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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. |
SECHION-D16. An elevator descends into a mine shaft at the rate of 6 m/min. Ifthe descend starts from 10 m above the ground level, how longwill it take to reach the shaft 350 m below the ground level? |
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Answer» Considering the elevator to be at constant speed and the destination to be 350 m below ground level, The elevator has to travel 10m till the ground, then 350 m more. So, the total distance to travel is 360 m If the elevator's speed is 6 metres/minute,Then Time= Distance/Speed = 360/6 =60 minutes =1 hour Thus the elevator would take 1 hour to reach its destination. The descend starts from 10 m above ground level and the elevator has to travel 350 m, so total distance that is travelled by the elevator= (350+10)m =360m.Now, speed =6m/minSo, time required= distance/speed=(360/6) mins=60 mins= 1hr |
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| 2. |
5. In figure if AD = 6cm, DB = 9cm, AE = 8cm and EC = 12 cm and ZADE = 48°. Find ZABC.D48TNBU |
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| 3. |
1. In △ABC, if<B = 76" and <C = 48", find LA. |
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5. In figure if AD- 6cm, DB-9cm, AE8cm and EC-12cm and ZADE48". Find IABCD 48C: |
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| 5. |
1.In △ABC, if LB76' and LC = 48, findA. |
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| 6. |
Secondary School MathematicsEXERCISE 8Î ABC, if<B " 76, and <C-48", find |
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Answer» B = 76 C = 48 A = 180 - 76 - 48 = 180 - 124 = 56 |
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| 7. |
Find Wa ang ) नै. है 5116: 90:०2, 48: 130, 6¢,4812 हक o |
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Answer» Therange of a set ofdatais the difference between the highest and lowest values in the set. Arrange the data in ascending order12, 15, 20, 49, 50, 68, 70 Highest value = 70Lowest value = 12Range = 70-12= 58 ans 58 is the correct answer 58 is the correct asnwer my asnwer is come this asnwer only |
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| 8. |
SEMESTER IIITIME: 1.5 HRS.Note: Attempt all the questions. All questions carry equal marks.Choose the correct answer:-1.Which angle is equal to LAQS if two parallel lines are cut by a third linea) Z BOSc) Z CRPb) Z DRS2.What is the name of angle, if the angle is more than 180°?VORE THAN 180BUT LESS THAN 360a) Acute anglec) Obtuse angleb) Reflex angled) Straight angle |
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Answer» 1) angle AQS = angle BQP ( vertically opposite angle)so option d is the answer 2) option b reflex angle hit like if you find it useful one is answer the qustion is.C no two qustion answer is .b.Reflex angel |
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| 9. |
、, l i ( ) } IS (272 111 (Irks eachstions of marks each.SECTION A23.232le of rotation at which then the clockwise sense. Al |
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| 10. |
1323Ń 441Iil the qusdratic equation ax bx6 0 does not have two distinct real roots, then the least value of2a "b is14721 |
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Answer» doesn't have distinct real roots so b^2=4ac b^2=24a or 2a=b^2/12so 2a+b=b^2/12+bb^2+12b/12b^2+36+12b-36/12=(b+6)^2/12-3minimum value will be -3 |
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| 11. |
Convert to Roman numbers.. 18 XVIII 2. 25 XXV53 L T 6. 73 LG46 XL V 10.29XXIX |
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Answer» 18:XVIII,25:XXV,53:LIII,73:LXXIII,46:XLVI,29:XXIX 18=XVIII , 25=XXV , 29=XXIX , 46=XLVI , 53=LIII , 73=LXXIII |
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| 12. |
anya has a piece of land which is in the shape of a rhombus (see figure). She wants herone daughter and one son to work one the land and produce different crops. She dividedthe land in two equal parts. If the perimeter of the land is 400 m and one of the diagonalsis 160 m, how much area each of them will get for their crops?100 m100 mI)1002 |
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| 13. |
--axx + c where ac 0, then prove that4ac andro)-Q(x)-0 hasleast two real roots.Hint f Pu)- and Qa)- both have complex roots, then+sac0+60 which is wrong |
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| 14. |
Equation (x + 2)(x + 3)(x+ 8)(x+ 12) 4x has(AHour real & distinct roots(Bytwo irrational roots(D) two imaginary rootstwo integer roots |
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Answer» the red line is the graph of L.H.S, and the blue kine is the graph of R.H.S and the. of points at which blue line and red lines interest are the no. of solutions. so, here 4 reals solutions are possible. of which 2 are integers and 2 are irrational. |
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| 15. |
Find the value of k if the equation 3x^2+kx+2=0 has two distinct real roots |
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Answer» D >0k^2-24>0k>√24for roots to be real and distinct |
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| 16. |
(++ हर 800 (+ऋ-2) पा कुP ———————e (x —)$00 (x+1) S0d |
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Answer» hit a like if u are able to understand the answer |
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| 17. |
.atwouldyoudo?WritingMake sentences of the following words used in the. IncidentWealthGuest |
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Answer» 2. Incident- This incident changed my whole life.3. Wealth- Health is the wealth of every person.4. Guest- The guest will arriving next morning. |
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| 18. |
\frac { \sin ^ { 3 } x + \cos ^ { 3 } x } { \sin ^ { 2 } x \cos ^ { 2 } x }00 + X EUI'S |
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| 19. |
Solve the polynomial inequality x(2x - 3) 20(-00,-2)U(.00 |
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| 20. |
Find the measure of each interior angle and each exterior angle of the indicated regular polygon.8.nonagonmeasure of each int. angle _____ measure of each exterior angle ______ |
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Answer» nonagon measure of each int. angle 140 measure of each exterior angle 40 |
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| 21. |
9. Find the number of sides of a regular polygon if each of its interior angle is 168ind the number of sides of a regular polygon if each of its interior angle is 168°ron is 3780% find the number of sides. |
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| 22. |
. The measure of an exterior angle of a regular polygon is 2t, and the measure of an interior angle is 4the relationship between interior and exterior angles to find the measure of one interior and exterioraangleis 4. Usengleh The other two angles are equal. Find |
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Answer» I assume you mean the EXTERIOR ANGLE is 4x. Draw a polygon, any number of sides. NOW, extend one side, on the angle of interest Note how when you extend that side, you get a straight line. O.K., now how many degrees are there in a straight line??? Label the interior angle 2x, and the exterior angle 4x. Together, they add up to 6x, and must equal the number of degrees in a straight line. SO: 2x + 4x = 180 |
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| 23. |
Find the measure of each exterior angle andeach interior angle of a regular hexagon |
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Answer» Regular hexagons interior angle sum using the formula (n-2) × 180 = (6-2)×180 = 4 × 180° = 720° every interior angle then would be 720/6 = 120° Now exterior angles are always 360°so all angles = 360/6 = 60° how to measure and calculate the total interior angle of the square |
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| 24. |
If each exterior angle of a regularoctagon is 45, then the interior angleof the oetagon is |
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Answer» rong |
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| 25. |
formula for finding interior angle |
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| 26. |
29. The exterior angle of regular polygon is onethird of its interior angle, how many sides hasthe polygon. |
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Answer» Let number of sides in polygon be n Interior angle = (n - 2)/n*180Exterior angle = 180 - interior angle As per given conditionExterior angle = 1/3 interior angle180 - interior angle = 1/3 interior angle4/3 interior angle = 180Interior angle = 135 Hence,(n - 2)/n * 180 = 135180n - 360 = 135n45n = 360n = 360/45 = 8 Therefore, Number of sides are 8 |
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| 27. |
The interior angle of aHow many sides does the polygon have?regular polygon is four times its exterior angle. |
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| 28. |
A positive integer n when divided by 9, gives 7 as remainder. What will be the remainder when3n - I is divided by 9? |
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| 29. |
3) A bracelet is sold at 1250, incurring aloss of 2215. What is its cost price? |
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| 30. |
Find the cube root of 857375 through estimation. |
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Answer» 95 is the cuberoot of 857375. 95 is the cuberoot of 857375 it is the correct answer. 95 is the cuberroot of 857375 95 is the right answer 95 is the correct✅✅ answer 95 is the right answer this question answer is 95 95 is the right answer 95 is the right answer |
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| 31. |
3. Find the cube root of 4741632 by estimation. |
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Answer» Since this number has 6 digits after doing that means this number is more than 100 bcoz cube of 100 contains6 zeros.secondly last digit is 2 that mean we have a no. whose cube contains 2 at last digit as our last digit of cube root. and that no is 8.now cube of 150 is 3375000 and thus our ans will be more than 150.so calculate cube of 158 first and we don't get 4741632 and then calculate cube of 168 and we get ans 4741632.Thus answer is 168. |
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| 32. |
Question numbers 7 to 12 carry 2 marks each.7. Can two numbers have 15 as their HCF and 175 as their LCM ? Give reasons. |
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Answer» For two or more numbers,LCM = Product of highest power of each factor involved in the numbers. HCF = Product of smallest power of each common factor. ∴We can conclude that LCM is always a multiple of HCF, i.e., LCM = k × HCF We are given that LCM = 175 HCF = 15 But in this case, LCM ≠ k × HCF. Therefore, two numbers can't have LCM as 175 and HCF as 15. |
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| 33. |
The number of distinct real roots of x4 - 4x3 + 12x2 +X-1 0 is |
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| 34. |
taking away 5 from x gives 9 |
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| 35. |
31. If y = īogT, show that y is minimum for= e. |
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| 36. |
31. Ifyogshow that y is minimum for -e. |
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| 37. |
3.A farmer wants to dig well either in the formof cuboid of dimensions (1 m Ă 1 m Ă 7 m)or in the form of cylinder of diameter 1 mand height 7 m. The rate to dig the well isR450/m3. Find the cost to dig both wells.The farmer decides to dig the cylindricalwell. By his decision which value isdepicted? |
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Answer» V ofcuboidal well=lbh = 7 m³Rate = 7*450 = 3150 Rs. V of cylindrical well = 5.5m³Rate = 5.5*450 = 2475 Rs. Value depicted = Economical approach |
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| 38. |
Show that the surface area of a closed cuboid with square base and given volume isminimum, when it is a cube. |
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| 39. |
1 Read the given numbers. Write them in words:NumberReading and writing in words221552139602 |
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Answer» I don't know please like I don't know please like 1st question ans = one thousand two hundred thirty five 1. one thousand two hundred and thirty - five (1) one thousand two hundred thirty five |
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| 40. |
Jsing each digit only once, write four four-digit numbers and read.DigitsNumberReading and writing in words |
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Answer» 1=Heleftfull-timeemploymenttocontinuehis studies atuniversity. Digital India Portal WELCOME TO DIGITAL INDIA PORTAL. Pan Card. Email ID : helpdigitalindiaportalgmail.com. Tech Support Number : +91 9368372889... |
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| 41. |
windowsata a height of60 m from the ground, ofa house, the angles of elevation and depression of thetop and bottom of the other house, opposite to the first house, are 60° and 45° respectively. Show that theheight of the other house is 60(1+3)m460(14 v3 |
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| 42. |
19. Find the square root of 20 by estimation method. |
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Answer» 9^2 |
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| 43. |
Add by estimation method :(Example: 67 + 48 = 70 + 45 = 115 (we are taking awayand adding it to 67.)]-75 + 39 = |
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Answer» 80+34=114 or 70+44=114 fsltu hai Bhai ye question I think your answer is 115 sorry your answer is 114 i think answer is 70+40=114 75+39=80+40=120.This is the best answer. |
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| 44. |
- 6 ( x + 7 ) = 6 |
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Answer» Like and accet my answer as best..... anmol please check ur answer. though keep your good work ur extremely good. |
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| 45. |
sonika went shopping with her daughter Arushi. she spent ½ of what she had on buying socks for Arushi and gave 2 rupee to a beggar. she spent ½ of what was left on lunch and gave 10 rupee as tip. she spent ½ of the remaining amount for buying stationary for her daughter and spent 6 rupee as a bus fare. when they reached home Sonika had 20 rupee left in her purse. how much money did she take for shopping? |
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| 46. |
*2-22TINThe value of lim —x → 2 X-2is |
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Answer» 4 |
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| 47. |
aining on buying shoes.23. A boy spent of his money on buying cloth and of the remIf initially he has 2,400; how much did he spend on shoes ? |
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| 48. |
7 Sudha spent Rs 12 on the ingredients of recipe . This was 40% of her money before she bought theingredients. If she had Rs x before buying the ingredients, which of the statements is true?a, 40% of 12-xb. x % of40-12c. 40% of x-12d. of these8 Raui hd 25 |
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Answer» sudha spent 40% of her money before buying this so 40% of the X = 12 .option C. |
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| 49. |
.Amaninvests800inbuying R 5 shares andwhen they are selling at a premium of 1.15.he sells all the shares. Find his profit andprofit percent. |
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Answer» Investment or Total Cost Price : Rs. 800Cost Price of one share (CP) : Rs. 5Selling price of one share(SP) : CP+Premium = 5 + 1.5 = Rs. 6.15 No. of shares = Investment/Cost price of one share = 800/5 = 160 Total Selling Price = 160* 6.15 = Rs.984 Profit = Total CP - Total SP = Rs. 984 - Rs. 800 = Rs 184 Profit% = (Profit/CP*100) = (184/800)*100 = 23% ∴ Profit = Rs 184 and Profit% = 23% hit like if you find it useful |
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| 50. |
14. Samsorrspends rupees 9.50 for buying a pen and rupees 2.50 for one pencil. How muchney did she spend? |
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Answer» Money spend for pen = Rs 9.50Money spend for pencil = Rs 2.50 Then,Total money spend= 9.50 + 2.50= Rs 12 |
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