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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.
| 63051. |
UNCUCI CHCES.8. How long will a man take to make a round of a circular field of radius 21 m, cycling at thespeed of 8 km/h? |
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| 63052. |
3(56-AE)= 54 . |
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Answer» 3(5.6 - AE) = 5AE 16.8 - 3AE = 5AE 8AE = 16.8 AE = 16.8/8 = 2.1 If you find this answer helpful then like it. |
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| 63053. |
Textbook of Mathematics for Class VIITi.e.,2x_x7x(7 + h) = 968h 15 cmHence, the height of the cylinder is 15 cm.Exercise 10.31. There are two cuboidal boxes asăźă¤150 cm5e emshown in the adjoining figure. Whichbox requires the lesser amount ofmaterial to make?50 cm |
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| 63054. |
a. 35, 51, 89, 55b. 63, 51, 33,9912. Make a bigger and a smaller 2-digit number using the two givendigits and compare.a. 9 and 5b. 4 and 7c. 8 and 2Bolinhos |
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Answer» plz like my comment plz a.99bigger and 90 smaller. 59 bigger 15. Ib.49bigger 14 smaller.c. 89 bigger 12 smaller option b. 4 and 7why 7+4=11and 7-4=3 options b.4 and 7why 7+4= 11and 7-4=3 8 and 2 plz like my comment a)bigger=95,smaller=59difference=95-59=36b)bigger=74&smaller=47difference=74-47=27c)bigger=82&smaller=28difference=82-28=54 bigger 95 smaller 59. difference 36.......74........47difference 27.c...... 82... 28...difference 54. options b.4. and 7why 7+4=11and 7-4=3 bigger 95 smaller 59difference 36 |
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| 63055. |
32915. Find the 11th term from the end in the AP 56, 63, 70,OR |
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| 63056. |
0 kg 950 g. How mucn welkhilesh is 150 cm tall. When he raises his arms up he touches 215 cm. How long isAkhilesh's arm? |
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| 63057. |
5. The diagonals Uail6bus whoseside is Scm and whose alitude is 4.8 cmits area.If one of its diagonals is 8 em long, find the length of the other diagonal.2000 tiles which are rhombus shaped and each of |
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| 63058. |
the product(2x'5) (ax3)G)+s)OR(a) Add: 2x(2-x-y) and 2y (z-y-x)(b) Subtract: 31 (1-4m+5n) from 41(10n-3m +21)orm for Ncert Solutions in Text a |
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| 63059. |
A owne with hemispherical base is having diameter 21 em and slant height 12 cmFind the total surface arca of it. |
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| 63060. |
\begin{array} { l } { \text { If the radius of a sphere is tripled, find the } } \\ { \text { percentage of increase in the surface arca. } } \end{array}3. |
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Answer» 800 percentage |
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| 63061. |
isofthe1. A solid cylinder has a total surface area of 231 cm2. Its curved surface areasuriece arca, ind he volume of the cylnder.total3 |
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| 63062. |
(D)500cm(C) 250cm19. The total surface arca of a hemisphere of radius 14 cm is(a) 1828 cm2(b) 1848 cm2(c)1800cm 220 A cone a einbono |
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| 63063. |
. . . patu cn ‘' ul, lante ono cm in rrom or a plane mirror, how tar would it be from itsWhich property of light makes a pencil cast a shadow when it is held in front of a light source ? |
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| 63064. |
3g - =3変1=e 72 |
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Answer» s-t=3s=t+3 putting this value in 2nd equation,(t+3)/3+t/2=6(2t+6+3t)/6=65t+6=365t=30t=6 |
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| 63065. |
8. The lateral surface arca ofa hollow cylinder is 4224 cmIt is cut along its height and formed a rectangular sheetthe perimeter of rectangular sheet?of width 33 cm. Find |
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| 63066. |
et's Peep into Biology%of a jelly fish is made up of wuman being's body is made up oun Time 8.2Convert the following decim(a) 0.2Find(a) 10% of 1 kg(b) 0.7 |
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Answer» 10/100×1000g100g |
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| 63067. |
4. A class room is 7m long, 6.5m wide and 4m high. It has one door 3mX1.4m and 3 windows, eachmeasuring 2mX1m. The interior walls are to be colour washed. Find the cost of colour washing atthe rate of Rs 5.25 per sq. m(Rs 513.45) |
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Answer» Area of four walls=(2h(l+b))=(2x4(7+6.5))=(8x13. 5)=108m squarearea of one window =3mx1. 4m=4.2m squarearea of three window =3(2mx1m)=6m squaretotal area of windows =(4.2+6)m square=10.2m squareArea for whitewashing =(108-10.2)m square=97.8m square cost of 1 m square white washing = 5.25rupeecost of 97.8m square white washing=5.25x97.8=513.45 rupees please increase my followers... |
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| 63068. |
15-34Mathematics Class X1EXERCISE 15.4Choose the correct answer for each statements1. If general term of an AP is 3n 5 then it common dittwill bea) 1m 2(iii) 3(v) 4 |
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Answer» 4 is the common difference 3 is the correct answer is no doubt. |
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| 63069. |
MATHEMATICS FOR cLEXERCISE- 11 AExpress each of the ratios in sim() 12 18(ii) 27 81 (i) 40:60(v) 56 63() 35 42xpress each of the following in simplest for |
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Answer» 12:18=12/18=2/3=2:327:81=27/81=1/3=1:340:60=40/60=2/3=2:335:42=35/60=5/6=5:656:63=56/63=8/9=8:9 |
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| 63070. |
& MR2. समांन्तर श्रेणी : 2, 6, 10, 14.,... का कौन सा पद 82 हैं |
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Answer» Here, a = 2 d = 6 - 2 = 4 an = 82 an = a + (n - 1)dSubstituting a, d and an,=> 82 = 2 + (n - 1)(4)=> 82 = 2 + 4n - 4=> 82 = 4n - 2=> 4n = 82 + 2=> 4n = 84=> n = 21 Therefore, 82 is the 21st term. |
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| 63071. |
Exercise 1.2(1. SubtractZ from |
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Answer» -3/7-13/5= -15-91/35-106/35=-3.028 So13/5now-3/7-(13/5)-3/7-13/5= -15-91/5= -3.028 |
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| 63072. |
<h one isaworks? hown each daycan!hen she takto.comw |
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| 63073. |
. Ifthe surface arca of a sphere is 154 cm' find its radius |
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Answer» diameter is |
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| 63074. |
à Find the radius of a sphere whose surface area is 154 cm. |
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| 63075. |
What is the perimeter of a square field whose diagonal is 8√2? |
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| 63076. |
10. The area of a square field is 0.5 hectare. The length of its diagonal is |
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| 63077. |
The area of a square field ishectare. Find the length of its diagonal in metres2 |
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Answer» thanks bro |
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| 63078. |
find the volume of a sphere whose surface area is 154 cm^2 |
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| 63079. |
3. The radius of a road roller is 84 cm and its length is 1.4 m. How much area ofthe ground will it press in 500 revolutions?(1) 2640 m2 (2) 3696 m2 (3) 3520 m2 (4) 2560 m2d than cast into small spherical |
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Answer» Curved surface area=2πrh=2(22/7)(84/100)(14/10)=7.39m^2 In 500 revolutions, area pressed=500*7.39=3696m^2 Option 2 is correct please give me live this example |
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| 63080. |
18MATHEMATICSEXERCISE 2.21. If you subtract from a number and multiply the result bythe number?yougetWh |
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Answer» Let the number be x Then,As per given condition(x - 1/2)* 1/2 = 1/8(x - 1/2) = 2/8(x - 1/2) = 1/4x = 1/4 + 1/2x = (1 + 2)/4x = 3/4 Therefore, Number is 3/4 Yes the correct answer is 3/4 |
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| 63081. |
EXERCISE 61. What would you subtract from 78,580 so that the difference is equal to the sum of24,682 and 13,579? |
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Answer» let x subtracted from 78,580.according to the question 78,580-x=24,682+13,57978,580-x=38,261x=78,580-38,261x=40,329 40319 is correct answer of this problem 40319 is the correct answer of the given question |
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| 63082. |
A cylindrical rod which is 25 em long and of 20 cm in diameter is melted to form anotherrod of 19 cm diameter. Find the length of the new rod.17. |
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| 63083. |
A classroom is 7 m long, 6.5 m wide and 4 m high. It has one door measuring 3 m x 1.4 m and three windows,each measuring 2 m x 1 m. The interior walls are to be white washed. The contractor charges 7.25 per sq. m.Find the cost of white washing the interior walls of a classroom. |
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Answer» length of classroom = 7 m width of classroom = 6.5 m and height of classroom = 4 m ∴ Area of the four walls of room = 2h(l+b) = 2 × 4 (7 + 6.5) m^2 = 8 (13.5) m^2 = 108 m^2 Now, dimension of door = 3 m × 14 m ∴ Area of door = 3 × 14 m2= 42 m2 Dimension of 1 window = 2m × 1m ∴ Area of 3 windows = 3 × [ 2 × 1m2] = 6 m2 Area coloured = Area of 4 walls of room – Area of door – Area of 3 window = 108 – 42 – 6 = 60 m2 Cost of colour washing for 1m2= Rs 7.25Cost of colour washing for 60 m2 60 × Rs 7.25 = Rs 435 |
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| 63084. |
What is the area of square field whose side of length 15 m? |
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| 63085. |
НН3. Find the mid-point of the vector joining the points P(ai +37+4h and Qat -2NCERT |
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Answer» please like my answer if you find it useful |
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| 63086. |
i कि रा >> (2 Heo ' - fl_ o का 7हर + (cFd) =0 रो 25o |
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Answer» Given that roots of equation(a^2 + b^2)x^2 - 2(ac + bd)x + (c^2 + d^2) = 0 are equal. Then,4(ac+bd)^2 - 4(a^2 + b^2)(c^2 + d^2) = 0 a^2c^2 + b^2d^2 + 2abcd= a^2c^2 + a^2d^2 + b^2c^2 + b^2d^2 2 abcd = a^2d^2 + b^2c^2 a^2d^2 + b^2c^2 - 2abcd = 0 (ad - bc)^2 = 0 ad = bc a/b = c/d Hence proved |
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| 63087. |
What is the area of a square field whose diagonal of length 20 m? |
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| 63088. |
The area of surface of a cube is 552.96 cm2. Find the volume of the cube.l fh loneest rod that can be placed in a room 30 m long, 2he longest rod that can be placed in a room 30 m long, 24 m broada |
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| 63089. |
49 a^{2}+84 a b+36 b^{2} |
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Answer» 49a*a+84ab+36b*b = (7a)(7a)+2(7a)(6b)+(6b)(6b) = (7a+6b)(7a+6b) |
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| 63090. |
Tuper 100 cm2the radius of a sphere whose surface area is 154 cmde ndius ofa sphere whone sufice ana i 5 c |
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| 63091. |
m^{2}+17 m n-84 n^{2} |
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| 63092. |
wriStudy the patterns in each of the following and find the rule. Using the rule,numbers.a) 3, 6, 9. 12,(b) 2, 6, 10 142.2, 4, 8 16,(d) 7, 11. 13, 16.e98, 91. 85, 79 |
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Answer» 3,6,9,12,15,18,21,24,27 2,6,10,14,18,22,26,30,34 2,4,8,16,32,64,128,256,512,1024 7,11,13,16,20,22,25,29,31,34,37 98,91,85,79,73,67,61,55,49 thank you but how this ans had come could you please explain me |
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| 63093. |
= -24Exercise 8CSubtract:1. 23-1 2. 32-6. 73376WIN |
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Answer» first answer is 4 by 3,firstly 3multiplied by 2 and the add with 2, then the first term converted into 8 by 3 |
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| 63094. |
If a mumber w hen multiplied by 13/3, then the mumber gives 39/12 then the number is |
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| 63095. |
indows measuring 2m x 1m.the rate of Rs 3.50 per m2The interior walls are to be painted. Find the cost of painting at |
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Answer» Area of four walls=(2h(l+b)) =(2x4(7+6.5)) =(8x13. 5) =108m square area of one window =3mx1. 4m =4.2m square area of three window =3(2mx1m) =6m square total area of windows =(4.2+6)m square =10.2m square Area for whitewashing =(108-10.2)m square =97.8m square cost of 1 m square white washing = 3.50rupee cost of 97.8m square white washing=3.50x97.8 =342.3 rupees Like my answer if you find it useful! |
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| 63096. |
A class room is 7m long, 6.5m wide and 4ma high. It has one door 3mwindows measuring 2mthe rate of Rs 3.50per m2,X 1.4m andthreeof painting atx Im.The interior walls are to be painted. Find the cost |
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Answer» Area of four walls=(2h(l+b))=(2x4(7+6.5))=(8x13. 5)=108m squarearea of one window =3mx1. 4m=4.2m squarearea of three window =3(2mx1m)=6m squaretotal area of windows =(4.2+6)m square=10.2m squareArea for whitewashing =(108-10.2)m square=97.8m square cost of 1 m square white washing = 3.50rupeecost of 97.8m square white washing=3.50x97.8=342.3 rupees |
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| 63097. |
28. A cwindowss room is 7m long, 6.5m wide and 4m high. It has one door 3m X 1.4m and threes asuring 2m x 1m. The interior walls are to be painted. Find the cost of painting atthe rate of Rs 3.50 per m'. |
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Answer» Area of four walls=(2h(l+b))=(2x4(7+6.5))=(8x13. 5)=108m squarearea of one window =3mx1. 4m=4.2m squarearea of three window =3(2mx1m)=6m squaretotal area of windows =(4.2+6)m square=10.2m squareArea for whitewashing =(108-10.2)m square=97.8m square cost of 1 m square white washing = 3.50rupeecost of 97.8m square white washing=3.50x97.8=342.3 rupees hit like if you find it useful |
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| 63098. |
12. Find the side of a square field whose area is 81 metre. |
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Answer» as we know the formula of area of square is ( side)^2so (side )^2= 81then side would be √81 ,that is 9 metre |
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| 63099. |
If the weight of 13 metre long rod is 23-4 kgis the weight of 6 metre long rod ?(100L |
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Answer» weight of 13m rod is 23.4 kg So, weight of 1m rod is 23.4 kg/13 So, weight of 6m is 6 × 23.4/13 kg 10.8 kg |
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| 63100. |
ompetfmim" metre long bro |
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