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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 74801. |
Thefoor ofa building consists of3000 tiles which are rhombus shaped and each ofitsdagnals are 45 ㎝and 30㎝nlangth. Fund the total cost ofpo7· |
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| 74802. |
7.The diameter ofa circular park is 98 m. Find the cost of fencing it at 4 permetre |
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Answer» diameter = 98mtherefore radius = 49mfencing will be done on the circumference. hencecircumference = 2*pi*r = 2*22/7*49 = 308mcost of fencing= circumference*cost per metre = 308*4 = 1232 Rs |
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| 74803. |
Q.4:- संख्याओं को अवरोही क्रम मे लिखिये।(क) 33, 28, 30, 31(ख) 34, 27, 29, 30(ग) 48, 22, 19, 70(घ) 57, 62, 12, 24 |
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| 74804. |
4.Fill in the blank boxes.(a) 150-(c) 150-(e) 19 -64- 125- 805 18 -2 |
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Answer» 150 - 25 = 125 150-70 = 80 19-6 = 17-4 21-5 = 18-2 |
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| 74805. |
charged conductor50. An isolated conductor cannot have a largecapacitance, why? |
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Answer» The capacitance of a conductor is given by C = Q / V, where V is potential of the conductor. In the case of a neutral conductor placed nearer to the charged conductor, then the potential of the charged conductor reduces and its capacity increases. But, in the case of isolated conductor, its capacitance can't be increased to highsince its potential is constant can't and be reduced due to absence of another conductor. |
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| 74806. |
(3+\sqrt{23})-\sqrt{23} |
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Answer» (3+ √(23)) - √(23) 3 + √(23) - √(23)3 |
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| 74807. |
4. Find the value of "K" for which the given system of linear equation has infinitely many solutions5x + 2y = k; 10x + 4y = 3The larger af the tunnlamentaraneles de |
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Answer» infinite many solution mean overlap than ratio of all are equally x=5/10=1/2y=1/2constant=1/2 mean 1.5/3 than k=1.5 ans. k= 3/2 is the correct answer of the given X=5/10=2y=1/2constant=1/2mean1.5/3Than k=1.5 1.5 is the right answer of the following |
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| 74808. |
Integrate the functions in Exercises 1 to 22.1.2. sin 3x |
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| 74809. |
25. The area of a triangle is 5. Two of its vertices are (2, 1) and (3,-2). The third verterlies on y x + 3. Find the third vertex. |
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| 74810. |
3. The weight of 18 boxes is 12kg. Find the weight of 1 box |
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Answer» the weight of 18 boxes =64/5kgweight of one box =64/5÷18=32/45 |
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| 74811. |
27 20 29 30 31TernMEETINGS / APPOINTMENTSD what Shorlel be addod to -3a+ 76-16 to get_ the sum 8-2 |
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| 74812. |
SSC 1. Solve the given system of equationsby elimination method :x + 2y + 1 = 02x - 3y - 12 = 0 |
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Answer» x + 2y = -1 . . . . . (1) 2x - 3y = 12 . . . . . (2) (1) × 2 2x + 4y = -2 . . . . . (3) (2) - (3) -7y = 14 y = -2 Substitute in (1) x + 2(-2) = -1 x - 4 = -1 x = 3 x=3,y=-2.....like plz for ppints |
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| 74813. |
22: Find the zeros of the puyum23. Solve: 3x + 7y - 11 and 7x -y + 9 = 0 by elimination method.an attitude of equitatal ABC |
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Answer» 3x+7y=11—(i)7x-y=-9—(ii)multiplying (i) by 7 and (ii) by 3 we get21x+49y=7721x-3y=-27—————by subtracting we get52y=104y=104/52y=2substituting the value of y=2 in (i) we get3x+7(2)=113x=11-143x=-3x=-3/3x=-1therefore x=-1 and y=2 x= -1 and y= 2 is correct answer let,3x+7y=11........eqn17x-y+9=0......eqn2 By multiplying eqn2 with 7 we get 49x-7y+63=0.....eqn2 Eliminate eqn1 and eqn23x+7y-11=049x-7y+9=052x. -2=052x=2 x=2/52 x=1/26Put the value of x in eqn1 3(1/26)+7y=11 |
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| 74814. |
EXERCISE 3.41. Solve the following pair of linear equations by the elimination method and the substitutionmethod:xty 5 and 2x -3y 4(ii) 3x+4y= 10 and 2x-2y=2(iii)3x-5y-4-0 and9x = 2y+7(iv) x + 22 =-1 and x-2=3 |
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| 74815. |
3x-5y-=0 and 9x=2y+7 solve by elimination and substitution method |
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Answer» First write the equation as3x - 5y = 4And 9x - 2y = 7 For eliminationMultiply the first eq by 3. This is eq3And the use elimination method that is to suctract the second equation with eq3You will get 13y = - 5y = - 5/13Put it in equation to get xX = 9/13 For substitution1st equation become 3x - 5y - 4 =03x= 4+5yX = 4+5y / 3Substitute this in the other equation and you will get y. |
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| 74816. |
Two third of a. |
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Answer» 2/3 of a is (2a)/3 approx 0.66 a |
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| 74817. |
nc cust 01 16 pĂĽirs of gloves, The weight of 90 books is 50 kg. Find the weight of 180 such books.motorhike travels 165 km in 2 |
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Answer» Weight of one book =90/50=1.8kgHence180 books will weigh 1.8*180=324kg |
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| 74818. |
Samar treated his friends at a fast food restaurant. He ordered4 burgers, 3 cokes and 5 sandwiches. The cost of each of these4.items is:One burger: 11.40, One coke:9.35, One sandwich:5.65.How much money did Samar spend on the treat? |
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| 74819. |
(1) 1 /.5% 01kg3singingeitherA box has 450 apples. Out of which 3 dozens are rotten. Find what percent of apples are good.dergraduate, 25% population is postgraduate while 25% population isjust |
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Answer» Givenno of APPLES=450Rotten= 3 dozen=3*12=36 Now,percentage if apples rotten is 36/450 * 100 = 8 percentTherefore remaining apples are good That is 100-8=92% are good Like if you find it useful |
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| 74820. |
,2 Find the mean weight from the follow29 30 31 32Weight (KgNo. of children 02 01 0410 |
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| 74821. |
4. Fill in the blank boxes with appropriate figureskg = 132000 og (*) 72.531-12(m) 52.63mm m (ip) 68.023 K-() 72.512 dam - dm (01) 1.25 dag -mlmg |
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| 74822. |
(i)S. P12 ; gain = 20%ig a motorcycle foră23,000 a dealer gains 15%. Find its cost price.The cost price of an? 6250. Sudhir sells it at a loss of 24%. Find its sellarticle isI 12. Bob sold his watch for190 |
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Answer» S.P.=23000 profit=15% so C.P.=23000/1.15=20000 C.P.=6250 loss=24% so S.P.=6250×0.76=4750 |
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| 74823. |
15.Findif4,9and12 are in proportion.r,x,16, The cost of 6 notebooks isき270. Find the cost of 15 notebooks |
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Answer» Solution 16. Cost of 6 notebooks= Rs 270 Cost of 15 notebooks= 270*15/6==>Cost of 15 notebooks = Rs 675 |
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| 74824. |
solve the equation by elimination method0.08x + 0.09y = 18600.08y + 0.09x = 1880 |
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| 74825. |
Sunita bought 12 notebooks for168. Find cost of 9 notebooks. |
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| 74826. |
2x + 3y = 0 and 3x + 4y = 5 by elimination method |
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Answer» (2x+3y=0)3=6x+9y=0; 2(3x+4y=5)=6x+8y=10/y=10; 2x+3(10)=0; 2x=-30; x=-30/2=-15 |
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| 74827. |
7. What must be subtracted from each of thSnumbers 23, 40, 57 and 108, so that ta nvrequremainders are in proportion? |
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| 74828. |
r in Fig. 6.31, if PQ 11 ST. Z PQR = 110° and< RST = 130°, find < QRS.Hint : Draw a line parallel to ST throughpoint R.] |
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| 74829. |
u uhed e weight of zinc in it.18. A bus covers 128 km in 2 hours and a train covers 240 km in 3 hourstheir speeds. |
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Answer» Speed of the bus :-Speed = distance ÷ time = 128 ÷ 2 = 64km/hTherefore, the of the bus is 64 kilometers per hour. Speed of the train :-Speed = distance ÷ time = 240 ÷ 3 = 80km/hTherefore, the speed of the train is 80 kilometers per hour. |
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| 74830. |
kn the weignt or 2011 L.A bus covers 128 km in 2 hours and a train covers 240 km in 3 hours. Find the ratheir speeds. |
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Answer» speed=distance timebus=128 ------- 2=64 240÷3=80 64:80 |
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| 74831. |
A washing MUacion it. What is the net selling price?After allowing two successive discounts of 15% and 5%, a fan is sold fornrice of the fan?29 |
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Answer» suppose initial price is x so after successive discount of 15% and 5%x*0.85*0.95=2907so x=2907/(0.85)(0.95)=3600 |
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| 74832. |
pipe1. To make 5apple pies, Abha needs 3 kg of apples. How many kilograms of apples are needed to make 15 pies?Ratio and Proportion |
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| 74833. |
Cost of 1kg apple =12Find cost of 10kg apple |
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Answer» Cost 1 kg apple = 12Cost of 10 kg apple = 12 × 10 = 120 |
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| 74834. |
5. Mr Soni bought some bags of cement, each weighing 49.8 kg. If the total weight ofall. How many pieces does sibags is 1792.8 kg, how many bags did he buy?6. How many niece of |
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| 74835. |
3x + 2y + 25=02x + y +10=0 solve this equation by elimination method |
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| 74836. |
(i) x^2 - 3x - 10 = 0(ii) 2x^2 +x-6=0 |
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Answer» i) x^2-3x-10=0x^2-5x+2x-10=0(x-5)(x+2)=0x=-2,5ii) 2x^2+x-6=02x^2+4x-3x-6=02x(x+2)-3(x+2)=0(2x-3)(x+2)=0so x=-2,3/2 |
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| 74837. |
The angle between two lines is 45° and the slope of one of them is 7 Find the slope of otherline2 |
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| 74838. |
Hence, the requind the discriminant of each1. (i) 2x - 7x + 6 = 0(iii) 2x -5 2x + 4 = 0-10-10 |
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Answer» 2x^2-7x+6=2x^2-4x-3x+6= 2x(x+2)-3(x-2)=0; ( x-2)( 2x-3)=0, 2x=3; x=3/2; x=2 |
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| 74839. |
Tiwo complementary angleielt a dle5.ECTION B: Short Answer Questions (3 marks)4x3=12 marks102. Find the value of x.12。 |
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| 74840. |
In triangle PQR , S and T are points on PQ and PR respectively . if SP =p,QS = 3p+4, RT=8p+9and TP = p+3 for what value(S) if p will make ST parallel QR ? |
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| 74841. |
The cost of a dozen pens is 53.60. Find out the cost of 47 suchpens. |
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Answer» 1 dozen=12 so 12 pens are of 53.60so 47 are of (47×53.60)/12=209.93 |
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| 74842. |
के दर फ ce\ ¢. —— = AN S Q cesec ¢- coX 1- नै 9 |
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| 74843. |
A car needs 19 kg of CNG for covering a distance of 171 km. How much CNG is needed to cThe cost of a dozen pens is 53.60. Find out the cost of 47 such pens2. |
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| 74844. |
15) The net selling price of a dozen pens is7256.50. If successive discounts of 10% and5% were allowed, find the marked price. |
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Answer» Let the marked price be XThen, (100-10)/100 * (100-5)/100 * X = 256.5=> 90/100 * 95/100 * X = 256.5=> X = (256.5*100*100)/(95*90)=> X = ₹ 300 Please hit the like button if this helped you. |
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| 74845. |
6x -3y+10=02x-y+9=0 |
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Answer» 6x - 3y + 10 = 02x - y + 9 = 0 So we have 6/2 = 3/1-3/(-1) = 3/110/9So this is third case therefore no solution Thanks... |
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| 74846. |
7. Aukash bought vegetahles weighing 10kg Out of this,3 kg 500g is onionsis omatnes and the rest is potatoes. What is the weight of the potatoes? |
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Answer» good,😎 |
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| 74847. |
3x-4y = 10 ; 4x + 3y = 5(3) x + 2y = _1 ; 2x-3y = 12in + 6n = 54 ; 3m + 2n =Let |
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| 74848. |
6x-3y + 10= 02x-y + 9=0 |
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Answer» 6x - 3y + 10 = 0 ....... (1)2x - y + 9 = 0 .........(2)eq (1) - eq (2) × 3 6x - 3y +10 - (6x -3y +27) = 010 - 27 = 0-17 = 0, absurd so no solutions exists |
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| 74849. |
6x-3y+10=02x-y+9=0 |
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| 74850. |
u) 3:1v) 2:518. /The exterior angles obtained on producing thebase of a triangle both ways are 104° and 136Find all the angles of the triangle.t - tan- B |
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