9 2 (2 + ¥Vi |
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Answer» (x^2 +y^2)((x^2 +y^2) + (x^2 - y^2)(x^2 +y^2)= (x^4 +y^4 + 2x^2y^2) + (x^4 - y^4)= 2x^4 + 2x^4y^4= 2x^4(1 + y^4) |
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| 50. |
4 Find the least number which must be added to 6203 to obtain a perfect squareAlso, find the square root of the number so obtained. |
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Answer» if we add 38 in given number than it becomes a perfect square whose square root is 79 |
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