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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.
| 78801. |
-30/(-3*sqrt(2) %2B 4*sqrt(3)) %2B (4*sqrt(3))/(-sqrt(2) %2B 2) - 3*sqrt(2)/(-2*sqrt(3) %2B 3) |
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| 78802. |
-sqrt(2)*sqrt(3)/(3*(-1 %2B sqrt(3)))*(-sqrt(3) %2B 2) %2B (sqrt(2)*(sqrt(3) %2B 2))/((sqrt(3)*(1 %2B sqrt(3)))) |
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| 78803. |
((25^(n %2B 1/4)*sqrt(5.5^n))/((5*sqrt(5^(-n)))))^(1/n) |
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| 78804. |
((1/i)^25 %2B i^18)^3 |
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| 78805. |
(5*p^2 - 25*p %2B 20)/(p - 1) |
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| 78806. |
Find the Rank of the Matrix.\left[ \begin{array}{rrrr}{2} & {3} & {-2} & {4} \\ {3} & {-2} & {1} & {2} \\ {3} & {2} & {3} & {4} \\ {-2} & {4} & {0} & {5}\end{array}\right] |
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| 78807. |
A cylindrical bucket, 32 cm high and with radius of base 18 cm.is filled with sand. This bucket is emptied on the ground and aconical heap of sand is formed. If the height of the conical heap is24 cm, find the radius of the heap. |
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| 78808. |
Two cylindrical vessels are filled with milk. The radius of one vessel is 15 cm andheight is 40 cm, and the radius of other vessel is 20 cm and height is 45 cm. Find theradius of another cylindrical vessel of height 30 cm which may just contain the milkwhich is in the two given vessels |
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Answer» Thanx a lot Dada |
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| 78809. |
13. Two cylindrical vessels are filled with milk. The radius of one vessel is 15 cm andheight is 40 cm, and the radius of other vessel is 20 cm and height is 45 cm. Find theradius of another cylindrical vessel of height 30 cm which may just contain the milkwhich is in the two given vessels. |
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| 78810. |
1. अंत 6:5605 0 का मान है(8) ००5*6 (0) वा 6... (0000% 6... (000०0560% 6 |
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Answer» sin²A.sec²A = sin²A.1/cos²A = sin²A/cos²A= tan²A Ans. |
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| 78811. |
oshsALYSISsəgded to.Think & AnswerWhat do we get when we add o to awhole number?2. What do we get when we divide a wholenumber by 1?Practice TimeLesson 1: Closure and Commutative Propert1. Name the property.A. 19 x 63 = 63 x 19B. a + b = c where a, b, and c are wtnumbers2. Write whether True or False.A. 23 - 3 = 3 - 23B. 863 +671 = 671 + 863C. 341 x 21 = 21 x 341D. 166 = 16 = 16 = 1663. Use the properties of whole numbers tthe last column of the table Do not calcu |
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Answer» 1.(a)commutative property2.(a) false b) truec) trued) false 1.(a)commutative property2.(a) false b) truec) trued) false 1. (a) community proper 2. (a) False(b) true (c) true(d) False so these are your questions answered your ans isa)commutative propertyb)falsec)trued)false 1 communicative property2- 1. a. community proper2. a. falseb.truec. trued. false |
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| 78812. |
8. 264 XII376 x 12312. 271 00911. 392 x 138509 x 179mate each of the following products by rounding off the first number upuecond number downwards:15. 359 x 7614. 267 x 146 |
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| 78813. |
from thefollowingfrequencydistributionNumber of workerAns. 342.73102002. Find the modeExpeuditeye on food(in & Eu a month)300-309310 - 319376 - 329330-- 339340 349350 - 59360 - 3693 70 - 379Totalerwe15190 |
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Answer» mode=342.73 is correct answer. 342.73 is right answer |
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| 78814. |
(-2*2^n %2B 2^(n %2B 4) %2B 2^(-3))/((2*2^(n - 13))) |
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Answer» 2^n+4 - 2.2^n / + 2^-32.2^n+3 = 2^n(2^4 - 2)/ + 1/2^3 2^n(2^4) = (16 - 2)/ + 1/8 16 = 14/16 + 1/8 = 7/8 + 1/8 = 8/8 = 1 |
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| 78815. |
2*n %2B 3=4 |
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Answer» 2x+3=4=>2x= 4-3=>2x=1=>x=1/2 2x +3 =4 => 2x= 4-3=>2x = 1 =>x=1/2 here the given equation is2n+3=4or, 2n=1or,n=0.5 2n+3=4=>2n=4-3=>2n=1=>1/2 2x+3=42x=4_32x=1X=1/2 |
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| 78816. |
(15^(m %2B n - 2)*(10^(m - n)*(2^n*6^(m %2B 1))))/((25^(m - 1)*(3^(2*m %2B n)*4^m))) |
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Answer» happy environment day |
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| 78817. |
6x +5y=Tx +3y + 1कि की T न |
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Answer» 6x + 5y = 7x + 3y + 1 5y - 3y = 7x - 6x + 1 2y = x + 1 |
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| 78818. |
A juiceseller has a large cylindrical vessel of base radius 15 cm filledup to a height of 32 cm with orange juice. The juice is filled in smallcylindrical glasses of radius 3 cm up to a height of 8 cm, and soldfor 15 each. How much money does he receive by selling the juicecompletely? |
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Answer» For large cylindrical vessel r=15,h=32For small cylindrical glass r=3,h=8No. of glass filed with juice=Volume of large cylindrical vessel ÷Volume of small cylindrical glasspir^3h÷pir^2hpi15×15×32÷pi3×3× 8=100Cost for one glass=3Cost for selling 100 glas juice=100×3=300 |
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| 78819. |
123/6 |
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Answer» 123/6=20.5 is the correct answer 20.5 is the correct answer 20.5 is the right answer 123/620.49is the right answer 123/620.5is correct answer 20.5 is a correct answer 20.5 is a correct answer 123/620.49is the right answer 20.5 is the right answer 20.5 is the exact answer 123/6=20.5 is correct answer |
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| 78820. |
(i) \frac{\cos 7 x+\cos 5 x}{\sin 7 x-\sin 5 x}=\cot x |
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| 78821. |
123*376 |
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Answer» 376*123=46248 is the answer answer of your question is 462488 answer of your question is 46248 |
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| 78822. |
This method is.illustrated in the next example.0,Example 8find the roots ofthe equation 5x2-6x2-0by the method of completinghe sadare. |
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Answer» 5x^2 -6x -2 = 0 x^2 -(6/5)x -(2/5) = 0 (x)^2 - [2.(3/5).x] + (3/5)^2 - (3/5)^2 -(2/5) = 0 [x-(3/5)]^2 = (2/5)+(9/25) [x-(3/5)]^2 = (19/25) x-(3/5) = √19/5 x = (3/5) ± √19/5 Roots of the equation are x = [3+(√19)]/5 x = [3-(√19)]/5 thank u |
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| 78823. |
'sample 8: Find the roots of the equation 5x2 - 6x - 2 = 0 by the method of completingthe square.. 1.bbhala |
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Answer» 5x^2 - 6x - 2 = 0 x^2 - (6/5)x - (2/5) = 0 (x)^2 - [2.(3/5).x] + (3/5)^2 - (3/5)^2 - (2/5) = 0 [x - (3/5)]^2 = (2/5) + (9/25) [x - (3/5)]^2 = (19/25) x - (3/5) = √19/5 x = (3/5) ± √19/5 Roots of the equation are x = [3 + (√19)]/5 & x = [3 - (√19)]/5 |
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| 78824. |
$ O Write whether true or false,A. The expanded form of 5,398 is 5,000 + 300 + 90 + 8.B. The expanded form of 7.468 is 7,000 + 40 + 60 + 8.C. The expanded form of 2,059 is 2 + 0 + 500+ 9,000 |
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Answer» 1. True 2. False 3. False The expanded form 5,398 is 5,000+300+90+8. 1 true 2 false. 3 false 1 true2 false3 false 1 True 2 False 3 False 1 true 2 false3 false 1 True 2 false 3 false 1 True 2 false 3 false A.trueB.false C.false 1.TRUE2.FALSE3FALSE A - trueB - falsec - false A. TB. FC. F ok sukhpreet my name is Ananya 1. True 2. False3. False 1.true 2.false3.false 1st true2nd false 3rd false 1. True2. False3. False 1-true,2-true,3-false True False False........... A. true, B . false. C. false A. trueB. falseC. false 1. True2. True3. False question no-1 true and all other false A TrueB. FalseC. False The expanded form of 2,059is+2+0+500+9,000 which of these plants absorbs food from other sources a.trueb.falsec.false a-trueb-falesc-fales 5398 is 5000+300+90+8 is ture 1 true, 2 false, 3 false A is true , B is false and C is false The correct answer is true false false 1true 2true 3false . 1. True2. Fals3. Fals 1.True2.False3.False 1. true 2.false 3.false 1-true2-false3-false 1.true2.false3.false the expat frome 5398 =5000+300+90+8 answer given as:-(A):-true(B):-false(C):-false A is true,B and C is false A. TrueB. FalseC. False true false false ok brother a...rightb and c...wrong 1 true 2 false 3 false 1 . true 2. False 3. False 1. True 2. false 3. false in this above question ....We can see that A is true and B&C are not expanded form of their numbers A trueB falseC false The expanded form of 5398 is 5000+300+90+8 A-trueB-falseC-false , A option is the true 1. true 2. false3.False a trueb false c false (1) true(2) false(3) false (A)true b.falsec..false there are option a true |
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| 78825. |
ich NameRationalND Using appropriate properties1) - x3 +를 공공 |
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| 78826. |
ldots %2B 1/(0.5*3.4) %2B 1/(0.4*2.3) %2B 1/(0.3*1.2) %2B 1/((n %2B 2)*n(n %2B 1))=n(n %2B 3)/((4*((n %2B 1)*(n %2B 2)))) |
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Answer» n(n+3)/4( n-1)(n+2); 3(3+3)/4(4-1)(4+2)=3(6)/4(3)(6)=18/12(6)=18/72=9/36=3/6 |
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| 78827. |
2) Two cones with same base radius 8 cm and height 15 cm are joined together along their bases. Find thesurface area of the shape so formed. |
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| 78828. |
\left(4 x^{4}-5 x^{3}-7 x+1\right) \div(4 x-1) |
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| 78829. |
2. Pind the soppiement of each as0 se 105 123y andles, the measure of the langer angle is 36 |
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Answer» Supplementary angles1.100°2.126°3.75°4.57° |
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| 78830. |
Pind two numbers whose product is a 1-digit number and the sum is a 2-digit number.um are equal |
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Answer» 1*9=91+9=10 is the answer 1*9=91+9=10 is the answer |
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| 78831. |
Q.17. Pind the roots of the equation 5x26x-2 = 0 by the method of completing the square. |
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| 78832. |
1/(-1/3 %2B 1/2) %2B 1/(-1/8 %2B 1/6) |
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| 78833. |
The speed of the car is reduced from 108 km/hr to36 km/hr in 4.0 s. What is the distance travelled bycar during this time interval?2) |
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Answer» Reduced speed = 108-36= 72, d= 72* 4=288 km |
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| 78834. |
7:Ram travelled3 km by car, 213 km by train and 45 km bybus. What is the total distance travelled by Ram24 |
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| 78835. |
12. The radii of the circular ends of a bucket of height 15 cm are 14 cm andr cm (r < 14). If the volume of bucket is 5390 cm3, find the value of r.[CBSE 2011] |
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| 78836. |
The radii of the circular ends of a bucket of height 15cm are 14cm and r cm(r < 14cm). If thevolume of bucket is 5390 cm3, then find the value of r. [use Tt 22/7)15. |
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| 78837. |
The adjacent sides of a parallelogram are 7.5 cm and 4 em. If the distance between the longersides is 2 cm, find the distance between the shorter sides.. |
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Answer» it is 24 cm 2 |
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| 78838. |
If sinx+siny=√3(cosy-cosx)then prove that sin3x+sin3y=0 |
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Answer» thanks |
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| 78839. |
\left(\frac{x+1}{x-1}-\frac{x-1}{x+1}-\frac{4 x}{x^{2}+1}\right)+\frac{4 x}{x^{4}-1} |
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Answer» (x+1)/(x-1) - (x-1)/(x+1) =(x^2+2x+1-x^2+2x-1)/(x^2-1)=(4x)/(x^2-1) 4x/(x^2-1) - 4x/(x^2+1) =(4x^3+4x-4x^3+4x)/(x^4-1)=8x/(x^4-1) (8x/(x^4-1))/((4x)/(x^4-1))=2 |
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| 78840. |
60. 1+2/4+1/4+3/47/4a) 2 1 |
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Answer» 60. 1+2/4+1/4+3/4 = 5/2 |
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| 78841. |
a ^ { 1 / 3 } + b ^ { 1 / 3 } + c ^ { 1 / 3 } = 0 , \text { prove that } ( a + b + c ) ^ { 3 } = 27 a b c |
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| 78842. |
bers greater than-2Pind en aion huewenadWHAT HAKD |
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Answer» Ten rational numbers between3/5 and 3/4 First take lcm of 5 and 4 Now numbers become12/20 and 15/20 Now Multiply and divide each rational number by 4 Hence, we get rational numbers 48/80 and 60/80 Therefore, ten rational numbers between 48/80 and 60/80 are49/80, 50/80, 51/80, 52/80, 53/80, 54/80, 55/80, 56/80, 57/80, 58/80 |
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| 78843. |
find the intervals for increasing a decreasing$(x) = 2x3-9x2 +12x. +15Ans. Inc. 3-0,1[v] 2,0[.Dec. TIL |
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| 78844. |
4 sin's + siny tsin'z = 31then find value of 1 1 1 1 18 |
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Answer» For each inverse pie÷2so sininverse of x=pie÷21÷x+1÷y+1÷z=3 |
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| 78845. |
17 10620, lly-x siny, prov e that(x-dr),, (dosy)- x cosdyy |
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Answer» This is an trigonometric function which is in the form ofu.v. So todifferentiatethis function, you need to know the differentiation ofu.vfunction. Thus,d/dx(u.v)=u.dv/dx+v.du/dx Like my answer if you find it useful! |
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| 78846. |
3. Velocity of a bus moving with 36km/hr increases to 72km/hr in 20s find itsacceleration?2 |
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| 78847. |
(c) Tropic of CancerTorrid zone is located betweenquator(d) Tropic df(a)/231/20N and 23 1 20 S(b) 66 %°M(d) 23 1/20S and 66 /S |
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Answer» TheTorridis also known as the Tropics. Thezoneis bounded on the north by the Tropic of Cancer and on the south by the Tropic of Capricorn; these latitudes mark the northern and southern extremes in which the sun seasonally passes directly overhead.Option A |
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| 78848. |
car travelled 60 km to the north of Patna and then 90 km to the south from there. How farom Patna was the car finally?bought some pencils for 30 and some pens for 90. The next day, he again boughtpencils for? 25. Then, he sold all the pencils for? 20 and the pens for 70. What wasmanmenet gain or loss? |
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| 78849. |
find the number of persons in the group.A car covers first 100 km of his journey at 50 km/h, next 50 km at 40 km/hJourney at 50 km/h, next 50 km at 40 km/h and last 75 kmFind the average speed of the whole journey.techool at |
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Answer» 100 km at the speed of 50 km/ph, time = 100/50 = 2 hr 50 km at the speed of 40 km/hr, time = 50/40 = 5/4 hr. 75 km in 5/4 hr. ER. RAVI KUMAR ROY. AVERAGE SPEED = Total distance travelled / Total time taken = ( 100 + 50 + 75 )/(2 + 5/4 + 5/4) = 225/(18/4) = (225 X 4)/18 = 50 km/hr the correct answer is C 50km hoga sayad kyuki tsquare = d/s |
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| 78850. |
11.During five successive hours a car covered 65 km, 72 km, 68 km, 70 km and 55 km. Findthe average speed of the car per hour. |
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Answer» average speed = total distance /time = 65 + 72 + 68 + 70 + 55/5= 330/5= 66 km/hrso the average speed of the car is 66 km/hr. 66 km/hr average speed of car is the best answer the average speen is 66km/hr the right answer is 66km per hour 66 km/hour answer...... 66 km/hr is the best solution. |
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