332354 + Interview Questions in Secondary School in Math

1.	sudhir bought an almirah for ₹ 13600 and spent ₹ 400 on its transportation. he sold it for ₹ 16800. find his gain percent.
Answer» GIVEN :- C.P of almirah = Rs. 13600 S.P of almirah = Rs. 16800 overhead EXPENSES = Rs. 400 TO FIND :- gain percent (P%). SOLUTION :- ➬ Actual C.P = C.P + overhead expenses ➬ Rs. 13600 + Rs. 400 ➬ Rs. 14000. Hence the actual C.P of almirah is Rs. 14000 ➬ PROFIT = S.P - Actual C.P ➬ Rs. 16800 - Rs. 14000 ➬ Rs. 2800 Hence profit of Sudhir is Rs. 2800. ☯ Profit % = [(profit / Actual C.P) × 100]% ➬ [(2800/14000) × 100]% ➬ [(28/14) × 10]% ➬ 20% Hence Profit % = 20%.

1.

sudhir bought an almirah for ₹ 13600 and spent ₹ 400 on its transportation. he sold it for ₹ 16800. find his gain percent.

Answer»

GIVEN :-

C.P of almirah = Rs. 13600
S.P of almirah = Rs. 16800
overhead EXPENSES = Rs. 400

TO FIND :-

gain percent (P%).

SOLUTION :-

➬ Actual C.P = C.P + overhead expenses

➬ Rs. 13600 + Rs. 400

➬ Rs. 14000.

Hence the actual C.P of almirah is Rs. 14000

➬ PROFIT = S.P - Actual C.P

➬ Rs. 16800 - Rs. 14000

➬ Rs. 2800

Hence profit of Sudhir is Rs. 2800.

☯ Profit % = [(profit / Actual C.P) × 100]%

➬ [(2800/14000) × 100]%

➬ [(28/14) × 10]%

➬ 20%

Hence Profit % = 20%.

Discussion

2.	Lf X + 1/x =5, then x2+ 1/x2=
Answer» Step-by-step explanation: ❤ hellp *good* *morning* *your* *answer* *mate* ❤... *GIVEN X + 1 /x ) = 5* *Given x + 1 /x ) = 5We need to find X2+ 1 / x2* *Given x + 1 /x ) = 5We need to find X2+ 1 / x2( x + 1 / x )2 = 25* *Given x + 1 /x ) = 5We need to find X2+ 1 / x2( x + 1 / x )2 = 25= x2 + 1 / x2 + 2 (x)(1)(1/x) =25* *Given x + 1 /x ) = 5We need to find X2+ 1 / x2( x + 1 / x )2 = 25= x2 + 1 / x2 + 2 (x)(1)(1/x) =25= x2 + 1/x2 + 2 = 25* *Given x + 1 /x ) = 5We need to find X2+ 1 / x2( x + 1 / x )2 = 25= x2 + 1 / x2 + 2 (x)(1)(1/x) =25= x2 + 1/x2 + 2 = 25= X2 + 1 / x2 = 25 – 2* *Given x + 1 /x ) = 5We need to find X2+ 1 / x2( x + 1 / x )2 = 25= x2 + 1 / x2 + 2 (x)(1)(1/x) =25= x2 + 1/x2 + 2 = 25= X2 + 1 / x2 = 25 – 2= X2+ 1 / x2=23* *Given x + 1 /x ) = 5We need to find X2+ 1 / x2( x + 1 / x )2 = 25= x2 + 1 / x2 + 2 (x)(1)(1/x) =25= x2 + 1/x2 + 2 = 25= X2 + 1 / x2 = 25 – 2= X2+ 1 / x2=23Hence X2+ 1 / x2= 23*

2.

Lf X + 1/x =5, then x2+ 1/x2=

Answer»

Step-by-step explanation:

❤ hellp good morning your answer mate ❤...

GIVEN X + 1 /x ) = 5

Given x + 1 /x ) = 5We need to find X2+ 1 / x2

Given x + 1 /x ) = 5We need to find X2+ 1 / x2( x + 1 / x )2 = 25

Given x + 1 /x ) = 5We need to find X2+ 1 / x2( x + 1 / x )2 = 25= x2 + 1 / x2 + 2 (x)(1)(1/x) =25

Given x + 1 /x ) = 5We need to find X2+ 1 / x2( x + 1 / x )2 = 25= x2 + 1 / x2 + 2 (x)(1)(1/x) =25= x2 + 1/x2 + 2 = 25

Given x + 1 /x ) = 5We need to find X2+ 1 / x2( x + 1 / x )2 = 25= x2 + 1 / x2 + 2 (x)(1)(1/x) =25= x2 + 1/x2 + 2 = 25= X2 + 1 / x2 = 25 – 2

Given x + 1 /x ) = 5We need to find X2+ 1 / x2( x + 1 / x )2 = 25= x2 + 1 / x2 + 2 (x)(1)(1/x) =25= x2 + 1/x2 + 2 = 25= X2 + 1 / x2 = 25 – 2= X2+ 1 / x2=23

Given x + 1 /x ) = 5We need to find X2+ 1 / x2( x + 1 / x )2 = 25= x2 + 1 / x2 + 2 (x)(1)(1/x) =25= x2 + 1/x2 + 2 = 25= X2 + 1 / x2 = 25 – 2= X2+ 1 / x2=23Hence X2+ 1 / x2= 23

Discussion

3.	If x= p is a root of x2 +bx+c =0,then:a) p2 + p =0b)p2 = 0c) p2 + bp +c+0d) p2 +c=0
Answer» Answer: 00000000000000000000000000000

3.

If x= p is a root of x2 +bx+c =0,then:a) p2 + p =0b)p2 = 0c) p2 + bp +c+0d) p2 +c=0

Answer»

Answer:

00000000000000000000000000000

Discussion

4.	On a number line ,as we move left from one number to the other what happened to the number
Answer» the NUMBER DECREASES if we MOVE to LEFT

Discussion

5.	The price of a chair is rs 800 and the rate of VAT is 12 percent find the price of chair after including VAT
Answer» Answer: 896 Step-by-step EXPLANATION: final PRICE of the CHAIR = 800 + 12% of 800 = 800 + 96 = 896

5.

The price of a chair is rs 800 and the rate of VAT is 12 percent find the price of chair after including VAT

Answer»

Answer:

896

Step-by-step EXPLANATION:

final PRICE of the CHAIR = 800 + 12% of 800

= 800 + 96

= 896

Discussion

6.	Write this answer for the notebook
Answer» Step-by-step explanation: 1) 76/2=38 2)66/5=13.2 3) 92/8=11.5 4)!67/5=13.4 5) 75/3=25 6) 99/7=14.1 7) 89/6=16.5 8) 78/2=39 9) 80/5=16 OK FRIEND this is URS ANSWER

6.

Write this answer for the notebook

Answer»

Step-by-step explanation:

1) 76/2=38

2)66/5=13.2

3) 92/8=11.5

4)!67/5=13.4

5) 75/3=25

6) 99/7=14.1

7) 89/6=16.5

8) 78/2=39

9) 80/5=16 OK FRIEND this is URS ANSWER

Discussion

7.	OBJECTIVE: Students will be able to plot the points and their mirror images in the cartesian plane. MATERIAL REQUIRED: Graph paper, Geometry box. PROCEDURE: 1. Plot the following points on the cartesian plane : Points A(3, 0), B(-2.9, 1), C(2.3, 2), D(-1, 0.9), E(0, -3), F(1.5, -2.6), G(2, 2.3) and H(-2.7, -1.3). 2. Plot the mirror images of points A, B, C and D wrt y-axis. 3. Plot the mirror images of points E, F, G and H wrt x-axis. 4. Join all the points and their mirror images with free hand to obtain a closed curve.
Answer» ANSWER: what is this where is the question Step-by-step EXPLANATION: PLEASE MARK as BRAINLIST

7.

OBJECTIVE: Students will be able to plot the points and their mirror images in the cartesian plane. MATERIAL REQUIRED: Graph paper, Geometry box. PROCEDURE: 1. Plot the following points on the cartesian plane : Points A(3, 0), B(-2.9, 1), C(2.3, 2), D(-1, 0.9), E(0, -3), F(1.5, -2.6), G(2, 2.3) and H(-2.7, -1.3). 2. Plot the mirror images of points A, B, C and D wrt y-axis. 3. Plot the mirror images of points E, F, G and H wrt x-axis. 4. Join all the points and their mirror images with free hand to obtain a closed curve.

Answer»

ANSWER:

what is this where is the question

Step-by-step EXPLANATION:

PLEASE MARK as BRAINLIST

Discussion

8.	a coined is tossed 1000 times with the following frequencies . head=455 tail 545. complete the probability for each event
Answer» ANSWER: tossed=1000 no of you GOT TAILS =545 no of you got HEADS = 455 after adding =545+455 = 1000 so the probability is= 1000-1000 probability in each event is = 0

8.

a coined is tossed 1000 times with the following frequencies . head=455 tail 545. complete the probability for each event

Answer»

ANSWER:

tossed=1000

no of you GOT TAILS =545

no of you got HEADS = 455

after adding =545+455 = 1000

so the probability is= 1000-1000

probability in each event is = 0

Discussion

9.	)-8/5 + X = 2/5 तो X की कीमत ज्ञात करें।
Answer» ANSWER: ∴ X = 2 Step-by-step EXPLANATION: SOLUTION, or, -8/5 + x = 2/5 or, x = 2/5 + 8/5 or, x = (2+8)/5 or, x = 10/5 ∴ x = 2

9.

)-8/5 + X = 2/5 तो X की कीमत ज्ञात करें।

Answer»

ANSWER:

∴ X = 2

Step-by-step EXPLANATION:

SOLUTION,

or, -8/5 + x = 2/5

or, x = 2/5 + 8/5

or, x = (2+8)/5

or, x = 10/5

∴ x = 2

Discussion

10.	Permalise the desersnston &
Answer» ANSWER: HEY FRIEND your QUESTION is incomplete complete the question

10.

Permalise the desersnston &

Answer»

ANSWER:

HEY FRIEND your QUESTION is incomplete

complete the question

Discussion

11.	Number of tangent that can be draw to ta circle is
Answer» ANSWER: 2 is your answer........ ...

11.

Number of tangent that can be draw to ta circle is

Answer»

ANSWER:

2 is your answer........ ...

Discussion

12.	(2x+3)(3x-7)=0 Plz answer this question by factorization metho
Answer» Answer: YAAR I can't properly understand the QUESTION so I can't answer

12.

(2x+3)(3x-7)=0 Plz answer this question by factorization metho

Answer»

Answer:

YAAR I can't properly understand the QUESTION so I can't answer

Discussion

13.	On a circle points a b c are picked on the circumference of the circle. abc form a triangle, such that ab=10, ac=24, bc=26. What is the radius of the circle.Pls help
Answer» Answer: 13 Step-by-step explanation: Draw a circle and label three points on the circumference of circle. Next just check the NUMBERS with pythagoras theorem: $26 ^{2}$ = $24^{2}$ + $10^{2}$ LHS = 676 RHS = 576 + 100 = 676 Therefore if the TRIANGLE obey pythagoras theorem, then the angle opposite to the largest side should be right angled. As BC is the largest side angle(A) should be a right angle. Therefore for this to HAPPEN the side bc must be a DIAMETER of the circle [As diameter makes 180 angle and as per half angle rule the angle subtended at the circumference of a circle must be a right angled if it is subtended from the semicircle(diameter)]. Therefore bc is the diameter(d) of the circle. d=26 therefore radius(r)=26/2=13

13.

On a circle points a b c are picked on the circumference of the circle. abc form a triangle, such that ab=10, ac=24, bc=26. What is the radius of the circle.Pls help

Answer»

Answer:

13

Step-by-step explanation:

Draw a circle and label three points on the circumference of circle.

Next just check the NUMBERS with pythagoras theorem:

$26 ^{2}$ = $24^{2}$ + $10^{2}$

LHS = 676

RHS = 576 + 100 = 676

Therefore if the TRIANGLE obey pythagoras theorem, then the angle opposite to the largest side should be right angled. As BC is the largest side angle(A) should be a right angle. Therefore for this to HAPPEN the side bc must be a DIAMETER of the circle [As diameter makes 180 angle and as per half angle rule the angle subtended at the circumference of a circle must be a right angled if it is subtended from the semicircle(diameter)]. Therefore bc is the diameter(d) of the circle. d=26 therefore radius(r)=26/2=13

Discussion

14.	Equation of a line which passes through the point (
Answer» ANSWER: mx^2+c OK ok ok ok ok ok ok

14.

Equation of a line which passes through the point (

Answer»

ANSWER:

mx^2+c OK ok ok ok ok ok ok

Discussion

15.	A and B can do a piece of work in 40 days , B and C in 30 days and C and A in 24 days. How long will it take to do the work together? How much time will each of them will take to finish it alone
Answer» Answer: here given 40(a+b)=1.........(1) 30(b+c)=1.........(2) 30(c+a)=1..........(3) let T(a+b+c)=1 we wanna find value of t. LCM in equation 1,2,and 3 is 120. therefore, (1)×3=>120(a+b)=3............(4) (2)×4=>120(b+c)=4.............(5) (3)×4=>120(c+a)=4..............(6) adding equation 4,5 and 6 we get, 120(a+b+b+c+c+a)= 3+4+4 =>120 ×2 (a+b+c)= 11 => 240/11(a+b+c)= 1 => 21.81 (a+b+c) =1 the value of t is 21.81 or 22 days approximately. so if they WORK together it will take 22 day. try SECOND question as we have value of a+b+c. angelbty.

15.

A and B can do a piece of work in 40 days , B and C in 30 days and C and A in 24 days. How long will it take to do the work together? How much time will each of them will take to finish it alone

Answer»

Answer:

here given

40(a+b)=1.........(1)

30(b+c)=1.........(2)

30(c+a)=1..........(3)

let T(a+b+c)=1

we wanna find value of t.

LCM in equation 1,2,and 3 is 120.

therefore,

(1)×3=>120(a+b)=3............(4)

(2)×4=>120(b+c)=4.............(5)

(3)×4=>120(c+a)=4..............(6)

adding equation 4,5 and 6 we get,

120(a+b+b+c+c+a)= 3+4+4

=>120 ×2 (a+b+c)= 11

=> 240/11(a+b+c)= 1

=> 21.81 (a+b+c) =1

the value of t is 21.81 or 22 days approximately.

so if they WORK together it will take 22 day.

try SECOND question as we have value of a+b+c.

angelbty.

Discussion

16.	What must be subtracted from 4x2 to get 6x3-2x2+5x-1
Answer» Step-by-step EXPLANATION: LET the SUBTRACTED PART be A A/Q =4x^2--A=6x^3--2x^2+5x-1 =-A=6x^3-2x^2+5x-1-4x^2 =-A=6x^3-6x^2+5x-1 =A=-(6x^3-6x^2+5x-1) =A=-6x^3+6x^2+5x-1

16.

What must be subtracted from 4x2 to get 6x3-2x2+5x-1

Answer»

Step-by-step EXPLANATION:

LET the SUBTRACTED PART be A

A/Q

=4x^2--A=6x^3--2x^2+5x-1

=-A=6x^3-2x^2+5x-1-4x^2

=-A=6x^3-6x^2+5x-1

=A=-(6x^3-6x^2+5x-1)

=A=-6x^3+6x^2+5x-1

Discussion

17.	The arthemetic progerssion of 1,3,5,...625 by linear eqution method
Answer» y = x + 2 The equation can be rewritten as (y – x = 2) where, x = INITIAL term (say 1) 2 = DIFFERENCE y = next no. in series y = x + 2 y = 1 + 2 = 3 y = 3 + 2 = 5 and so on.

17.

The arthemetic progerssion of 1,3,5,...625 by linear eqution method

Answer»

y = x + 2

The equation can be rewritten as (y – x = 2)

where, x = INITIAL term (say 1)

2 = DIFFERENCE

y = next no. in series

y = x + 2

y = 1 + 2 = 3

y = 3 + 2 = 5

and so on.

Discussion

18.	Hoiiiiiiiiiiiiiiiiiiiiiiiiioljjjkm,
Answer» ANSWER: a⁸ hope it will HELP you MARK as BRAINLIST

18.

Hoiiiiiiiiiiiiiiiiiiiiiiiiioljjjkm,

Answer»

ANSWER:

a⁸

hope it will HELP you MARK as BRAINLIST

Discussion

19.	Find any two solutions of the equation x - y = 10 plzz ans fast no unnessassary answer
Answer» x-y=10 =20-10=10 2. x-y=10,=200-190= 10

19.

Find any two solutions of the equation x - y = 10 plzz ans fast no unnessassary answer

Answer»

x-y=10 =20-10=10

2. x-y=10,=200-190= 10

Discussion

20.	Convert binary into decimalA. 11001 B. 10010 C. 101011 D. 0100001 E. 100 *
Answer» Answer: 35 34 75 85 3 Step-by-step EXPLANATION: HOPE it HELPS you FRIEND

20.

Convert binary into decimalA. 11001 B. 10010 C. 101011 D. 0100001 E. 100 *

Answer»

Answer:

35

34

75

85

3

Step-by-step EXPLANATION:

HOPE it HELPS you FRIEND

Discussion

21.	Which of the following reciprocal 1 / 3 of 1 /6
Answer» ANSWER: $CUBE654321body {padding-left: 30%;padding-top: 5%;}.container {width: 200px;height: 200px;position: relative;-webkit-perspective: 1000px;-moz-perspective: 1000px;}#cube {width: 100%;height: 100%;position: absolute;-webkit-transform-style: preserve-3d;-webkit-animation: rotatecube 10s infinite;-moz-transform-style: preserve-3d;-moz-animation: rotatecube 10s infinite;}#cube div {width: 200px;height: 200px;display: block;position: absolute;border: none;line-height: 200px;text-align: center;font-size: 50px;font-weight: bold;}@-webkit-keyframes rotatecube {0% { -webkit-transform: rotateX(0deg) rotateY(360deg) rotateZ(90deg); }25% { -webkit-transform: rotateX(90deg) rotateY(270deg) rotateZ(180deg); }50% { -webkit-transform: rotateX(180deg) rotateY(180deg) rotateZ(0deg); }75% { -webkit-transform: rotateX(270deg) rotateY(90deg) rotateZ(360deg); }100% { -webkit-transform: rotateX(360deg) rotateY(0deg) rotateZ(270deg); }}@-moz-keyframes rotatecube {0% { -moz-transform: rotateX(0deg) rotateY(360deg) rotateZ(90deg); }25% { -moz-transform: rotateX(90deg) rotateY(270deg) rotateZ(180deg); }50% { -moz-transform: rotateX(180deg) rotateY(180deg) rotateZ(0deg); }75% { -moz-transform: rotateX(270deg) rotateY(90deg) rotateZ(360deg); }100% { -moz-transform: rotateX(360deg) rotateY(0deg) rotateZ(270deg); }}.front {background: rgba(255,0,0,.5);}.back {background: rgba(0,255,0,.5);}.right {background: rgba(0,0,255,.5);}.left {background: rgba(0,255,255,.5);}.top {background: rgba(255,0,255,.5);}.bottom {background: rgba(255,255,0,.5);}#cube .front {-webkit-transform: rotateY(0deg ) translateZ( 100px );-moz-transform: rotateY( 0deg ) translateZ( 100px );}#cube .back {-webkit-transform: rotateX( 180deg ) translateZ( 100px );-moz-transform: rotateX( 180deg ) translateZ( 100px );}#cube .right {-webkit-transform: rotateY( 90deg ) translateZ( 100px );-moz-transform: rotateY( 90deg ) translateZ( 100px );}#cube .left {-webkit-transform: rotateY( -90deg ) translateZ( 100px );-moz-transform: rotateY( -90deg ) translateZ( 100px );}#cube .top {-webkit-transform: rotateX( 90deg ) translateZ( 100px );-moz-transform: rotateX( 90deg ) translateZ( 100px );}#cube .bottom {-webkit-transform: rotateX( -90deg ) translateZ( 100px );-moz-transform: rotateX( -90deg ) translateZ( 100px );}$ Step-by-step EXPLANATION: This is your answer MATE

21.

Which of the following reciprocal 1 / 3 of 1 /6

Answer»

ANSWER:

$CUBE654321body {padding-left: 30%;padding-top: 5%;}.container {width: 200px;height: 200px;position: relative;-webkit-perspective: 1000px;-moz-perspective: 1000px;}#cube {width: 100%;height: 100%;position: absolute;-webkit-transform-style: preserve-3d;-webkit-animation: rotatecube 10s infinite;-moz-transform-style: preserve-3d;-moz-animation: rotatecube 10s infinite;}#cube div {width: 200px;height: 200px;display: block;position: absolute;border: none;line-height: 200px;text-align: center;font-size: 50px;font-weight: bold;}@-webkit-keyframes rotatecube {0% { -webkit-transform: rotateX(0deg) rotateY(360deg) rotateZ(90deg); }25% { -webkit-transform: rotateX(90deg) rotateY(270deg) rotateZ(180deg); }50% { -webkit-transform: rotateX(180deg) rotateY(180deg) rotateZ(0deg); }75% { -webkit-transform: rotateX(270deg) rotateY(90deg) rotateZ(360deg); }100% { -webkit-transform: rotateX(360deg) rotateY(0deg) rotateZ(270deg); }}@-moz-keyframes rotatecube {0% { -moz-transform: rotateX(0deg) rotateY(360deg) rotateZ(90deg); }25% { -moz-transform: rotateX(90deg) rotateY(270deg) rotateZ(180deg); }50% { -moz-transform: rotateX(180deg) rotateY(180deg) rotateZ(0deg); }75% { -moz-transform: rotateX(270deg) rotateY(90deg) rotateZ(360deg); }100% { -moz-transform: rotateX(360deg) rotateY(0deg) rotateZ(270deg); }}.front {background: rgba(255,0,0,.5);}.back {background: rgba(0,255,0,.5);}.right {background: rgba(0,0,255,.5);}.left {background: rgba(0,255,255,.5);}.top {background: rgba(255,0,255,.5);}.bottom {background: rgba(255,255,0,.5);}#cube .front {-webkit-transform: rotateY(0deg ) translateZ( 100px );-moz-transform: rotateY( 0deg ) translateZ( 100px );}#cube .back {-webkit-transform: rotateX( 180deg ) translateZ( 100px );-moz-transform: rotateX( 180deg ) translateZ( 100px );}#cube .right {-webkit-transform: rotateY( 90deg ) translateZ( 100px );-moz-transform: rotateY( 90deg ) translateZ( 100px );}#cube .left {-webkit-transform: rotateY( -90deg ) translateZ( 100px );-moz-transform: rotateY( -90deg ) translateZ( 100px );}#cube .top {-webkit-transform: rotateX( 90deg ) translateZ( 100px );-moz-transform: rotateX( 90deg ) translateZ( 100px );}#cube .bottom {-webkit-transform: rotateX( -90deg ) translateZ( 100px );-moz-transform: rotateX( -90deg ) translateZ( 100px );}$

Step-by-step EXPLANATION:

This is your answer MATE

Discussion

22.	Find value of k if (2,3) is the solution of 2x - ky = 15 *plzz ans fast no unnessassary answer with full explanation
Answer» ANSWER: U can to this QUESTION to HELP of this PICTURE

22.

Find value of k if (2,3) is the solution of 2x - ky = 15 *plzz ans fast no unnessassary answer with full explanation

Answer»

ANSWER:

U can to this QUESTION to HELP of this PICTURE

Discussion

23.	1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+11+1+
Answer» ANSWER: your answer is 27 Please MARK me as BRAINLIEST

23.

1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+11+1+

Answer»

ANSWER:

your answer is 27

Please MARK me as BRAINLIEST

Discussion

24.	What is the quadratic polynomial whose zeroes are 5 and -3
Answer» ANSWER: $x^{2}$ -2x-15=0

24.

What is the quadratic polynomial whose zeroes are 5 and -3

Answer»

ANSWER:

$x^{2}$ -2x-15=0

Discussion

25.	Hoooooooooooooooooooo
Answer» ANSWER: Step-by-step EXPLANATION: = -2³ = - 8 [ - × - = +][+ × - = -}

25.

Hoooooooooooooooooooo

Answer»

ANSWER:

Step-by-step EXPLANATION:

= -2³

= - 8

[ - × - = +][+ × - = -}

Discussion

26.	B cThe Sets A & B has a and 3 elementsThe number of Relation from A to B is
Answer» ANSWER: N(A) = a and n(B) = 3 so, n(A → B) = n(A) × n(B) = a × 3 = 3a so, NUMBER of relations = 3a

26.

B cThe Sets A & B has a and 3 elementsThe number of Relation from A to B is

Answer»

ANSWER:

N(A) = a

and n(B) = 3

so,

n(A → B) = n(A) × n(B)

= a × 3 = 3a

so,

NUMBER of relations = 3a

Discussion

27.	Rationalise the denominator of 3 upon √2-√5
Answer» $\green{\bold{\underline{ ☆ UPSC-ASPIRANT ☆} }}$ $\red{\bold{\underline{\underline{QUESTION:-}}}}$ RATIONALISE the DENOMINATOR of 3 upon √2-√5 $\huge\bigstar\huge\tt\underline\red{ᴀɴsᴡᴇʀ }\bigstar$ $➪ \frac{3}{ \sqrt{2} - \sqrt{5} }$ $➪ \frac{3}{ \sqrt{2} - \sqrt{5} } \times \frac{ \sqrt{2} + \sqrt{5} }{ \sqrt{2} + \sqrt{5} }$ $➪ \frac{3( \sqrt{2} + \sqrt{5} ) }{ ({ \sqrt{2}) }^{2} - {( \sqrt{5}) }^{2} } = \frac{3( \sqrt{2} + \sqrt{5} )}{2 - 5}$ $➪ \frac{༽3( \sqrt{2} + \sqrt{5} ) }{ - ༽3} = - ( \sqrt{2 } - \sqrt{5} )$ ---->>>>>>Here is your answer<<<<-------- HOPE IT HELPS YOU.. _____________________ THANKYOU:)

27.

Rationalise the denominator of 3 upon √2-√5

Answer»

$\green{\bold{\underline{ ☆ UPSC-ASPIRANT ☆} }}$

$\red{\bold{\underline{\underline{QUESTION:-}}}}$

RATIONALISE the DENOMINATOR of 3 upon √2-√5

$\huge\bigstar\huge\tt\underline\red{ᴀɴsᴡᴇʀ }\bigstar$

$➪ \frac{3}{ \sqrt{2} - \sqrt{5} }$

$➪ \frac{3}{ \sqrt{2} - \sqrt{5} } \times \frac{ \sqrt{2} + \sqrt{5} }{ \sqrt{2} + \sqrt{5} }$

$➪ \frac{3( \sqrt{2} + \sqrt{5} ) }{ ({ \sqrt{2}) }^{2} - {( \sqrt{5}) }^{2} } = \frac{3( \sqrt{2} + \sqrt{5} )}{2 - 5}$

$➪ \frac{༽3( \sqrt{2} + \sqrt{5} ) }{ - ༽3} = - ( \sqrt{2 } - \sqrt{5} )$

---->>>>>>Here is your answer<<<<--------

HOPE IT HELPS YOU..

_____________________

THANKYOU:)

Discussion

28.	Qn1.) State true and false for the following statements. 1.) Triangle is a polygon having three angles. 2.) Equilateral triangle has none of the sides equal. 3.) Right angled triangle has two acute angles in it. 4.) Scalene triangle is the triangle with all equal sides. 5.) Sum of angles inside the triangle is equal to 180°.
Answer» Answer: 1. TRUE 2. False 3. true 4. false 5. true

28.

Qn1.) State true and false for the following statements. 1.) Triangle is a polygon having three angles. 2.) Equilateral triangle has none of the sides equal. 3.) Right angled triangle has two acute angles in it. 4.) Scalene triangle is the triangle with all equal sides. 5.) Sum of angles inside the triangle is equal to 180°.

Answer»

Answer:

1. TRUE

2. False

3. true

4. false

5. true

Discussion

29.	Decrypt the recelred coded message(45 -28 23) (46(46 -18 3) (5 -5 5)the encryptton matrixwith
Answer» ANSWER: Don rptujt pe6fpsu his SHEAF FIT

29.

Decrypt the recelred coded message(45 -28 23) (46(46 -18 3) (5 -5 5)the encryptton matrixwith

Answer»

ANSWER:

Don rptujt pe6fpsu his SHEAF FIT

Discussion

30.	an article after allowing a discount of 20% on its marked price was sold at a gain of 20% had it had been sold after allowing 25% discount there would have been gain of 125 rupees find the cost price of the article
Answer» Step-by-step EXPLANATION: ऐसा रीस्टोर प्वाइंट टू टू टू एंड

30.

an article after allowing a discount of 20% on its marked price was sold at a gain of 20% had it had been sold after allowing 25% discount there would have been gain of 125 rupees find the cost price of the article

Answer»

Step-by-step EXPLANATION:

ऐसा रीस्टोर प्वाइंट टू टू टू एंड

Discussion

31.	Find the values o f x and y if[3x+y,-y]
Answer» Answer: good for your a few BIT and more about each of day to be in this a few months WEEKS to the other than that the other day to of a LOT to i it to the be in the other use day to of a the way NEW year one more is a lot and to be the new one year to of this the new York CITY and the way other day than a that the is not the other way

31.

Find the values o f x and y if[3x+y,-y]

Answer»

Answer:

good for your a few BIT and more about each of day to be in this a few months WEEKS to the other than that the other day to of a LOT to i it to the be in the other use day to of a the way NEW year one more is a lot and to be the new one year to of this the new York CITY and the way other day than a that the is not the other way

Discussion

32.	Expand the following (-2a-b+3c)^2
Answer» $\huge\bold\purple{QUESTION}$ Expand the FOLLOWING (-2A-B+3c)² $\huge\bold\red{ANSWER}$ LET x=(-2a) y=(-b) z=(3c) WE NEED TO FIND OUT (x+y+z)² =x²+y²+z²+2(xy+yz+zx) =(-2a)²+(-b)²+(3c)²+2[{(-2a)×(-b)}+{(-b)×(3c)}+{(3c)×(-2a)}] =4a²+b²+9c²+2(2ab-3bc-6ac) =4a²+b²+9c²+4ab-6bc-12ac $\bold\blue{ADDITIONAL\: \: INFORMATION}$ a²+b²+2ab=(a+b)² a²+b²-2ab=(a-b)² a²-b²=(a+b)(a-b) a³+b³=(a+b)(a²+b²-ab) a³-b³=(a-b)(a²+b²+ab) a³+b³+c³-3abc=(a+b+c)(a²+b²+c²-ab-bc-ca) a³+b³+3ab(a+b)=(a+b)³ a³-b³-3ab(a-b)=(a-b)³

32.

Expand the following (-2a-b+3c)^2

Answer»

$\huge\bold\purple{QUESTION}$

Expand the FOLLOWING (-2A-B+3c)²

$\huge\bold\red{ANSWER}$

LET x=(-2a)

y=(-b)

z=(3c)

WE NEED TO FIND OUT (x+y+z)²

=x²+y²+z²+2(xy+yz+zx)

=(-2a)²+(-b)²+(3c)²+2[{(-2a)×(-b)}+{(-b)×(3c)}+{(3c)×(-2a)}]

=4a²+b²+9c²+2(2ab-3bc-6ac)

=4a²+b²+9c²+4ab-6bc-12ac

$\bold\blue{ADDITIONAL\: \: INFORMATION}$

a²+b²+2ab=(a+b)²

a²+b²-2ab=(a-b)²

a²-b²=(a+b)(a-b)

a³+b³=(a+b)(a²+b²-ab)

a³-b³=(a-b)(a²+b²+ab)

a³+b³+c³-3abc=(a+b+c)(a²+b²+c²-ab-bc-ca)

a³+b³+3ab(a+b)=(a+b)³

a³-b³-3ab(a-b)=(a-b)³

Discussion

33.	Solve – 73 and sind thesolution set
Answer» ANSWER: hznssdd the COUNTRY and my PEOPLE I PLACE errttrerttyy the country was SCHEDULED

33.

Solve – 73 and sind thesolution set

Answer»

ANSWER:

hznssdd the COUNTRY and my PEOPLE I PLACE errttrerttyy the country was SCHEDULED

Discussion

34.	In quadrilateral PORS, find a resultant vectori) OR + RS=05PO4OR - [PPiii) PS+SR+RO = P9 iv) PR 4 ROOSv) QR-SR-PSvi) OP-RP+RS$ =psCom i
Answer» Answer: 1 Step-by-step explanation: i only THOUGHT this answer I HOPE this answer is right

34.

In quadrilateral PORS, find a resultant vectori) OR + RS=05PO4OR - [PPiii) PS+SR+RO = P9 iv) PR 4 ROOSv) QR-SR-PSvi) OP-RP+RS$ =psCom i

Answer»

Answer:

1

Step-by-step explanation:

i only THOUGHT this answer

I HOPE this answer is right

Discussion

35.	ताट ५ रुपयला ताब्या ३ रूपयला वाट्या ५० पैशाला संगल्या वस्तू मिलून १०० अछि त्याचि किमत पण १०० आलि पाहिज़े तर सानगा उत्तर
Answer» ANSWER: lhv Step-by-step EXPLANATION: क्षठँबलणबणबतवबतवडव

35.

ताट ५ रुपयला ताब्या ३ रूपयला वाट्या ५० पैशाला संगल्या वस्तू मिलून १०० अछि त्याचि किमत पण १०० आलि पाहिज़े तर सानगा उत्तर

Answer»

ANSWER:

lhv

Step-by-step EXPLANATION:

क्षठँबलणबणबतवबतवडव

Discussion

36.	Lcm of 24, 40 ,80 ,120
Answer» Step-by-step EXPLANATION: ....have you GOT your ANSWER MATE

36.

Lcm of 24, 40 ,80 ,120

Answer»

Step-by-step EXPLANATION:

....have you GOT your ANSWER MATE

Discussion

37.	SoO TheVector thatthat mustmust beadded to theVector i-3i+2K and zitoj - 7kthatrusultant vecter is unitthey-axis is ....vecter ateng
Answer» ANSWER: So SORRY YAAR I can't answer OK.

37.

SoO TheVector thatthat mustmust beadded to theVector i-3i+2K and zitoj - 7kthatrusultant vecter is unitthey-axis is ....vecter ateng

Answer»

ANSWER:

So SORRY YAAR I can't answer OK.

Discussion

38.	2400The sum of two number is6% of one number is10% of the other. What is thedifference the number
Answer» ANSWER: i think it would be the answer -6% Step-by-step explanation: because u asked for the SUM of 2 NUMBERS so that would be the answer

38.

2400The sum of two number is6% of one number is10% of the other. What is thedifference the number

Answer»

ANSWER:

i think it would be the answer -6%

Step-by-step explanation:

because u asked for the SUM of 2 NUMBERS so that would be the answer

Discussion

39.	Can you help me please??
Answer» i have an EXAM of the same SUBJECT not now.

Discussion

40.	In abc right angle at B, bc=5cm and ac -ab =1cm.evaluate 1+sin c upon cos c
Answer» Answer: 4dollars and other factors INCLUDE a 6AM AMOUNT and a number that can VARY depending UPON

40.

In abc right angle at B, bc=5cm and ac -ab =1cm.evaluate 1+sin c upon cos c

Answer»

Answer:

4dollars and other factors INCLUDE a 6AM AMOUNT and a number that can VARY depending UPON

Discussion

41.	Volume of a right circular cone is 4928 cm³ and diameter of base is 14 cm, find its height?
Answer» solution; RADIUS of a circular CONE (r)=d/2 =14/2 let , the HEIGHT of the cone =h cm volume of cone (v) =4928 again, v=1/3πr²h 4928=1/322/77²h 4928=22/37h 49283/154=h 14784/154=h h=96 height of cone =96cm

41.

Volume of a right circular cone is 4928 cm³ and diameter of base is 14 cm, find its height?

Answer»

solution;

RADIUS of a circular CONE (r)=d/2

=14/2

let , the HEIGHT of the cone =h cm

volume of cone (v) =4928

again,

v=1/3πr²h

4928=1/3*22/7*7²*h

4928=22/3*7*h

4928*3/154=h

14784/154=h

h=96

height of cone =96cm

Discussion

42.	16) Find ( 502-492 ) + (482-472 )+(462-452 ) ++(2²-1²).
Answer» ANSWER: = 33 Step-by-step EXPLANATION: = ( 502-492 ) + (482-472 )+(462-452 ) + (2²-1²). = 10 + 10 + 10 + (4-1) = 30 + 3 = 33

42.

16) Find ( 502-492 ) + (482-472 )+(462-452 ) ++(2²-1²).

Answer»

ANSWER:

= 33

Step-by-step EXPLANATION:

= ( 502-492 ) + (482-472 )+(462-452 ) + (2²-1²).

= 10 + 10 + 10 + (4-1)

= 30 + 3

= 33

Discussion

43.	For quadratic polynomial x²+ 3x + 2 , the sum of zeros will be____
Answer» Answer: *hey* *buddy* *here* *is your answer mate* Step-by-step EXPLANATION: x^2+3x+2 x^2+(2+1)x+2 x^2+2+x+2 x(x+2)+1(x+2) (x+1) (x+2) (x+1)=0 x=-1 (x+2)=0 x=-2 *PLEASE* *mark* *as BRAINLIEST* ❤

43.

For quadratic polynomial x²+ 3x + 2 , the sum of zeros will be____

Answer»

Answer:

hey buddy here is your answer mate

Step-by-step EXPLANATION:

x^2+3x+2

x^2+(2+1)x+2

x^2+2+x+2

x(x+2)+1(x+2)

(x+1) (x+2)

(x+1)=0

x=-1

(x+2)=0

x=-2

PLEASE mark as BRAINLIEST ❤

Discussion

44.	LCM OF 24, 40, 80 ,120 BATADO AISA BOHT QUESTION AANE WALE HAI
Answer» Answer: HOPE it helps you.PLS mark me as brainiest and follow me pls I NEED support,......

44.

LCM OF 24, 40, 80 ,120 BATADO AISA BOHT QUESTION AANE WALE HAI

Answer»

Answer:

HOPE it helps you.PLS mark me as brainiest and follow me pls I NEED support,......

Discussion

45.	Show that minute hand of a clock gains5odegree 30″ on the hour hand in one minute.please give my answer
Answer» ANSWER: Hence in 1 MINUTE, the minute hand gains =6-0.5= 5.5° or 11/2 DEGREES over the HOUR hand. Step-by-step explanation: pls MARK me brainliest

45.

Show that minute hand of a clock gains5odegree 30″ on the hour hand in one minute.please give my answer

Answer»

ANSWER:

Hence in 1 MINUTE, the minute hand gains =6-0.5= 5.5° or 11/2 DEGREES over the HOUR hand.

Step-by-step explanation:

pls MARK me brainliest

Discussion

46.	P के किस मान के लिए px + 2y= 5 और 3x + y = 1 का हल आद्वतायहोगा।
Answer» this is your ANSWER... have a GOOD DAY.

46.

P के किस मान के लिए px + 2y= 5 और 3x + y = 1 का हल आद्वतायहोगा।

Answer»

this is your ANSWER... have a GOOD DAY.

Discussion

47.	The HCF of 128 and 68 is expressible inthe form 128 m - 15 X 68. Find the value ofm. Also find the LCM of 128 and 68 usingprime factorisation method.
Answer» U can do this QUESTION to HELP of this PICTURE

47.

The HCF of 128 and 68 is expressible inthe form 128 m - 15 X 68. Find the value ofm. Also find the LCM of 128 and 68 usingprime factorisation method.

Answer»

U can do this QUESTION to HELP of this PICTURE

Discussion

48.	If pllm, qilm thenOP\|\| qO Pis perpendicular to qO Both the aboveO None of these
Answer» ANSWER: p\|\|q is answer hoping it MAY HELP

48.

If pllm, qilm thenOP|| qO Pis perpendicular to qO Both the aboveO None of these

Answer»

ANSWER:

p||q is answer

hoping it MAY HELP

Discussion

49.	Rationalise 3÷√5 and ,1÷√8
Answer» Step-by-step EXPLANATION: its my PLEASURE to HELP you. please MARK me as a BRAINLIEST.

49.

Rationalise 3÷√5 and ,1÷√8

Answer»

Step-by-step EXPLANATION:

its my PLEASURE to HELP you.

please MARK me as a BRAINLIEST.

Discussion

50.	What is 2848+8679 ?
Answer» 0

Discussion

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