81279 + Interview Questions in Mathematics QA in Mathematics

1.	EXERCISE 15.1a anoken match, a hatswoman hits a boundary b times out oi 30 hails siugleys Fuau probabiliny thai she did not bi a boundary
Answer»

Discussion

2.	56. The value of 248 + 152 + V144, is(a) 17(b) 16(c) 15(d) 14
Answer» First find the squre root of 144 ..than add to 52 ..we will get 64 ..again find the sqaure root of 64. we will get 8 as ans and after that we add that to 248 and we will get 256 ..than at last find the sqaure root of 256 ans will be 16 answer is option b do you want me to work it out and get a pic option b is the correct answer yo homie I told you what I told you man {b} 16 is the correct answer First see the numbers and take square root for 144 and add the digits to the another you can get the answers 16 is the correct answer h not answer this question (B) 16 correct answer the answer is root 16 16 is the correct answer 16 is the correct answer 16 is the right answer this question is correct answer 16 b is the right answer for the question option b is the right answer √248+√52+12√248+√64√248+8√256 = 16 ans. ans (b) 16 is the right answer 16... is Right answer... 16 is the correct answer. the answer of this question is 16 b.......................... answer is 16 for this question answer (b) is correct √16 is correct answer option b is right answer hoga find first square root of 1 4 3 then at 50 we will get 64 again find square root of 64 16 is the correct answer of the given question √16 is correct answer......... option (b) is the right answer 16 is correct answer (B) √16 is the correct answer the answer is root 16. accurate answer will be options (b) . b.................... the question answer is, b=16 (B) is the answer of this question Root 144 is 1252+12 is 64 and root 64 is 8248+8is256 and root 256 is 16.hence Ans is 16 option (b) 16 is the right answer the answer will be 16 (b) 16 is correct answer 16 your question answer the correct answer is 16 16 is the answer of your question The write Anwer is (b) which is 16 √248+√52+12√248+√64√248+8√25616 16 is answer of this question. 16 is correct answer of this question aption b. answer 16. 16 your Questions Answer 16 is the correct answer. b......................... b.......... .......... 16 is the right answer 16 is a correct answer 16 is the right answer of the questions it's answer is (b) 16 correct answer is option (b)16

2.

56. The value of 248 + 152 + V144, is(a) 17(b) 16(c) 15(d) 14

Answer»

First find the squre root of 144 ..than add to 52 ..we will get 64 ..again find the sqaure root of 64. we will get 8 as ans and after that we add that to 248 and we will get 256 ..than at last find the sqaure root of 256 ans will be 16

answer is option b do you want me to work it out and get a pic

option b is the correct answer

yo homie I told you what I told you man

{b} 16 is the correct answer

First see the numbers and take square root for 144 and add the digits to the another you can get the answers

16 is the correct answer h

not answer this question

(B) 16 correct answer

the answer is root 16

16 is the correct answer

16 is the right answer

this question is correct answer 16

b is the right answer for the question

option b is the right answer

√248+√52+12√248+√64√248+8√256 = 16 ans.

ans (b) 16 is the right answer

16... is Right answer...

16 is the correct answer.

the answer of this question is 16

b..........................

answer is 16 for this question

answer (b) is correct

√16 is correct answer

option b is right answer hoga

find first square root of 1 4 3 then at 50 we will get 64 again find square root of 64

16 is the correct answer of the given question

√16 is correct answer.........

option (b) is the right answer

16 is correct answer

(B) √16 is the correct answer

the answer is root 16.

accurate answer will be options (b) .

b....................

the question answer is, b=16

(B) is the answer of this question

Root 144 is 1252+12 is 64 and root 64 is 8248+8is256 and root 256 is 16.hence Ans is 16

option (b) 16 is the right answer

the answer will be 16

(b) 16 is correct answer

16 your question answer

the correct answer is 16

16 is the answer of your question

The write Anwer is (b) which is 16

√248+√52+12√248+√64√248+8√25616

16 is answer of this question.

16 is correct answer of this question

aption b. answer 16.

16 your Questions Answer

16 is the correct answer.

b.........................

b.......... ..........

16 is the right answer

16 is a correct answer

16 is the right answer of the questions

it's answer is (b) 16

correct answer is option (b)16

Discussion

3.	कि =(5) उपू- A LIRS S0l es o—b," 'h?u» Vi W.:‘M,,WJ.& PY"Ld".[’" नह ९५८४, (लि फी पएिप्प्ट-जप्छ रिप डवर्व6०- ही... s e Jj,‘,न.कि o : .
Answer» Let the circle touches the sides BC, CA, AB of the right triangle ABC(right angled at C) at D, E and F respectively, where BC= a, CA=b , AB= c respectively Since lengths of tangents drawn from an external point are equal So, AE = AF and BD = BFAlso CE = CD = rand b-r = AF, a- r = BF Therefore, AB = AF + BFc = b-r + a-r Hence, r = a+b-c/2

3.

कि =(5) उपू- A LIRS S0l es o—b," 'h?u» Vi W.:‘M,,WJ.& PY"Ld".[’" नह ९५८४, (लि फी पएिप्प्ट-जप्छ रिप डवर्व6०- ही... s e Jj,‘,न.कि o : .

Answer»

Let the circle touches the sides BC, CA, AB of the right triangle ABC(right angled at C) at D, E and F respectively, where BC= a, CA=b , AB= c respectively

Since lengths of tangents drawn from an external point are equal

So, AE = AF and BD = BFAlso CE = CD = rand b-r = AF, a- r = BF

Therefore, AB = AF + BFc = b-r + a-r

Hence, r = a+b-c/2

Discussion

4.	ocos y - sin x sin y3cos +y)Consider the uncicile withthe angle POP Then (x+3)centre at the origin. Let.x be the an+1) is the angle POP.. Also let (-y) be the:Therefore, P. P P, and P, wР.leos cr +y, sin (x +3% P,Icos (-у), sin (-У)] and P. (1. 0)(Fire:P. P, and P, will have the coordinates P
Answer» Draw first the two anglesaaandbbin the trigonometric circle. ProjectAEAEonADAD. Since\|AE\|=1\|AE\|=1and that the triangleADEADEis rectangle inDD, you have that\|AD\|=cos(b)\|AD\|=cos⁡(b)and\|ED\|=sin(b)\|ED\|=sin⁡(b). Now projectADADonACAC, since the triangleACDACDis rectangle inCCand that\|AD\|=cos(b)\|AD\|=cos⁡(b), you have that\|CD\|=cos(b)sin(a)\|CD\|=cos⁡(b)sin⁡(a)and\|AC\|=cos(a)cos(b)\|AC\|=cos⁡(a)cos⁡(b). Finally projectEDEDonEFEF. The angleFEA^=aFEA^=a. Moreover, the triangleEFDEFDis rectangle onFFand thus\|EF\|=cos(a)sin(b)\|EF\|=cos⁡(a)sin⁡(b)and\|FD\|=sin(a)sin(b)\|FD\|=sin⁡(a)sin⁡(b). Now, just remark that\|FB\|=\|CD\|\|FB\|=\|CD\|and\|BC\|=\|FD\|\|BC\|=\|FD\|and you get sin(a+b)=\|EF\|+\|FB\|=cos(a)sin(b)+sin(a)cos(b)sin⁡(a+b)=\|EF\|+\|FB\|=cos⁡(a)sin⁡(b)+sin⁡(a)cos⁡(b) and cos(a+b)=\|AC\|−\|BC\|=cos(a)cos(b)−sin(a)sin(b) thanks

4.

ocos y - sin x sin y3cos +y)Consider the uncicile withthe angle POP Then (x+3)centre at the origin. Let.x be the an+1) is the angle POP.. Also let (-y) be the:Therefore, P. P P, and P, wР.leos cr +y, sin (x +3% P,Icos (-у), sin (-У)] and P. (1. 0)(Fire:P. P, and P, will have the coordinates P

Answer»

Draw first the two anglesaaandbbin the trigonometric circle. ProjectAEAEonADAD. Since|AE|=1|AE|=1and that the triangleADEADEis rectangle inDD, you have that|AD|=cos(b)|AD|=cos⁡(b)and|ED|=sin(b)|ED|=sin⁡(b). Now projectADADonACAC, since the triangleACDACDis rectangle inCCand that|AD|=cos(b)|AD|=cos⁡(b), you have that|CD|=cos(b)sin(a)|CD|=cos⁡(b)sin⁡(a)and|AC|=cos(a)cos(b)|AC|=cos⁡(a)cos⁡(b). Finally projectEDEDonEFEF. The angleFEA^=aFEA^=a. Moreover, the triangleEFDEFDis rectangle onFFand thus|EF|=cos(a)sin(b)|EF|=cos⁡(a)sin⁡(b)and|FD|=sin(a)sin(b)|FD|=sin⁡(a)sin⁡(b). Now, just remark that|FB|=|CD||FB|=|CD|and|BC|=|FD||BC|=|FD|and you get

sin(a+b)=|EF|+|FB|=cos(a)sin(b)+sin(a)cos(b)sin⁡(a+b)=|EF|+|FB|=cos⁡(a)sin⁡(b)+sin⁡(a)cos⁡(b)

and

cos(a+b)=|AC|−|BC|=cos(a)cos(b)−sin(a)sin(b)

thanks

Discussion

5.	20. Prove that the line joining the mid-point of a chord to the centre of thecircle passes through the mid-point of the corresponding minorarcthe given figure AR and CD are tur un3
Answer»

Discussion

6.	H. The standard equation of an ellipse, the lengthof whosw major and minor axes are 10 and8respectively is
Answer» 2a = 10. => a = 5.2b = 8=> b = 4. x^2/25 + y^2/16 = 1 is the equation of the ellipse.

Discussion

7.	1. The strange thing about the man who arrived at the Coach and Horses inn was....
Answer» When the strange man arrived in bramblehurst station. He enters with the coach and horse in demand him a room and a fire. And at last The Invisible Man out of the inn.

Discussion

8.	Findthe equation of an ellipse whose axes lie along coordinateaxes and which passes through (4,3) and (-1,4).
Answer»

Discussion

9.	C0-ordlnate axeSFind the equation of the plane which is parallelto the plane x+5y-4z +5 0 and the sum ofintercepts on the axes is 15 unitss.ind tx+116. Flane whose intercepts10r+2y
Answer»

Discussion

10.	5. Solve the following:1) Give two examples of parallel lines you can see in your environment.
Answer» 1 .The two opposite banks of a river. 2.The two opposite edges of a straight road.3.The two opposite edges of a railway track. 4.The two opposite edges of a ladder...

Discussion

11.	tain rosses a Lelearapth postandl au11ん.cyLosees a64 msecomo)820 keam
Answer» let the speed of the train be V so, length of train will be L = V8 ......(1) and for bridge the equation will be (L+264) = V20.......(2) => divide eq 2 by 1 we get (L+264)/L = 20/8=> 8L + 2112 = 20L=> 12L = 2112 or length of train = 2112/12 = 176 m and speed = 176/8 = 22 m/s. 79.2 is and Speed =dist/time =264/(tfinal-tinitial) = 264/12 =22m/s check your unit.. I have reported answer in m/s... convert it into km/h... you will get your answer. 22m/s = 22*18/5 = 79.2km/h

11.

tain rosses a Lelearapth postandl au11ん.cyLosees a64 msecomo)820 keam

Answer»

let the speed of the train be V

so, length of train will be L = V*8 ......(1)

and for bridge the equation will be

(L+264) = V*20.......(2)

=> divide eq 2 by 1 we get

(L+264)/L = 20/8=> 8L + 2112 = 20L=> 12L = 2112 or length of train = 2112/12 = 176 m

and speed = 176/8 = 22 m/s.

79.2 is and

Speed =dist/time =264/(tfinal-tinitial) = 264/12 =22m/s

check your unit.. I have reported answer in m/s... convert it into km/h... you will get your answer.

22m/s = 22*18/5 = 79.2km/h

Discussion

12.	Thevalueof(-10)+92+84+(-15) is(A) 150(B) 152(C) 161(D)
Answer»

Discussion

13.	U11Q.1 Subtract (3a² bc) from (- 13a2bc + 5)
Answer» -16asquare2+5 is a right

Discussion

14.	uvu anu > wviues leaving ICC J0Jcuci cu(3) A boy saves 4.65 daily. Find the least number of days in which he will be able to save an exact number ofrupees.
Answer» 4.65*20=9320 days is the right answer

Discussion

15.	प्रतियोगिता5/नीचे दी गई आकृतियों में प्रश्नवाचक चिह्न (?) के स्थान पर कौन-सीसंख्या आएगी?(144)(A)152(C)176(B) 162(D)104
Answer» 104 is the right..... 104 is the right answer 104 is the right answer right answer 104 104 is my answer but I cannot say it's correct 144: is the right answer 104 is the right answer (D) 104 is correct answer 104 is the right answer. plz like my answer 104 is a correct answer 104 is the correct answer option (d) ,104 is the right answer option (d), 104 is the right answer 104 is the correct answer 104 is the right answer

15.

प्रतियोगिता5/नीचे दी गई आकृतियों में प्रश्नवाचक चिह्न (?) के स्थान पर कौन-सीसंख्या आएगी?(144)(A)152(C)176(B) 162(D)104

Answer»

104 is the right.....

104 is the right answer

right answer 104

104 is my answer but I cannot say it's correct

144: is the right answer

104 is the right answer

(D) 104 is correct answer

104 is the right answer.

plz like my answer

104 is a correct answer

104 is the correct answer

option (d) ,104 is the right answer

option (d), 104 is the right answer

104 is the correct answer

104 is the right answer

Discussion

16.	(ଚତୁ ।I)\|_5.ପାର୍ବସ୍ଥ ଚିତ୍ର 152 ରେ AB \|\| CD ଏବଂ AD \|\| BC । ଚିତ୍ରରୁx,y, ର ମାନ ସ୍ଥିର କର ।(ଚିତ୍ତି ।.52)C[29]
Answer»

Discussion

17.	prove that the right bisector of a chord of a circle bisects the correspondingminor arc of the circle
Answer»

Discussion

18.	5. The length of major and minor axes of theellipse 3x2 +2y2- 18 are
Answer»

Discussion

19.	ve that the right bisector of a chord of a circle bisects the correspondingminor arc of the circle.
Answer»

Discussion

20.	Tlthoninteenthterm of thethe value(s) of k for which the pair of linear equationehs sy and shy haveAP.infinitely many solutions
Answer» Equations given kx + y = k^2andx + ky = 1 Since the equations have infinitely many solutionsThuscomparing the coefficients of x and y k/1 = 1/k = 2k/1 thusk = +1 or -1k = +1/ root2 or -1/ root2

20.

Tlthoninteenthterm of thethe value(s) of k for which the pair of linear equationehs sy and shy haveAP.infinitely many solutions

Answer»

Equations given

kx + y = k^2andx + ky = 1

Since the equations have infinitely many solutionsThuscomparing the coefficients of x and y

k/1 = 1/k = 2k/1

thusk = +1 or -1k = +1/ root2 or -1/ root2

Discussion

21.	Nidhi saves Rs. 2 on first day of the month, Rs, 4 on second day, Rs. 6 on third day and so on.Read the above passage and answer the following questions:(0 What will be her saving in the month of February?(ii) What value is depicted by Nidhi?
Answer» Let n = 29 daysd =common differencelet s = savings=n/2 (2a+(n-1)2)s=29/2(22+(29-1)2)s=29/2(4+282)s=29/2(56+4)s=29260s=29*30s=870

Discussion

22.	\|9.Meeta saves?400 from her salary. Ifthis is 10%of her salary. What is her salary?
Answer»

Discussion

23.	ho did liol vote. CuMeeta saves? 400 from her salary. If this is 10% of her salary. What is her salary?It lyon 25% of them. Howon
Answer» if 10 percentage is 400then 100 percentage will be 4000

Discussion

24.	I UUGILFind any three amazing pattern of numbersFor Example (1)2 = 1(11)2 = 121(111)2 = 13234 12321(1111)2 = 1234321
Answer» 1 x 9 + 2 = 11 12 x 9 + 3 = 111 123 x 9 + 4 = 1111 1234 x 9 + 5 = 11111 12345 x 9 + 6 = 111111 123456 x 9 + 7 = 1111111 1234567 x 9 + 8 = 11111111 12345678 x 9 + 9 = 111111111 123456789 x 9 +10 = 1111111111

Discussion

25.	a) 150 cm2b) 152 cm2c) 154 cm2d) 156 cm2
Answer»

Discussion

26.	Find the curved surface area of a cone of radius 7 cm and height 24 cm.a, 440 cm2 b, 550 cm2c. 330 cm2d. 110 cm2
Answer»

Discussion

27.	A piece of wire is cut into two parts in the ratio 2:3. If the length of the longer piece is 81 cm.find the length of the shorter piece.
Answer» let X be the common multiplehence wire will be in 2x and 3xlength of longer piece that is 3x=81hence X=81/3=27cmhence shorter piece will be 2x=2*27=54cm

Discussion

28.	3 The outer and inner diameters of a circular ring are34 cm and 32 crn, respectively. Then, find the area ofCBSE 2011ring.
Answer»

Discussion

29.	Find the area oi the minor segment of a circle of radius 42cm. if length of the correspondinare is 4icnm.
Answer»

Discussion

30.	Salma borrowed from Mahila Samiti a sum of ? 1875 to purchase a sewing machine.ifthe rate of interest is 4% per annum, what is the compound interest that she has to payafter 2 years?
Answer» P=rs.1875R=4%T=2 years we know,A=P(1+R/100)^2=1875(104/100)^21875104/100104/100=2,02,80,000 CI=A-P=2028-1875=153

30.

Salma borrowed from Mahila Samiti a sum of ? 1875 to purchase a sewing machine.ifthe rate of interest is 4% per annum, what is the compound interest that she has to payafter 2 years?

Answer»

P=rs.1875R=4%T=2 years

we know,A=P(1+R/100)^2=1875(104/100)^21875*104/100*104/100=2,02,80,000

CI=A-P=2028-1875=153

Discussion

31.	Find five rational numbers betweenand
Answer» 19/30,20/30,22/30,22/30,23/30

Discussion

32.	Nidhi asked Meeta to think of a number. Then she asked to double it to and add 8 to it. If the result was 36. what number did Meeta think
Answer» 36-8=28 is the right answer 28 is the correct ans 14 is the correct ans 28 is the correct answer 14is the correct answer...14×2 =2828+8 =36..meena think 14 number 36-8=28 is the best answer the number meena think is 14 28 is right answer of this question .please like my answer 28 is the correct answer 28 is the correct answer of the given question

32.

Nidhi asked Meeta to think of a number. Then she asked to double it to and add 8 to it. If the result was 36. what number did Meeta think

Answer»

36-8=28 is the right answer

28 is the correct ans

14 is the correct ans

28 is the correct answer

14is the correct answer...14×2 =2828+8 =36..meena think 14 number

36-8=28 is the best answer

the number meena think is 14

28 is right answer of this question .please like my answer

28 is the correct answer

28 is the correct answer of the given question

Discussion

33.	20. Find the area of the minor segment of a circlc of radius 42cm, if length of the corresponding3arc is 44cm.
Answer» Like if you find it useful!

Discussion

34.	Find the area of the minor segment of a cdircle of radius 42em, if length of the corresponding arc is 443crn.
Answer» From which book have you taken this question? Please tell us so that we can provide you faster answer.

Discussion

35.	The perimeter of a parallelogram is 60 cmthe ratio of its adjacent sides is 3: 2. If thealtitude corresponding to the larger side of theparallelogram is 5cm. Find the area of the parallelogramand the altitude corresponding to the smaller side.
Answer» GivenRatio of side =3:2Perimeter =60cmAltitude =5cm So let take one side as 3x and other is 2x Then perimeter of parallelogram =3x+2x+3x+2x=10x According to question perimeter =60cm Then 10x=60cm X=60/10=6cm Then one side is =6 x 3=18 And other is =2x6=12 So base=18cm Area of parallelogram =bxh =18x5=90cm² Altitude corresponding to smaller side 90=12xh H=7.5cm

35.

The perimeter of a parallelogram is 60 cmthe ratio of its adjacent sides is 3: 2. If thealtitude corresponding to the larger side of theparallelogram is 5cm. Find the area of the parallelogramand the altitude corresponding to the smaller side.

Answer»

GivenRatio of side =3:2Perimeter =60cmAltitude =5cm

So let take one side as 3x and other is 2x

Then perimeter of parallelogram =3x+2x+3x+2x=10x

According to question perimeter =60cm

Then 10x=60cm X=60/10=6cm

Then one side is =6 x 3=18

And other is =2x6=12

So base=18cm

Area of parallelogram =bxh

=18x5=90cm²

Altitude corresponding to smaller side

90=12xh

H=7.5cm

Discussion

36.	Find the area of the minor segment of a circle of radius 42cm, if length of the correspondingarc is 44cm.20.3
Answer» Like my answer if you find it useful!

Discussion

37.	19. Findthe area of the minor segment of a circle of radius 42cm, if length of the correspondingarc is 44cm.
Answer» Radius = 42cmLength of Arc = 2πrtheta/36044 = 2×22/7×42×theta/360Theta = 60°Area of minor segment = πr²theta/360×1/2×r²sintheta.= 22/7×42×42×60/360×1/2×42×42×sin60° [ sin60°= ✓3/2]

Discussion

38.	Find fiverational numbers between 5and5
Answer»

Discussion

39.	Find the area of the minor segment of a circle of radius 42cm, if length of the correspondingarc is 44cm
Answer» Suppose r is the radius of the circle, and say a chord AB subtends an angle ∅ at its center O, then the Length of the corresponding sector,l = r∅. Given r = 42 cm and l = 44 cm => 44 = 42∅ => 22 = 21∅ => ∅ = 22/21 = π/3. Area of the sector so formed is given by A = 1/2r²∅ Area of minor segment is given by = Area of sector - Area of triangle OAB = 1/24242π/3 - 1/24242sin(π/3) =882(π/3 - √3/2) cm² Like my answer if you find it useful!

39.

Find the area of the minor segment of a circle of radius 42cm, if length of the correspondingarc is 44cm

Answer»

Suppose r is the radius of the circle,

and say a chord AB subtends an angle ∅ at its center O, then the

Length of the corresponding sector,l = r∅.

Given r = 42 cm and l = 44 cm

=> 44 = 42∅

=> 22 = 21∅

=> ∅ = 22/21 = π/3.

Area of the sector so formed is given by A = 1/2*r²*∅

Area of minor segment is given by

= Area of sector - Area of triangle OAB

= 1/2*42*42*π/3 - 1/2*42*42*sin(π/3)

=882(π/3 - √3/2) cm²

Like my answer if you find it useful!

Discussion

40.	X. X,....X, are n observations such that3x = 400 andandx = 80 then the least MBi=1i=1value of n isIT AMC
Answer» a is the right answer n=7 is the right answer n=7 is the right answer n=7 is the right answer n=7 is the correct answer

40.

X. X,....X, are n observations such that3x = 400 andandx = 80 then the least MBi=1i=1value of n isIT AMC

Answer»

a is the right answer

n=7 is the right answer

n=7 is the correct answer

Discussion

41.	65400รท x 400100
Answer» 400 + (65/100)400 Using BODMAS rule first we perform multiplication and then addition = 400 + 654= 400 + 260= 660

41.

65400รท x 400100

Answer»

400 + (65/100)*400

Using BODMAS rule first we perform multiplication and then addition

= 400 + 65*4= 400 + 260= 660

Discussion

42.	Which angles are corresponding angles?POL and 2KLOLPOL and ZMLOPOL and 2M
Answer» angle POL and angle MLJ are corresponding angles option (4) is correct

42.

Which angles are corresponding angles?POL and 2KLOLPOL and ZMLOPOL and 2M

Answer»

angle POL and angle MLJ are corresponding angles

option (4) is correct

Discussion

43.	Which angles are corresponding anglesFGI and 4CDGFGI and L.HGDFGI and EDGZFGI and ZCDB
Answer» angle FGI and angle CDG are corresponding angles (1) option is correct

43.

Which angles are corresponding anglesFGI and 4CDGFGI and L.HGDFGI and EDGZFGI and ZCDB

Answer»

angle FGI and angle CDG are corresponding angles

(1) option is correct

Discussion

44.	pairs of corresponding angles
Answer» Pair of correspondings angles are supplementry angles those which are parallel to each other are corresponding angle those which are parallel to each other are corresponding

44.

pairs of corresponding angles

Answer»

Pair of correspondings angles are supplementry

angles those which are parallel to each other are corresponding

angle those which are parallel to each other are corresponding

Discussion

45.	(x-400) \sqrt{3}=x+400
Answer» Thank you

Discussion

46.	011. Find the area of the sector of a circle of radius 5cm, if the corresponding arc length is3.5cm(8.75 cm)
Answer»

Discussion

47.	7. In Δ PQR, if LP-LQ = 42° and <Q-ZR21°. Find <P,LQ and < R.
Answer»

Discussion

48.	19. Find the area of the minor segment of a circle of radius 42cm, if length of the correspondingarc is 44cm.
Answer» 1 2

48.

19. Find the area of the minor segment of a circle of radius 42cm, if length of the correspondingarc is 44cm.

Answer»

1

2

Discussion

49.	9. The diagram represents the area swept bythe wiper of a car. With the dimensions givenin the figure, calculate the shaded area sweptby the wiper.(a) 102.67 cm2b) 205.34 cm2(c) 51.33 cm2(d) Cannot be determined
Answer» tysm

Discussion

50.	343. Find five rational numbers betweenand55
Answer»

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

EXERCISE 15.1a anoken match, a hatswoman hits a boundary b times out oi 30 hails siugleys Fuau probabiliny thai she did not bi a boundary

56. The value of 248 + 152 + V144, is(a) 17(b) 16(c) 15(d) 14

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ocos y - sin x sin y3cos +y)Consider the uncicile withthe angle POP Then (x+3)centre at the origin. Let.x be the an+1) is the angle POP.. Also let (-y) be the:Therefore, P. P P, and P, wР.leos cr +y, sin (x +3% P,Icos (-у), sin (-У)] and P. (1. 0)(Fire:P. P, and P, will have the coordinates P

20. Prove that the line joining the mid-point of a chord to the centre of thecircle passes through the mid-point of the corresponding minorarcthe given figure AR and CD are tur un3

H. The standard equation of an ellipse, the lengthof whosw major and minor axes are 10 and8respectively is

1. The strange thing about the man who arrived at the Coach and Horses inn was....

Findthe equation of an ellipse whose axes lie along coordinateaxes and which passes through (4,3) and (-1,4).

C0-ordlnate axeSFind the equation of the plane which is parallelto the plane x+5y-4z +5 0 and the sum ofintercepts on the axes is 15 unitss.ind tx+116. Flane whose intercepts10r+2y

5. Solve the following:1) Give two examples of parallel lines you can see in your environment.

tain rosses a Lelearapth postandl au11ん.cyLosees a64 msecomo)820 keam

Thevalueof(-10)+92+84+(-15) is(A) 150(B) 152(C) 161(D)

U11Q.1 Subtract (3a² bc) from (- 13a2bc + 5)

uvu anu &gt; wviues leaving ICC J0Jcuci cu(3) A boy saves 4.65 daily. Find the least number of days in which he will be able to save an exact number ofrupees.

प्रतियोगिता5/नीचे दी गई आकृतियों में प्रश्नवाचक चिह्न (?) के स्थान पर कौन-सीसंख्या आएगी?(144)(A)152(C)176(B) 162(D)104

(ଚତୁ ।I)|_5.ପାର୍ବସ୍ଥ ଚିତ୍ର 152 ରେ AB || CD ଏବଂ AD || BC । ଚିତ୍ରରୁx,y, ର ମାନ ସ୍ଥିର କର ।(ଚିତ୍ତି ।.52)C[29]

prove that the right bisector of a chord of a circle bisects the correspondingminor arc of the circle

5. The length of major and minor axes of theellipse 3x2 +2y2- 18 are

ve that the right bisector of a chord of a circle bisects the correspondingminor arc of the circle.

Tlthoninteenthterm of thethe value(s) of k for which the pair of linear equationehs sy and shy haveAP.infinitely many solutions

Nidhi saves Rs. 2 on first day of the month, Rs, 4 on second day, Rs. 6 on third day and so on.Read the above passage and answer the following questions:(0 What will be her saving in the month of February?(ii) What value is depicted by Nidhi?

|9.Meeta saves?400 from her salary. Ifthis is 10%of her salary. What is her salary?

ho did liol vote. CuMeeta saves? 400 from her salary. If this is 10% of her salary. What is her salary?It lyon 25% of them. Howon

I UUGILFind any three amazing pattern of numbersFor Example (1)2 = 1(11)2 = 121(111)2 = 13234 12321(1111)2 = 1234321

a) 150 cm2b) 152 cm2c) 154 cm2d) 156 cm2

Find the curved surface area of a cone of radius 7 cm and height 24 cm.a, 440 cm2 b, 550 cm2c. 330 cm2d. 110 cm2

A piece of wire is cut into two parts in the ratio 2:3. If the length of the longer piece is 81 cm.find the length of the shorter piece.

3 The outer and inner diameters of a circular ring are34 cm and 32 crn, respectively. Then, find the area ofCBSE 2011ring.

Find the area oi the minor segment of a circle of radius 42cm. if length of the correspondinare is 4icnm.

Salma borrowed from Mahila Samiti a sum of ? 1875 to purchase a sewing machine.ifthe rate of interest is 4% per annum, what is the compound interest that she has to payafter 2 years?

Find five rational numbers betweenand

Nidhi asked Meeta to think of a number. Then she asked to double it to and add 8 to it. If the result was 36. what number did Meeta think

20. Find the area of the minor segment of a circlc of radius 42cm, if length of the corresponding3arc is 44cm.

Find the area of the minor segment of a cdircle of radius 42em, if length of the corresponding arc is 443crn.

The perimeter of a parallelogram is 60 cmthe ratio of its adjacent sides is 3: 2. If thealtitude corresponding to the larger side of theparallelogram is 5cm. Find the area of the parallelogramand the altitude corresponding to the smaller side.

Find the area of the minor segment of a circle of radius 42cm, if length of the correspondingarc is 44cm.20.3

19. Findthe area of the minor segment of a circle of radius 42cm, if length of the correspondingarc is 44cm.

Find fiverational numbers between 5and5

Find the area of the minor segment of a circle of radius 42cm, if length of the correspondingarc is 44cm

X. X,....X, are n observations such that3x = 400 andandx = 80 then the least MBi=1i=1value of n isIT AMC

65400รท x 400100

Which angles are corresponding angles?POL and 2KLOLPOL and ZMLOPOL and 2M

Which angles are corresponding anglesFGI and 4CDGFGI and L.HGDFGI and EDGZFGI and ZCDB

pairs of corresponding angles

(x-400) \sqrt{3}=x+400

011. Find the area of the sector of a circle of radius 5cm, if the corresponding arc length is3.5cm(8.75 cm)

7. In Δ PQR, if LP-LQ = 42° and &lt;Q-ZR21°. Find &lt;P,LQ and &lt; R.

19. Find the area of the minor segment of a circle of radius 42cm, if length of the correspondingarc is 44cm.

9. The diagram represents the area swept bythe wiper of a car. With the dimensions givenin the figure, calculate the shaded area sweptby the wiper.(a) 102.67 cm2b) 205.34 cm2(c) 51.33 cm2(d) Cannot be determined

343. Find five rational numbers betweenand55

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uvu anu > wviues leaving ICC J0Jcuci cu(3) A boy saves 4.65 daily. Find the least number of days in which he will be able to save an exact number ofrupees.

7. In Δ PQR, if LP-LQ = 42° and <Q-ZR21°. Find <P,LQ and < R.