332354 + Interview Questions in Secondary School in Math

1.	How many numbers are only divisible by 3 in 1 to 200
Answer» Answer: FIRST ,between 1 - 200 let we TAKE the no. Divisible by 3 = x And no. Divisible by 7 = y And no. Divisible by both 3 & 7 = z Between 1 to 200 multiples of 3 are 3,6 ,9...............198 So using ARITHMETIC progression LAST tern relation. L = a + (n-1)d..................................(1) L = 198 a=3 d=3 We get n = 66 =x Similarly for 7 we get , y= 28. Now the we will find the no.s which are divisible by both 3 and 7 for that we determine the no. divisible by 21 = 3×7 21,42,63..........189 Using relation 1 we get z = 9 Last step is No. Divisible by 3 or 7 b/w 1 - 200 = (no.s divisible by 3 ) + (no.s divisible by 7) - (no.s divisible by both) = X+Y-Z = 66+28-9 = 85 Numbers DIVINE by both 3 or 7 between 1 to 200 are 85.

1.

How many numbers are only divisible by 3 in 1 to 200

Answer»

Answer:

FIRST ,between 1 - 200

let we TAKE the no. Divisible by 3 = x

And no. Divisible by 7 = y

And no. Divisible by both 3 & 7 = z

Between 1 to 200 multiples of 3 are

3,6 ,9...............198

So using ARITHMETIC progression LAST tern relation.

L = a + (n-1)d..................................(1)

L = 198

a=3

d=3

We get n = 66 =x

Similarly for 7 we get , y= 28.

Now the we will find the no.s which are divisible by both 3 and 7 for that we determine the no. divisible by 21 = 3×7

21,42,63..........189

Using relation 1 we get z = 9

Last step is

No. Divisible by 3 or 7 b/w 1 - 200 = (no.s divisible by 3 ) + (no.s divisible by 7) - (no.s divisible by both)

= X+Y-Z

= 66+28-9 = 85

Numbers DIVINE by both 3 or 7 between 1 to 200 are 85.

Discussion

2.	Expand (3x – 7y - z)²
Answer» ANSWER: answer is Step-by-step explanation: 3x -7Y is 4xy 4xy - z is 3XYZ answer is 9 XYZ

2.

Expand (3x – 7y - z)²

Answer»

ANSWER:

answer is

Step-by-step explanation:

3x -7Y is 4xy

4xy - z is 3XYZ answer is 9 XYZ

Discussion

3.	The given angle using protractor 60 degree and 90 degree in pictures drawn
Answer» Answer: Step-by-step explanation: Argument Reason 1 Line SEGMENTS AB, PB, PA are congruent All drawn with the same compass width. 2 Triangle APB is an equilateral triangle Equilateral triangles are those with all three SIDES the same length. 3 Angle APB has a measure of 60° All three interior angles of an equilateral triangle have a measure of 60°. See Equilateral triangle definition Step 1: Draw the arm PA. Step 2: PLACE the point of the compass at P and draw an arc that cuts the arm at Q. Step 3: Place the point of the compass at Q and draw an arc of radius PQ that cuts the arc drawn in Step 2 at R. Step 4: With the point of the compass at R, draw an arc of radius PQ to cut the arc drawn in Step 2 at S. Step 5: With the point of the compass still at R, draw ANOTHER arc of radius PQ near T as shown. Step 6: With the point of the compass at S, draw an arc of radius PQ to cut the arc drawn in step 5 at T. Step 7: Join T to P. The angle APT is 90º.

3.

The given angle using protractor 60 degree and 90 degree in pictures drawn

Answer»

Answer:

Step-by-step explanation:

Argument Reason

1 Line SEGMENTS AB, PB, PA are congruent All drawn with the same compass width.

2 Triangle APB is an equilateral triangle Equilateral triangles are those with all three SIDES the same length.

3 Angle APB has a measure of 60° All three interior angles of an equilateral triangle have a measure of 60°. See Equilateral triangle definition

Step 1: Draw the arm PA.

Step 2: PLACE the point of the compass at P and draw an arc that cuts the arm at Q.

Step 3: Place the point of the compass at Q and draw an arc of radius PQ that cuts the arc drawn in Step 2 at R.

Step 4: With the point of the compass at R, draw an arc of radius PQ to cut the arc drawn in Step 2 at S.

Step 5: With the point of the compass still at R, draw ANOTHER arc of radius PQ near T as shown.

Step 6: With the point of the compass at S, draw an arc of radius PQ to cut the arc drawn in step 5 at T.

Step 7: Join T to P. The angle APT is 90º.

Discussion

4.	Write the terms and factors : 4x^5 − 6y^2 + 2xy
Answer» Answer: 4x^5 ,-6y^2 and 2XY are THREE the FACTORS.

4.

Write the terms and factors : 4x^5 − 6y^2 + 2xy

Answer»

Answer:

4x^5 ,-6y^2 and 2XY are THREE the FACTORS.

Discussion

5.	What is the Degree of the polynomial x square -15x+56
Answer» x² -15x+56= 0 Degree of the POLYNOMIAL is 2

5.

What is the Degree of the polynomial x square -15x+56

Answer»

x² -15x+56= 0

Degree of the POLYNOMIAL is 2

Discussion

6.	Log25 of the base 5
Answer» Answer:2 Pls MARK me branliest and FOLLOW if U find the ANS HELPFUL!

6.

Log25 of the base 5

Answer»

Answer:2

Pls MARK me branliest and FOLLOW if U find the ANS HELPFUL!

Discussion

7.	Solve using elimination method
Answer» Answer: bahut SAMAY lagatai BHAI MARD karde yaar Step-by-step EXPLANATION: .....

7.

Solve using elimination method

Answer»

Answer:

bahut SAMAY lagatai BHAI MARD karde yaar

Step-by-step EXPLANATION:

.....

Discussion

8.	Now deffine me1.care2.love me3.like me4sisterplease dont ans rudely or u can say 5.hate me
Answer» ANSWER: sisso is BETTER than these OPTIONS

8.

Now deffine me1.care2.love me3.like me4sisterplease dont ans rudely or u can say 5.hate me

Answer»

ANSWER:

sisso is BETTER than these OPTIONS

Discussion

9.	If A={1,2,3,4,5} B={2,4} C={1,3,5} Find AnB, BnC; A-B, B-A
Answer» Given, A = {1,2,3,4,5} B = {2,4} C = {1,3,5} We have to find, A ⋂ B B ⋂ C A - B B - A _________________________________ Firstly, A ⋂ B is a set of elements that are both in set A and set B. ⇒ A ⋂ B = {2,4} Since, Only 2 & 4 are common in SETS A and B. _________________________________ Similarly, B ⋂ C is a set of elements that are both in set A and set B. ⇒ B ⋂ C = {1,3,5} Since, Only 1, 3 & 5 are common in sets B and C. _________________________________ Here, A - B signifies elements that are present only in set A and not B. ⇒ A - B = {1,3,5} Since, 2 & 4 are present in both sets and 1,3 & 5 are only in set A. _________________________________ Similarly, B - A signifies elements that are present only in set B and not in set A. ⇒ B - A = ɸ Because, There are no elements of set B that are not present in set A. as B ⊂ A

9.

If A={1,2,3,4,5} B={2,4} C={1,3,5} Find AnB, BnC; A-B, B-A

Answer»

Given,

A = {1,2,3,4,5}
B = {2,4}
C = {1,3,5}

We have to find,

A ⋂ B
B ⋂ C
A - B
B - A

_________________________________

Firstly, A ⋂ B is a set of elements that are both in set A and set B.

⇒ A ⋂ B = {2,4}

Since, Only 2 & 4 are common in SETS A and B.

_________________________________

Similarly, B ⋂ C is a set of elements that are both in set A and set B.

⇒ B ⋂ C = {1,3,5}

Since, Only 1, 3 & 5 are common in sets B and C.

_________________________________

Here, A - B signifies elements that are present only in set A and not B.

⇒ A - B = {1,3,5}

Since, 2 & 4 are present in both sets and 1,3 & 5 are only in set A.

_________________________________

Similarly, B - A signifies elements that are present only in set B and not in set A.

⇒ B - A = ɸ

Because, There are no elements of set B that are not present in set A. as B ⊂ A

Discussion

10.	Date:ame:No.: ...ection:................ Subject:.............5 of the staff are male I of the works part at the& aquarium what Fraction ñ of the staff is Famalethe sharks are feet times a day during the morning FreeI of a ton of fish isted during the afternoon bedthe weight so of tish FedOFoh, how much is fed during the Feeting 2 at high
Answer» ANSWER: $\sqrt[0]{6} 8 \times \frac{9}{ = 3}$

10.

Date:ame:No.: ...ection:................ Subject:.............5 of the staff are male I of the works part at the& aquarium what Fraction ñ of the staff is Famalethe sharks are feet times a day during the morning FreeI of a ton of fish isted during the afternoon bedthe weight so of tish FedOFoh, how much is fed during the Feeting 2 at high

Answer»

ANSWER:

$\sqrt[0]{6} 8 \times \frac{9}{ = 3}$

Discussion

11.	Sinhx=x+x^3/3!+x^5/5!+....
Answer» ANSWER: I don't LIKE MATHS but I like SCIENCE

11.

Sinhx=x+x^3/3!+x^5/5!+....

Answer»

ANSWER:

I don't LIKE MATHS but I like SCIENCE

Discussion

12.	ppine A VE12345671 A 1246 0.57.f) 4 12 w ga)IREN15 3010-2) - rekven') - la
Answer» ANSWER: xxxxxxxxxxxxx xxxjjj

12.

ppine A VE12345671 A 1246 0.57.f) 4 12 w ga)IREN15 3010-2) - rekven') - la

Answer»

ANSWER:

xxxxxxxxxxxxx

xxxjjj

Discussion

13.	Which of the following is not the phase of OR methdlogy
Answer» To a PRAYER,if he PRAY for GOD,that means he believe that he and God could have a connection which God can hear him. To a prayer,if he pray for God,that means he doesn't believe God is a "capricious king" who always do ANYTHING he WANTS to without mercy.

Discussion

14.	2. Write any two rational number and twoirrational numbers between 3 and 5.
Answer» $\huge{\blue{\fcolorbox{blue}{lime}{\boxed{\orange{\bf{\underbrace{\overbrace{\fcolorbox{blue}{black}{ \underline{ \red{Answer }}}}}}}}}}}$ There are infinite rational NUMBERS between two rational numbers .. Two rational NUMBER:- 3.5, 4,4.5, ETC... ${ \boxed{ \underline{ \sf{ \purple{★Hope \: it \: helps \: you!★}}}}}$ ${ \boxed{ \underline{ \sf{ \pink{★Mark \: as \: Brainliest ★}}}}}$

14.

2. Write any two rational number and twoirrational numbers between 3 and 5.

Answer»

$\huge{\blue{\fcolorbox{blue}{lime}{\boxed{\orange{\bf{\underbrace{\overbrace{\fcolorbox{blue}{black}{ \underline{ \red{Answer }}}}}}}}}}}$

There are infinite rational NUMBERS between two rational numbers ..

Two rational NUMBER:- 3.5, 4,4.5, ETC...

${ \boxed{ \underline{ \sf{ \purple{★Hope \: it \: helps \: you!★}}}}}$

${ \boxed{ \underline{ \sf{ \pink{★Mark \: as \: Brainliest ★}}}}}$

Discussion

15.	10. ਇੱਕ ਚੱਕਰ ਦੀਆਂ ਦੋ ਸਪਰਸ਼ ਰੇਖਾਵਾਂ ਆਪਸਵਿੱਚ 60° ਦਾ ਕੋਣ ਬਣਾਉਂਦੀਆਂ ਹਨ।ਚੱਕਰ ਦੇ ਜਿਹੜੇਦੋ ਅਰਧ ਵਿਆਸਾਂ ਦੇ ਅੰਤ ਬਿੰਦੂ ਤੇ ਇਹ ਸਪਸ਼ਰੇਖਾਵਾਂ ਖਿਚੀਆਂ ਜਾਣੀਆਂ ਹਨ ਉਹ ਆਪਸ ਵਿੱਚ ਇੱਕਦੂਸਰੇ ਨਾਲ ਕਿੰਨਾ ਕੋਣ ਬਣਾਉਂਦੇ ਹਨ।A pair oftangents to a circle which is inclinedto each other at an angle of 60° aredrawn at ends of two radii. The anglebetween these radii must be: / Schaaकी दो स्पर्श रेखाएँ एक दूसरे के साथ 60° काकोण बनाती हैं। वृत्त की जिन दो त्रिज्याओं के अंतबिंदुओं पर स्पर्श रेखाएं खीची गयी है, वे आपस मेंएक दूसरे के साथ कितना कोण बनाती हैं?
Answer» ANSWER: SORRY I didn't UNDERSTAND this LANGUAGE

15.

10. ਇੱਕ ਚੱਕਰ ਦੀਆਂ ਦੋ ਸਪਰਸ਼ ਰੇਖਾਵਾਂ ਆਪਸਵਿੱਚ 60° ਦਾ ਕੋਣ ਬਣਾਉਂਦੀਆਂ ਹਨ।ਚੱਕਰ ਦੇ ਜਿਹੜੇਦੋ ਅਰਧ ਵਿਆਸਾਂ ਦੇ ਅੰਤ ਬਿੰਦੂ ਤੇ ਇਹ ਸਪਸ਼ਰੇਖਾਵਾਂ ਖਿਚੀਆਂ ਜਾਣੀਆਂ ਹਨ ਉਹ ਆਪਸ ਵਿੱਚ ਇੱਕਦੂਸਰੇ ਨਾਲ ਕਿੰਨਾ ਕੋਣ ਬਣਾਉਂਦੇ ਹਨ।A pair oftangents to a circle which is inclinedto each other at an angle of 60° aredrawn at ends of two radii. The anglebetween these radii must be: / Schaaकी दो स्पर्श रेखाएँ एक दूसरे के साथ 60° काकोण बनाती हैं। वृत्त की जिन दो त्रिज्याओं के अंतबिंदुओं पर स्पर्श रेखाएं खीची गयी है, वे आपस मेंएक दूसरे के साथ कितना कोण बनाती हैं?

Answer»

ANSWER:

SORRY I didn't UNDERSTAND this LANGUAGE

Discussion

16.	Expand :- (a+b-c) ²
Answer» Here's the REQUIRED ANSWER to your QUESTION

16.

Expand :- (a+b-c) ²

Answer»

Here's the REQUIRED ANSWER to your QUESTION

Discussion

17.	Draw a roti and write the shapes you get from it
Answer» ANSWER: ROTI is ROUND ....................

17.

Draw a roti and write the shapes you get from it

Answer»

ANSWER:

ROTI is ROUND ....................

Discussion

18.	Choose the correct answer :1 ) y3 x y7 ? =a)y7b) y10c ) y3d ) y212 ) 4x6 x 2x2a ) 8x8b ) 4x12c ) 2x8
Answer» ANSWER: y^10 is the CORRECT answer.

18.

Choose the correct answer :1 ) y3 x y7 ? =a)y7b) y10c ) y3d ) y212 ) 4x6 x 2x2a ) 8x8b ) 4x12c ) 2x8

Answer»

ANSWER:

y^10 is the CORRECT answer.

Discussion

19.	No.4. Find the missing entries if x,y are inversely proportioDe12.3WIN36ते 8
Answer» ANSWER: chick so THIRSTY FM Cincinnati shock SICK

19.

No.4. Find the missing entries if x,y are inversely proportioDe12.3WIN36ते 8

Answer»

ANSWER:

chick so THIRSTY FM Cincinnati shock SICK

Discussion

20.	A bag contains 15 red marbles 17 blue 11 black and 7 white marble. a marble is drawn at ramdom .find the probability( a white marble )either white or red marble show that sum of finding the probability of each type of marble
Answer» ANSWER: PLEASE now you HELP your BOOK

20.

A bag contains 15 red marbles 17 blue 11 black and 7 white marble. a marble is drawn at ramdom .find the probability( a white marble )either white or red marble show that sum of finding the probability of each type of marble

Answer»

ANSWER:

PLEASE now you HELP your BOOK

Discussion

21.	N=2p-3,‌‌p£n এবংn×nকে4দ্বারা ভাগ করলে ভাগ শেষ কত হবে?
Answer» ANSWER: Glendora SICKISH DIVORCED snuck FLIRTED CONK

21.

N=2p-3,‌‌p£n এবংn×nকে4দ্বারা ভাগ করলে ভাগ শেষ কত হবে?

Answer»

ANSWER:

Glendora SICKISH DIVORCED snuck FLIRTED CONK

Discussion

22.	Plz solve these sum plz
Answer» ANSWER: THANKS for FREE POINTS

22.

Plz solve these sum plz

Answer»

ANSWER:

THANKS for FREE POINTS

Discussion

23.	If (-2,-1)(1,0)(4,3) ar three successive vertices of a parallelogram find the fourth vertex
Answer» Step-by-step EXPLANATION: Arvsshdjfbbdjjdnniddmffjdnnf

23.

If (-2,-1)(1,0)(4,3) ar three successive vertices of a parallelogram find the fourth vertex

Answer»

Step-by-step EXPLANATION:

Arvsshdjfbbdjjdnniddmffjdnnf

Discussion

24.	Q2. A) Select and write the most appropriate alternative form those given in thebrackets.If y =8 then 3y=(28, 21, 42, 24)
Answer» Answer: 24 Step-by-step explanation: y=3 to FIND 3y, -(1) substitute y=3 in EQ -(1) therefore 3y =3×8=24

24.

Q2. A) Select and write the most appropriate alternative form those given in thebrackets.If y =8 then 3y=(28, 21, 42, 24)

Answer»

Answer:

24

Step-by-step explanation:

y=3

to FIND 3y, -(1)

substitute y=3 in EQ -(1)

therefore 3y =3×8=24

Discussion

25.	5years 5months 26days convert to days
Answer» Almost 2001 Days Mark as brainliest please.......

25.

5years 5months 26days convert to days

Answer»

Almost 2001 Days

Mark as brainliest please.......

Discussion

26.	In an A.P, if the 7th and 17th terms are 30 and 50 respectively, what is the sum of first 20 terms? The value of the first term = _______?
Answer» Answer : First term , a = 18 S(20) = 740 Note : ★ A.P. (Arithmetic Progression) : A sequence in which the difference between the consecutive terms are equal is said to be in A.P. ★ If a1 , a2 , a3 , . . . , an are in AP , then a2 - a1 = a3 - a2 = a4 - a3 = . . . ★ The common difference of an AP is given by ; d = a(n) - a(n-1) . ★ The NTH term of an AP is given by ; a(n) = a + (n - 1)d . ★ If a , b , c are in AP , then 2b = a + c . ★ The sum of nth terms of an AP is given by ; S(n) = (n/2)×[ 2a + (n - 1)d ] . or S(n) = (n/2)×(a + l) , l is the last term . Solution : Given : a(7) = 30 , a(17) = 50 To find : First term , a = ? , S(20) = ? We know that , the nth term of an AP is given by ; a(n) = a + (n - 1)d . Thus , => S(7) = a + (7 - 1)d => 30 = a + 6d => a = 30 - 6d ------(1) Also , => S(17) = a + (17 - 1)d => 50 = a + 16d => a = 50 - 16d ------(2) From eq-(1) and (2) , we have ; => 30 - 6d = 50 - 16d => 16d - 6d = 50 - 30 => 10D = 20 => d = 20/10 => d = 2 Now , Putting d = 2 in eq-(1) , we get ; => a = 30 - 6d => a = 30 - 6•2 => a = 30 - 12 => a = 18 Hence , The first term of the AP is 18 . Also , We know that , the sum of first n terms of an AP is given by ; S(n) = (n/2)•[ 2a + (n - 1)d ] Thus , The sum of first 20 terms of the AP will be given as ; => S(20) = (20/2)•[ 2a + (20 - 1)d ] => S(20) = 10•[ 2a + 19d ] => S(20) = 10•[ 2•18 + 19•2 ] => S(20) = 10•[ 36 + 38 ] => S(20) = 10•74 => S(20) = 740 Hence S(20) = 740 .

26.

In an A.P, if the 7th and 17th terms are 30 and 50 respectively, what is the sum of first 20 terms? The value of the first term = _______?

Answer»

Answer :

First term , a = 18

S(20) = 740

Note :

★ A.P. (Arithmetic Progression) : A sequence in which the difference between the consecutive terms are equal is said to be in A.P.

★ If a1 , a2 , a3 , . . . , an are in AP , then

a2 - a1 = a3 - a2 = a4 - a3 = . . .

★ The common difference of an AP is given by ; d = a(n) - a(n-1) .

★ The NTH term of an AP is given by ;

a(n) = a + (n - 1)d .

★ If a , b , c are in AP , then 2b = a + c .

★ The sum of nth terms of an AP is given by ; S(n) = (n/2)×[ 2a + (n - 1)d ] .

or S(n) = (n/2)×(a + l) , l is the last term .

Solution :

Given : a(7) = 30 , a(17) = 50
To find : First term , a = ? , S(20) = ?

We know that , the nth term of an AP is given by ;

a(n) = a + (n - 1)d .

Thus ,

=> S(7) = a + (7 - 1)d

=> 30 = a + 6d

=> a = 30 - 6d ------(1)

Also ,

=> S(17) = a + (17 - 1)d

=> 50 = a + 16d

=> a = 50 - 16d ------(2)

From eq-(1) and (2) , we have ;

=> 30 - 6d = 50 - 16d

=> 16d - 6d = 50 - 30

=> 10D = 20

=> d = 20/10

=> d = 2

Now ,

Putting d = 2 in eq-(1) , we get ;

=> a = 30 - 6d

=> a = 30 - 6•2

=> a = 30 - 12

=> a = 18

Hence ,

The first term of the AP is 18 .

Also ,

We know that , the sum of first n terms of an AP is given by ;

S(n) = (n/2)•[ 2a + (n - 1)d ]

Thus ,

The sum of first 20 terms of the AP will be given as ;

=> S(20) = (20/2)•[ 2a + (20 - 1)d ]

=> S(20) = 10•[ 2a + 19d ]

=> S(20) = 10•[ 2•18 + 19•2 ]

=> S(20) = 10•[ 36 + 38 ]

=> S(20) = 10•74

=> S(20) = 740

Hence S(20) = 740 .

Discussion

27.	Find the constant k so that the planes x-2y+kz=0 and 2x+5y-z=0 are at right ang les.Find the equation of the plane through (1 -1 -1) and perpendicular to these planes.I got the constant k = -8 so request you to find the equation of the plane
Answer» Q&A on Google How do you find the equation of a plane given a point and a perpendicular line? Profile picture 1 answer How do you find a plane that is perpendicular to another plane? Profile picture 1 answer How do you find the VECTOR perpendicular to a plane given three points? Profile picture 1 answer How do you find the feet of perpendicular from a point to a plane? Profile picture 1 answer View more Get the answer that you’re looking for added to the web Your QUESTION will be shared ANONYMOUSLY with online publishers who may be interested in answering it

27.

Find the constant k so that the planes x-2y+kz=0 and 2x+5y-z=0 are at right ang les.Find the equation of the plane through (1 -1 -1) and perpendicular to these planes.I got the constant k = -8 so request you to find the equation of the plane

Answer»

Q&A on Google

How do you find the equation of a plane given a point and a perpendicular line?

Profile picture

1 answer

How do you find a plane that is perpendicular to another plane?

Profile picture

1 answer

How do you find the VECTOR perpendicular to a plane given three points?

Profile picture

1 answer

How do you find the feet of perpendicular from a point to a plane?

Profile picture

1 answer

View more

Get the answer that you’re looking for added to the web

Your QUESTION will be shared ANONYMOUSLY with online publishers who may be interested in answering it

Discussion

28.	At each corner of a triangular field of sides 26m,28m and 30 m , a cow is tethered by a rope of length 7 m.The area (sq.m) ungrazed by the cow is.
Answer» Answer: 3tuioijhhdaq1eryiokbvditayrw57t80gpdtir79duteyoi6d85riw9dke97ryduwnsidjdirsitdkhdkfa6rei

28.

At each corner of a triangular field of sides 26m,28m and 30 m , a cow is tethered by a rope of length 7 m.The area (sq.m) ungrazed by the cow is.

Answer»

Answer:

3tuioijhhdaq1eryiokbvditayrw57t80gpdtir79duteyoi6d85riw9dke97ryduwnsidjdirsitdkhdkfa6rei

Discussion

29.	Sum of the two digit number is less by 54 from the number. The number obtained by interchanging the digits exceeds the given number by 27 . find the number
Answer» Answer:- LET the digit at ten's PLACE be x and digit at one's place be y. ⟶ The number = 10x + y GIVEN: Sum of the digits is 54 LESS than the number. ⟶ 10x + y - (x + y) = 54 ⟶ 10x + y - x - y = 54 ⟶ 9x = 54 ⟶ x = 54/9 ⟶ x = 6 Also given that, The number formed by reversing the digits exceeds the number by 27. ⟶ Reversed number = Original number + 27 ⟶ 10y + x = 10x + y + 27 ⟶ 10y + 6 - 10(6) - y = 27 ⟶ 9y = 27 - 6 + 60 ⟶ 9y = 81 ⟶ y = 81/9 ⟶ y = 9 ∴ The required number = 10(6) + 9 = 69.

29.

Sum of the two digit number is less by 54 from the number. The number obtained by interchanging the digits exceeds the given number by 27 . find the number

Answer»

Answer:-

LET the digit at ten's PLACE be x and digit at one's place be y.

⟶ The number = 10x + y

GIVEN:

Sum of the digits is 54 LESS than the number.

⟶ 10x + y - (x + y) = 54

⟶ 10x + y - x - y = 54

⟶ 9x = 54

⟶ x = 54/9

⟶ x = 6

Also given that,

The number formed by reversing the digits exceeds the number by 27.

⟶ Reversed number = Original number + 27

⟶ 10y + x = 10x + y + 27

⟶ 10y + 6 - 10(6) - y = 27

⟶ 9y = 27 - 6 + 60

⟶ 9y = 81

⟶ y = 81/9

⟶ y = 9

∴ The required number = 10(6) + 9 = 69.

Discussion

30.	-- 2(512)9फाइंड द वैल्यू ऑफ 512 पावर माइनस टू बाय 9
Answer» ANSWER: ................................................................

30.

-- 2(512)9फाइंड द वैल्यू ऑफ 512 पावर माइनस टू बाय 9

Answer»

ANSWER:

................................................................

Discussion

31.	Object on a screen located5 m from the object. (a) Describe the type of mirrorrequired. (b) Where should the mirror be positionedrelative to the object?(Ans 2.08.com1. A real object is located at the zero end of a meterstick. A concave mirror located at the 100 cmend ofthe meter stick forms an image of the objectat the70 cm position. A convex mirror placed at the60 cm position forms a final image at the10 cm point. What is the radius of curvature of theconvex mirror?2. A spherical convex mirror has a radias of 40 cm.
Answer» ANSWER: Step-by-step explanation: here for concave mirror u = 100 cm. v= 70 cm. we know 1/f = 1/v +1/u. 1/f =1/100 +1/70 on solving f =7000/170 =41.17 cm. radius of curvature for concave mirror = 2 * 41.7 cm = 82.35 cm for convex mirror image formed by concave mirror ACT as OBJECT for comvex mirror so for convex mirror u = -10 cm. v= 50 cm. again 1/f = 1/v +1/u 1/f = 1/50 -1/10. 1/f =(1-5)/50. 1/f = -4/50 1/f = -4/50 f= -50/4. f= -12.5 cm radius of curvature for convex mirror = 2 * focal length of convex mirror. radius of curvature for convex mirror = 2 *12.5 =25 cm.

31.

Object on a screen located5 m from the object. (a) Describe the type of mirrorrequired. (b) Where should the mirror be positionedrelative to the object?(Ans 2.08.com1. A real object is located at the zero end of a meterstick. A concave mirror located at the 100 cmend ofthe meter stick forms an image of the objectat the70 cm position. A convex mirror placed at the60 cm position forms a final image at the10 cm point. What is the radius of curvature of theconvex mirror?2. A spherical convex mirror has a radias of 40 cm.

Answer»

ANSWER:

Step-by-step explanation:

here for concave mirror

u = 100 cm.

v= 70 cm.

we know

1/f = 1/v +1/u.

1/f =1/100 +1/70

on solving

f =7000/170 =41.17 cm.

radius of curvature for concave mirror = 2 * 41.7 cm = 82.35 cm

for convex mirror image formed by concave mirror ACT as OBJECT for comvex mirror so for convex mirror

u = -10 cm.

v= 50 cm.

again

1/f = 1/v +1/u

1/f = 1/50 -1/10.

1/f =(1-5)/50.

1/f = -4/50

f= -50/4.

f= -12.5 cm

radius of curvature for convex mirror = 2 * focal length of convex mirror.

radius of curvature for convex mirror = 2 *12.5 =25 cm.

Discussion

32.	A rectangular paper of width 20 cm is rolled along its width and a cyclinder is formed. find the volume of the cylinder, if the length of paper is 44 cm
Answer» Answer: Volume = 880 cm³ STEP-by-step EXPLANATION: PLEASE check the ATTACHMENT, as it has the step by step explanation.

32.

A rectangular paper of width 20 cm is rolled along its width and a cyclinder is formed. find the volume of the cylinder, if the length of paper is 44 cm

Answer»

Answer:

Volume = 880 cm³

STEP-by-step EXPLANATION:

PLEASE check the ATTACHMENT, as it has the step by step explanation.

Discussion

33.	(iv) 350 g as a percentage of 5,6 kg.
Answer» Answer: 25 % VALUE = 2 KG . PUTTING the value of These in above equation . We get : Therefore , the answer is 25 %

33.

(iv) 350 g as a percentage of 5,6 kg.

Answer»

Answer:

25 %

VALUE = 2 KG . PUTTING the value of These in above equation . We get : Therefore , the answer is 25 %

Discussion

34.	The daliy income of a group of factory workers is given in the following tabl.
Answer» ANSWER: very very very very very HARD QUESTIONS

34.

The daliy income of a group of factory workers is given in the following tabl.

Answer»

ANSWER:

very very very very very HARD QUESTIONS

Discussion

35.	329. In class IV,of 56 students went on a exhibition. How many students went on7the exhibition and how many stayed behind?a) 26, 36b) 24, 32c) 25, 31d) 24, 36
Answer» Answer: B)24,32 Step-by-step explanation: PLEASE make it BRAINLIEST ANSWERAND follow me

35.

329. In class IV,of 56 students went on a exhibition. How many students went on7the exhibition and how many stayed behind?a) 26, 36b) 24, 32c) 25, 31d) 24, 36

Answer»

Answer:

B)24,32

Step-by-step explanation:

PLEASE make it BRAINLIEST ANSWERAND follow me

Discussion

36.	A to the power 2+ax+ab+bx
Answer» Answer: = (a+X) ( a+ b) Step-by-step EXPLANATION: A2 + ax + ab + bx = (a2 + ax) + (ab + bx) = a (a + x) + b (a + x) = (a + x) (a + b)

36.

A to the power 2+ax+ab+bx

Answer»

Answer:

= (a+X) ( a+ b)

Step-by-step EXPLANATION:

A2 + ax + ab + bx

= (a2 + ax) + (ab + bx)

= a (a + x) + b (a + x)

= (a + x) (a + b)

Discussion

37.	What are the answers in 40m^2 3meters width
Answer» Step-by-step explanation: Sir, With due respect, I would LIKE to draw the attention of the concerned authority through your newspaper towards the IRREGULAR supply of electricity in my locality. Since last WEEK the whole AREA is suffering from this problem. ... I expect that through your newspaper this issue would be looked upon as as.assoon

37.

What are the answers in 40m^2 3meters width

Answer»

Step-by-step explanation:

Sir, With due respect, I would LIKE to draw the attention of the concerned authority through your newspaper towards the IRREGULAR supply of electricity in my locality. Since last WEEK the whole AREA is suffering from this problem. ... I expect that through your newspaper this issue would be looked upon as as.assoon

Discussion

38.	? is a number and 17x ? x 10 = 4420. The value of ? can be found by
Answer» Answer: 2 Step-by-step explanation: 17 × ? × 10= 4420 170×?= 4420 ?=4420/170 ?=26.

38.

? is a number and 17x ? x 10 = 4420. The value of ? can be found by

Answer»

Answer:

2

Step-by-step explanation:

17 × ? × 10= 4420

170×?= 4420

?=4420/170

?=26.

Discussion

39.	If g(x) = 7x - a, where a is a constant, and g(10) =3g(20), then g(30) =
Answer» Answer: 3g(20) is the answer Step-by-step EXPLANATION:* SOLUTION: If g (x)=7x-a where a is a constant and g(10)=3g(20) then g(30)= -175 175 70 35. 1. Your first step is to determine the VALUE of "a", the constant term. For it, use the CONDITION g(10)=3*g(20).

39.

If g(x) = 7x - a, where a is a constant, and g(10) =3g(20), then g(30) =

Answer»

Answer:

3*g(20) is the answer

Step-by-step EXPLANATION:

SOLUTION: If g (x)=7x-a where a is a constant and g(10)=3g(20) then g(30)= -175 175 70 35. 1. Your first step is to determine the VALUE of "a", the constant term. For it, use the CONDITION g(10)=3*g(20).

Discussion

40.	Convert the following into minutes a) 2 hours and 8 minutes
Answer» Answer: 2 hours MEANS 120 MINUTES + 8 minutes = 128 minutes.

40.

Convert the following into minutes a) 2 hours and 8 minutes

Answer»

Answer:

2 hours MEANS 120 MINUTES + 8 minutes = 128 minutes.

Discussion

41.	(a+b)square =a square + _+_=_
Answer» ANSWER: a^2 + b^2 +2AB.........

41.

(a+b)square =a square + _+_=_

Answer»

ANSWER:

a^2 + b^2 +2AB.........

Discussion

42.	Find the probability that a leap year contains 52 Sundays.
Answer» ANSWER: I HOPE it's HELP you.......

42.

Find the probability that a leap year contains 52 Sundays.

Answer»

ANSWER:

I HOPE it's HELP you.......

Discussion

43.	Give examples of three sets a,b,c for which a_(b_c)=(a_b)_c
Answer» Answer: 2-(6-9)=(2-6)-9 10-(30-20)=(10-30)-20 5-(80-7)=(5-80)-20 Step-by-step EXPLANATION: HOPE it helped Mark as BRAINLIEST

43.

Give examples of three sets a,b,c for which a_(b_c)=(a_b)_c

Answer»

Answer:

2-(6-9)=(2-6)-9
10-(30-20)=(10-30)-20
5-(80-7)=(5-80)-20

Step-by-step EXPLANATION:

HOPE it helped

Mark as BRAINLIEST

Discussion

44.	36 divided by 0.4 explain in berify
Answer» Answer: 90 Step-by-step EXPLANATION: *PLZ* *Mark me ANSWERS AS BRAINLIST* *PLZ FOLLOW ME PLZ PLZ MARK*

44.

36 divided by 0.4 explain in berify

Answer»

Answer:

90

Step-by-step EXPLANATION:

PLZ Mark me ANSWERS AS BRAINLIST
PLZ FOLLOW ME PLZ PLZ MARK

Discussion

45.	3. Solve the following equations by factorization.(a) 2x2 + x - 6=0(b) 5x² - 4x = 1
Answer» HOPE it HELPS.........

45.

3. Solve the following equations by factorization.(a) 2x2 + x - 6=0(b) 5x² - 4x = 1

Answer»

HOPE it HELPS.........

Discussion

46.	Write the degree of (x2+1)(x3+1)2the second question
Answer» ANSWER: YAAR .....shivam seriously main NAHI dekhti....... mummy kasam....ab TOH hua trust

46.

Write the degree of (x2+1)(x3+1)2the second question

Answer»

ANSWER:

YAAR .....shivam seriously main NAHI dekhti....... mummy kasam....ab TOH hua trust

Discussion

47.	Calculatethe follow groupMean, Median, mode fromdata.
Answer» $where \ is \ the \ data \ ..... ???$

47.

Calculatethe follow groupMean, Median, mode fromdata.

Answer»

$where \ is \ the \ data \ ..... ???$

Discussion

48.	III. Subtract the followingС.73456281 - 52893280
Answer» 73456281-52893280=20563001

Discussion

49.	A rectangular block is 10 cm long, 5 cm broad and 6 m high. Find its volume.
Answer» Given :- Length of the rectangle = 10 cm Breadth of the rectangle = 5 cm HEIGHT of the rectangle = 6 cm To FIND :- The volume of the rectangle. Analysis :- Here, we are given with length, breadth and height of the rectangle. Substitute the given values in the formula of volume of a rectangle and then you can find the volume accordingly. Solution :- We know that, l = Length b = Breadth h = Height By the formula, $\underline{\boxed{\sf Volume \ of \ a \ rectangle=Length \times Breadth \times Height}}$ Given that, Length (l) = 10 cm Breadth (b) = 5 cm Height (h) = 6 cm Substituting their values, Volume = 10 × 5 × 6 Volume = 300 cm³ Therefore, the volume of the rectangular BLOCK is 300 cm³.

49.

A rectangular block is 10 cm long, 5 cm broad and 6 m high. Find its volume.

Answer»

Given :-

Length of the rectangle = 10 cm

Breadth of the rectangle = 5 cm

HEIGHT of the rectangle = 6 cm

To FIND :-

The volume of the rectangle.

Analysis :-

Here, we are given with length, breadth and height of the rectangle.

Substitute the given values in the formula of volume of a rectangle and then you can find the volume accordingly.

Solution :-

We know that,

l = Length
b = Breadth
h = Height

By the formula,

$\underline{\boxed{\sf Volume \ of \ a \ rectangle=Length \times Breadth \times Height}}$

Given that,

Length (l) = 10 cm

Breadth (b) = 5 cm

Height (h) = 6 cm

Substituting their values,

Volume = 10 × 5 × 6

Volume = 300 cm³

Therefore, the volume of the rectangular BLOCK is 300 cm³.

Discussion

50.	Find the next letter in the following series.A, C, F, J, O,?
Answer» Answer: the NEXT LETTER in the following SERIES is 'U'

50.

Find the next letter in the following series.A, C, F, J, O,?

Answer»

Answer:

the NEXT LETTER in the following SERIES is 'U'

Discussion

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