332354 + Interview Questions in Secondary School in Math

1.	9. Three bells toll at the intervals of 30.4060 seconds, In 30 minutes, how many tithey will toll together?
Answer» Step-by-step EXPLANATION: We have to FIND the L.C.M of 30,45,60 30 =2× 5×3 45= 3 x 3×5 60 =2× 2× 3 x 5 L.c.m ( 30,45,60) = 2x2x3×3×5 = 180 min = 180 /60 = 3 hours. Hence,they will toll together at = 9:30 a.m +3 HRS= 12:30 p.m

1.

9. Three bells toll at the intervals of 30.4060 seconds, In 30 minutes, how many tithey will toll together?

Answer»

Step-by-step EXPLANATION:

We have to FIND the L.C.M of 30,45,60

30 =2× 5×3

45= 3 x 3×5

60 =2× 2× 3 x 5

L.c.m ( 30,45,60) = 2x2x3×3×5 = 180 min

= 180 /60 = 3 hours.

Hence,they will toll together at = 9:30 a.m +3 HRS= 12:30 p.m

Discussion

2.	Sin a / 1 + cos A is equal 1 - cos a/sin A
Answer» HI mate welcome to the CONCEPT of trigonometry formula used $\sin {}^{2}( x) + \cos {}^{2}(x) = 1$ I HOPE it HELP you

2.

Sin a / 1 + cos A is equal 1 - cos a/sin A

Answer»

HI mate

welcome to the CONCEPT of trigonometry

formula used

$\sin {}^{2}( x) + \cos {}^{2}(x) = 1$

I HOPE it HELP you

Discussion

3.	M
Answer» Step-by-step EXPLANATION: STEP1: $(105 \times 100 - 5 ) + (100 - 4 \times 104)$ $finally \: answer \: comes \: as \: 1$ mark me BRAINLEIST

3.

M

Answer»

Step-by-step EXPLANATION:

STEP1:

$(105 \times 100 - 5 ) + (100 - 4 \times 104)$

$finally \: answer \: comes \: as \: 1$

mark me BRAINLEIST

Discussion

4.	Find the compound interest on 6250 at 16 percent for 3 years compounded annually
Answer» Step-by-step EXPLANATION: HOPE it HELP you........

4.

Find the compound interest on 6250 at 16 percent for 3 years compounded annually

Answer»

Step-by-step EXPLANATION:

HOPE it HELP you........

Discussion

5.	Find 3 rational number between -2/3 and 4/5
Answer» ANSWER: hope it helps mark as brainliest

5.

Find 3 rational number between -2/3 and 4/5

Answer»

ANSWER:

hope

it

helps

mark

as

brainliest

Discussion

6.	PLEASE HELP ME IN THIS QUESTION.....
Answer» ANSWER: a^2 + 4b^2 = 12AB a^2 + (2B)^2+4ab = 12ab + 4ab (a+2b)^2 = 16ab Take LOG on both sides 2log(a+2b) = log16 + logab log(a+2b) = 1/2 (4log2+logab) log(a+2b)=2log2+1/2logab

6.

PLEASE HELP ME IN THIS QUESTION.....

Answer»

ANSWER:

a^2 + 4b^2 = 12AB

a^2 + (2B)^2+4ab = 12ab + 4ab

(a+2b)^2 = 16ab

Take LOG on both sides

2log(a+2b) = log16 + logab

log(a+2b) = 1/2 (4log2+logab)

log(a+2b)=2log2+1/2logab

Discussion

7.	Find the mesure which is not being the triangles measure a)4cm, 5cm, 6cm, b)8cm 10cm, 6cm c)12cm, 15cm, 13cm d) 6cm, 7cm, 15cm
Answer» d) 6cm,7cm,15cm is the MEASURE which is not being the TRIANGLES measure

7.

Find the mesure which is not being the triangles measure a)4cm, 5cm, 6cm, b)8cm 10cm, 6cm c)12cm, 15cm, 13cm d) 6cm, 7cm, 15cm

Answer»

d) 6cm,7cm,15cm is the MEASURE which is not being the TRIANGLES measure

Discussion

8.	Question number 6.......
Answer» HOPE it's HELPFUL for you....

8.

Question number 6.......

Answer»

HOPE it's HELPFUL for you....

Discussion

9.	78) What is the 5000th number inthe list of all natural numbers withthe perfect squares deleted?A) 5071B) 4929C) 5070D) 4930
Answer» There are 70 perfect squares between 1 and 5000. If they are REMOVED, then 5000th no. in the list WOULD be *5071* (because we have to remove 5041 as it is a perfect SQUARE of 71). Hope it helps!!! :)

9.

78) What is the 5000th number inthe list of all natural numbers withthe perfect squares deleted?A) 5071B) 4929C) 5070D) 4930

Answer»

There are 70 perfect squares between 1 and 5000. If they are REMOVED, then 5000th no. in the list WOULD be 5071 (because we have to remove 5041 as it is a perfect SQUARE of 71).

Hope it helps!!! :)

Discussion

10.	Upto Thousars nearest to ten.2. 11354. 376326. 2388198. 11003nearest to ten
Answer» Step-by-step explanation: 1).1140 2).37630 3).238820 4).11000 is the ANSWER

10.

Upto Thousars nearest to ten.2. 11354. 376326. 2388198. 11003nearest to ten

Answer»

Step-by-step explanation:

1).1140

2).37630

3).238820

4).11000

is the ANSWER

Discussion

11.	How many non-square no. Lie between 205 and206
Answer» ANSWER: here is your answer HOPE it HELPS you

11.

How many non-square no. Lie between 205 and206

Answer»

ANSWER:

here is your answer

HOPE it HELPS you

Discussion

12.	Find the least Six digit number exactly divisible by 85
Answer» Answer: 1234710÷85=14526 Hope it HELPS

12.

Find the least Six digit number exactly divisible by 85

Answer»

Answer:

1234710÷85=14526

Hope it HELPS

Discussion

13.	X square- 4 x +4y-y square
Answer» ANSWER: What to do with that MST

13.

X square- 4 x +4y-y square

Answer»

ANSWER:

What to do with that MST

Discussion

14.	Evaluate [(1/2)-1-(1/3)-1]-1
Answer» ANSWER: Step-by-step EXPLANATION: We will FIRST take the PCM {(3-6-2-6)/6}-1 -11/6-1 -17/6 Hope it helps☺️

14.

Evaluate [(1/2)-1-(1/3)-1]-1

Answer»

ANSWER:

Step-by-step EXPLANATION:

We will FIRST take the PCM

{(3-6-2-6)/6}-1

-11/6-1

-17/6

Hope it helps☺️

Discussion

15.	Hiii.......... what is normal body temperature
Answer» Answer: 37°c is the NORMAL BODY TEMPERATURE

15.

Hiii.......... what is normal body temperature

Answer»

Answer:

37°c is the NORMAL BODY TEMPERATURE

Discussion

16.	...dll oy, 00, 07.............15. If the 10th term of an A.P. is 52 and 17"" term of an A.P. is 52 and 17th term is 20 more than the 13th term, find the A.p
Answer» ANSWER: a+9d = 52 a+16d = a+12d+20 4d = 20 d = 5 a+9(5) = 52 a+45 = 52 a = 7 AP: 7,12,17,22.......

16.

...dll oy, 00, 07.............15. If the 10th term of an A.P. is 52 and 17"" term of an A.P. is 52 and 17th term is 20 more than the 13th term, find the A.p

Answer»

ANSWER:

a+9d = 52

a+16d = a+12d+20

4d = 20

d = 5

a+9(5) = 52

a+45 = 52

a = 7

AP: 7,12,17,22.......

Discussion

17.	(-75)×8 evaluate it please I want your help
Answer» hey *mate* given here (-75)×8=? =(-75)×8 = -600 I *HOPES* *its* *HELPS* u. *please* *FOLLOW* me!!✌✌ @abhi.❤❤

17.

(-75)×8 evaluate it please I want your help

Answer»

hey mate

given here

(-75)×8=?

=(-75)×8

= -600

I HOPES its HELPS u.

please FOLLOW me!!✌✌

@abhi.❤❤

Discussion

18.	find the greatest number of five digits which on dividing by 3,12,18,24,30,36leaves remainder 2,11,17,23,29,35 respectively
Answer» ANSWER: Its easy Subtract all the respective numbers and then FIND the hcf either by LONG DIVISION METHOD or by prime factors

18.

find the greatest number of five digits which on dividing by 3,12,18,24,30,36leaves remainder 2,11,17,23,29,35 respectively

Answer»

ANSWER:

Its easy

Subtract all the respective numbers and then FIND the hcf either by LONG DIVISION METHOD or by prime factors

Discussion

19.	Replace * with the (a) smallest digit (b) greatest digit to make the 75*481 divisible by 3
Answer» Answer: 75*481=752481 because after adding all DIGITS we get 27 which is divisible by 3 I HOE u will understand

19.

Replace * with the (a) smallest digit (b) greatest digit to make the 75*481 divisible by 3

Answer»

Answer:

75*481=752481 because after adding all DIGITS we get 27 which is divisible by 3 I HOE u will understand

Discussion

20.	Divide 3x^3 - 6x^2 - 20x + 14 by x^2 - 5x + 6 and verify division algorithm
Answer» YOUR ANSWER IS IN THE ATTACHMENT.. HOPE IT HELPS.... PLEASE MARK BRAINLIEST.....

20.

Divide 3x^3 - 6x^2 - 20x + 14 by x^2 - 5x + 6 and verify division algorithm

Answer»

YOUR ANSWER IS IN THE ATTACHMENT..

HOPE IT HELPS....

PLEASE MARK BRAINLIEST.....

Discussion

21.	What is the smallest factor of 2314
Answer» Answer: 1 is the SMALLEST FACTOR of 2314

21.

What is the smallest factor of 2314

Answer»

Answer:

1 is the SMALLEST FACTOR of 2314

Discussion

22.	Find three rational numbers between 2 and 2.5
Answer» ANSWER: Step-by-step EXPLANATION: It is very EASY... Answer is : 2.1,2.2,2.3...... HOPE it HELPS....☺️

22.

Find three rational numbers between 2 and 2.5

Answer»

ANSWER:

Step-by-step EXPLANATION:

It is very EASY...

Answer is :

2.1,2.2,2.3......

HOPE it HELPS....☺️

Discussion

23.	Factorise-3x^2-x-4Step by step will marked as brainliest
Answer» here is the STEP WISE answer HOPE it helps pls mark it as BRAINLIEST ✌️✌️

23.

Factorise-3x^2-x-4Step by step will marked as brainliest

Answer»

here is the STEP WISE answer

HOPE it helps

pls mark it as BRAINLIEST ✌️✌️

Discussion

24.	How to represent family members names through sets
Answer» FAMILY = in curly BRAKETS name of family members SEPARATED by comma

Discussion

25.	(x+y+z)²+(x+y/2+z/3)²-(x/2+y/3+z/4)²
Answer» (x+y+z)²+(x+y/2+z/3)²-(x/2+y/3+z/4) =x+y+z²+x+y/2+z/3²-x×2-y×3-z×4 =x+y+z²/2+z/3²×2×3×4 =x+y+z²/2+z/432

25.

(x+y+z)²+(x+y/2+z/3)²-(x/2+y/3+z/4)²

Answer»

(x+y+z)²+(x+y/2+z/3)²-(x/2+y/3+z/4)

=x+y+z²+x+y/2+z/3²-x×2-y×3-z×4

=x+y+z²/2+z/3²×2×3×4

=x+y+z²/2+z/432

Discussion

26.	Define Banking?????????
Answer» ANSWER: The BUSINESS conducted or services offered by bank Step-by-step EXPLANATION: MARK as BRAINLIST

26.

Define Banking?????????

Answer»

ANSWER:

The BUSINESS conducted or services offered by bank

Step-by-step EXPLANATION:

MARK as BRAINLIST

Discussion

27.	Plzzzzzzzzzzzzzzzzz...... help me to solve this question
Answer» HOPE it be correct.... TELL ANSW

27.

Plzzzzzzzzzzzzzzzzz...... help me to solve this question

Answer»

HOPE it be

correct....

TELL ANSW

Discussion

28.	(ii)9 X (-13) + 9 X (-7)
Answer» SALUT MATE!! = 9 x (-13) + 9 x (-7) = -117 + (-63) = -117 - 63 = -180

28.

(ii)9 X (-13) + 9 X (-7)

Answer»

SALUT MATE!!

= 9 x (-13) + 9 x (-7)

= -117 + (-63)

= -117 - 63

= -180

Discussion

29.	Is co-ordinate point (0,5) and (5,0) be same discuss
Answer» ANSWER: NO Step-by-step explanation: the coordinate X and y are DIFFERENT in the both the cases and if you MARK it over the graph you will find that it does not meet. So they are not same Thanks

29.

Is co-ordinate point (0,5) and (5,0) be same discuss

Answer»

ANSWER:

NO

Step-by-step explanation:

the coordinate X and y are DIFFERENT in the both the cases and if you MARK it over the graph you will find that it does not meet. So they are not same

Thanks

Discussion

30.	किसी आयताकार हॉल के फर्श का परिमाप 250 m है। यदि 10 प्रति की दर से चारों दीवारों पर पेंट कराने की लागत रु 15000 है, तो इस हॉल की ऊँचाई ज्ञात कीजिए।[संकेत : चारों डिब्बों का क्षेत्रफल = पाश्र्व पृष्ठीय क्षेत्रफल ]
Answer» Answer: इस हॉल की ऊंचाई 6 मी है। Step-by-step explanation: माना आयताकार हॉल की लंबाई (l) , चौड़ाई (b) तथा ऊंचाई(h) दिया है : चारों दीवारों पर पेंट करने की लागत = ₹ 15000 तथा प्रति मी² पेंट करने की लागत = ₹ 10 अब, चारों दीवारों का क्षेत्रफल = चारों दीवारों पर पेंट करने की लागत / प्रति मी² पेंट करने की लागत = ₹ 15000/₹10 = 1500 मी² चारों दीवारों का क्षेत्रफल = 1500 मी² दिया है : हाल का परिमाप = 2(l + b) = 250 मी चारों दीवारों का क्षेत्रफल = 1500 मी² 2(l + b) h = 1500 ⇒ 250 × h = 1500 ⇒ h = 1500/250 ⇒ h = 6 मी अतः, हाल की ऊंचाई 6 मी है। आशा है कि यह उत्तर आपकी मदद करेगा। इस पाठ से संबंधित कुछ और प्रश्न : 1.5 m लंबा, 1.25 m चौड़ा और 65 CM गहरा प्लास्टिक का एक डिब्बा बनाया जाना है। इसे ऊपर से खुला रखना है। प्लास्टिक शीट की मोटाई को नगण्य मानते हुए, निर्धारित कीजिए: (i) डिब्बा बनाने के लिए आवश्यक प्लास्टिक शीट का क्षेत्रफल। (ii) इस शीट का मूल्य, यदि $1m^2$ शीट का मूल्य रु 20 है। brainly.in/question/10330481 एक कमरे की लंबाई, चौड़ाई और ऊँचाई क्रमशः 5 m, 4m और 3 m हैं। 7.50 प्रति $m^2$ की दर से इस कमरे की दीवारों और छत पर सफेदी कराने का व्यय ज्ञात कीजिए। brainly.in/question/10330695

30.

किसी आयताकार हॉल के फर्श का परिमाप 250 m है। यदि 10 प्रति की दर से चारों दीवारों पर पेंट कराने की लागत रु 15000 है, तो इस हॉल की ऊँचाई ज्ञात कीजिए।[संकेत : चारों डिब्बों का क्षेत्रफल = पाश्र्व पृष्ठीय क्षेत्रफल ]

Answer»

Answer:

इस हॉल की ऊंचाई 6 मी है।

Step-by-step explanation:

माना आयताकार हॉल की लंबाई (l) , चौड़ाई (b) तथा ऊंचाई(h)

दिया है : चारों दीवारों पर पेंट करने की लागत = ₹ 15000 तथा प्रति मी² पेंट करने की लागत = ₹ 10

अब, चारों दीवारों का क्षेत्रफल = चारों दीवारों पर पेंट करने की लागत / प्रति मी² पेंट करने की लागत

= ₹ 15000/₹10

= 1500 मी²

चारों दीवारों का क्षेत्रफल = 1500 मी²

दिया है : हाल का परिमाप = 2(l + b) = 250 मी

चारों दीवारों का क्षेत्रफल = 1500 मी²

2(l + b) h = 1500

⇒ 250 × h = 1500

⇒ h = 1500/250

⇒ h = 6 मी

अतः, हाल की ऊंचाई 6 मी है।

आशा है कि यह उत्तर आपकी मदद करेगा।

इस पाठ से संबंधित कुछ और प्रश्न :

1.5 m लंबा, 1.25 m चौड़ा और 65 CM गहरा प्लास्टिक का एक डिब्बा बनाया जाना है। इसे ऊपर से खुला रखना है। प्लास्टिक शीट की मोटाई को नगण्य मानते हुए, निर्धारित कीजिए:

(i) डिब्बा बनाने के लिए आवश्यक प्लास्टिक शीट का क्षेत्रफल।

(ii) इस शीट का मूल्य, यदि $1m^2$ शीट का मूल्य रु 20 है।

brainly.in/question/10330481

एक कमरे की लंबाई, चौड़ाई और ऊँचाई क्रमशः 5 m, 4m और 3 m हैं। 7.50 प्रति $m^2$ की दर से इस कमरे की दीवारों और छत पर सफेदी कराने का व्यय ज्ञात कीजिए।

brainly.in/question/10330695

Discussion

31.	Learn the values of all the trignometric values of:0 degree 30 degree 45 degree 60 degree and 90 degree
Answer» INVERSE sin 0 = 0 cosec0=infinity sin 30 = 1/2 cosec30=2 sin 45=1/√2 cosec45=√2 sin 60=√3/2 cosec60 =2/√3 SIN90 =1 cosec90=1 reverse inverse cos 0=1 sec0=0 cos30=√3/2 sec30=2/√3 cos45= 1/√2 sec45=√2 cos60=1/2 sec60=2 cos90=0 sec90=infinity

31.

Learn the values of all the trignometric values of:0 degree 30 degree 45 degree 60 degree and 90 degree

Answer»

INVERSE

sin 0 = 0 cosec0=infinity

sin 30 = 1/2 cosec30=2

sin 45=1/√2 cosec45=√2

sin 60=√3/2 cosec60 =2/√3

SIN90 =1 cosec90=1

reverse inverse

cos 0=1 sec0=0

cos30=√3/2 sec30=2/√3

cos45= 1/√2 sec45=√2

cos60=1/2 sec60=2

cos90=0 sec90=infinity

Discussion

32.	》♥️♥️ HERE IS THE QUESTION ⤴️⤴️⤴️❤❤《PLSSS HELP ME!!! THERE R 2 QUESTIONS!!❤^.^"❤⭐⭐NOTE:- ⚪⚪ NO IRRELEVANT/WRONG ANSWERS!! DON'T ANSWER IF U R NOT SURE!!!✌✌PLSSS MAADAT KARDO NA!!:) :)♥️-♥️
Answer» HOLA !!! ⭐ANSWER IS ATTACHED IN THE PIC.⭐ NOTE :- 1st question has some error. HOPE IT HELPS UHH #CHEERS

32.

》♥️♥️ HERE IS THE QUESTION ⤴️⤴️⤴️❤❤《PLSSS HELP ME!!! THERE R 2 QUESTIONS!!❤^.^"❤⭐⭐NOTE:- ⚪⚪ NO IRRELEVANT/WRONG ANSWERS!! DON'T ANSWER IF U R NOT SURE!!!✌✌PLSSS MAADAT KARDO NA!!:) :)♥️-♥️

Answer»

HOLA !!!

⭐ANSWER IS ATTACHED IN THE PIC.⭐

NOTE :- 1st question has some error.

HOPE IT HELPS UHH #CHEERS

Discussion

33.	3. Simplify:(i) (-8) 9 + (-8) X 7
Answer» ANSWER: -128 Step-by-step EXPLANATION: -72+(-56) -72-56 -128

33.

3. Simplify:(i) (-8) 9 + (-8) X 7

Answer»

ANSWER:

-128

Step-by-step EXPLANATION:

-72+(-56)

-72-56

-128

Discussion

34.	In the figure, O, P and R are the centers of threecircles, each with radius 2. What is the perimeterof the shaded region?
Answer» Answer: The perimeter of the SHADED region is 2+2+2=6 Step-by-step explanation: OP ,OR and PR is approximately EQUAL to the radius. Therefore,The perimeter of the shaded region, OP+OR+PR=2+2+2=6

34.

In the figure, O, P and R are the centers of threecircles, each with radius 2. What is the perimeterof the shaded region?

Answer»

Answer:

The perimeter of the SHADED region is 2+2+2=6

Step-by-step explanation:

OP ,OR and PR is approximately EQUAL to the radius.

Therefore,The perimeter of the shaded region,

OP+OR+PR=2+2+2=6

Discussion

35.	The 5th and 10th term of an AP are in the ratio 1:2 and 12th term is 36 ,find the AP
Answer» ANSWER: HEY mate, the answer is in the attachment Step-by-step explanation: Hope it helps Mark it as brainliest and Don't FORGET to follow me

35.

The 5th and 10th term of an AP are in the ratio 1:2 and 12th term is 36 ,find the AP

Answer»

ANSWER:

HEY mate, the answer is in the attachment

Step-by-step explanation:

Hope it helps

Mark it as brainliest and Don't FORGET to follow me

Discussion

36.	ABCD is a rhombus and P, Q, R and S are the mid-points of the sides AB,BC,CD and DA respectively. Show that the quadrilateral PQRS is a rectangle ....#taylor solve ....
Answer» Step-by-step EXPLANATION: HOPE it helps Mark as BRAINLIEST

36.

ABCD is a rhombus and P, Q, R and S are the mid-points of the sides AB,BC,CD and DA respectively. Show that the quadrilateral PQRS is a rectangle ....#taylor solve ....

Answer»

Step-by-step EXPLANATION:

HOPE it helps

Mark as BRAINLIEST

Discussion

37.	Find any 5 rational number between 3/5 and 4/5
Answer» Step-by-step EXPLANATION: HOPE it HELPS MARK as BRAINLIEST

37.

Find any 5 rational number between 3/5 and 4/5

Answer»

Step-by-step EXPLANATION:

HOPE it HELPS

MARK as BRAINLIEST

Discussion

38.	238+569+456+897+1345
Answer» Answer: 3505 your answer Step-by-step EXPLANATION: MARK as BRAINLIST

38.

238+569+456+897+1345

Answer»

Answer:

3505 your answer

Step-by-step EXPLANATION:

MARK as BRAINLIST

Discussion

39.	Factorisation by using three factors 93
Answer» 93=3*31 It will be factorised that MUCH only.

39.

Factorisation by using three factors 93

Answer»

93=3*31

It will be factorised that MUCH only.

Discussion

40.	Sulution math 2.complite all
Answer» ANSWER: the answer of the FIRST PART is 5764801

40.

Sulution math 2.complite all

Answer»

ANSWER:

the answer of the FIRST PART is 5764801

Discussion

41.	A bag contains 5 red balls, 6 green balls and 4 white balls if one ball is draw out randamely find outprobability of(a) Red ball(b) not white ball(c) Blue ball
Answer» TOTAL no. of balls = 6+4+5=15 (a) P(red ball) = 5/15=1/3 (B)No. of non-white balls =5+6=11 P= 11/15 (C)No. of BLUE balls =0 P=0/15=0

41.

A bag contains 5 red balls, 6 green balls and 4 white balls if one ball is draw out randamely find outprobability of(a) Red ball(b) not white ball(c) Blue ball

Answer»

TOTAL no. of balls = 6+4+5=15

(a) P(red ball) = 5/15=1/3

(B)No. of non-white balls =5+6=11

P= 11/15

(C)No. of BLUE balls =0

P=0/15=0

Discussion

42.	Dateقیعللعالمحيطها لعمهاراSi -بھی
Answer» What is your QUESTION EXACTLY? If you ASK CLEARLY you will be ANSWERED.

42.

Dateقیعللعالمحيطها لعمهاراSi -بھی

Answer»

What is your QUESTION EXACTLY?

If you ASK CLEARLY you will be ANSWERED.

Discussion

43.	Value of A and B if root 2 + root 3 upon 3 root 2 minus 2 root 3 is equal to a + b root 6
Answer» Answer: a= 2 and b = 5\6 Step-by-step explanation: just RATIONALIZE the DENOMINATOR and SOLVE step by step.

43.

Value of A and B if root 2 + root 3 upon 3 root 2 minus 2 root 3 is equal to a + b root 6

Answer»

Answer: a= 2 and b = 5\6

Step-by-step explanation: just RATIONALIZE the DENOMINATOR and SOLVE step by step.

Discussion

44.	10; A और B किसी काम को 12 दिन में कर सकतेहैं। B और C उसी काम को 15 दिन में तथा Cऔर A उसी काम को 20 दिन में कर सकते हैं।\| A अकेले उसी काम को कितने दिन में पूराकरेगा?(a) 10 दिन (b) 20 दिन(c) 30 दिन (d) 40 दिन
Answer» ANSWER: answer is 20......................

44.

10; A और B किसी काम को 12 दिन में कर सकतेहैं। B और C उसी काम को 15 दिन में तथा Cऔर A उसी काम को 20 दिन में कर सकते हैं।| A अकेले उसी काम को कितने दिन में पूराकरेगा?(a) 10 दिन (b) 20 दिन(c) 30 दिन (d) 40 दिन

Answer»

ANSWER:

answer is 20......................

Discussion

45.	एक कमरे की लंबाई, चौड़ाई और ऊँचाई क्रमशः 5 m, 4m और 3 m हैं। 7.50 प्रति की दर से इस कमरे की दीवारों और छत पर सफेदी कराने का व्यय ज्ञात कीजिए।
Answer» Answer: कमरों की दीवारों और छतों पर सफेदी कराने का व्यय ₹ 555 है। Step-by-step EXPLANATION: दिया है : कमरे की लंबाई, (l) = 5m कमरे की चौड़ाई , (b) = 4m कमरे की ऊंचाई , (h) = 3m सफेदी करने के लिए कमरे का अभीष्ट क्षेत्रफल = चारों दीवारों का क्षेत्रफल + छत का क्षेत्रफल = 2(l + b)× h + (l × b) = 2(5+4)×3 + (5×4) = 2×9×3 + 20 = (54 + 20) = 74 मी² सफेदी करने के लिए कमरे का अभीष्ट क्षेत्रफल = 74 मी² 1 मी² की दर से सफेदी करने का व्यय = ₹7.50 74 मी² की दर से सफेदी करने का व्यय = ₹7.50 × 74 = ₹ 555 अतः, कमरों की दीवारों और छतों पर सफेदी कराने का व्यय ₹ 555 है। आशा है कि यह उत्तर आपकी मदद करेगा। इस पाठ से संबंधित कुछ और प्रश्न : 1.5 m लंबा, 1.25 m चौड़ा और 65 cm गहरा प्लास्टिक का एक डिब्बा बनाया जाना है। इसे ऊपर से खुला रखना है। प्लास्टिक शीट की मोटाई को नगण्य मानते हुए, निर्धारित कीजिए: (i) डिब्बा बनाने के लिए आवश्यक प्लास्टिक शीट का क्षेत्रफल। (ii) इस शीट का मूल्य, यदि $1m^2$ शीट का मूल्य रु 20 है। brainly.in/question/10330481 किसी आयताकार हॉल के फर्श का परिमाप 250 m है। यदि 10 प्रति $m2$ की दर से चारों दीवारों पर पेंट कराने की लागत रु 15000 है, तो इस हॉल की ऊँचाई ज्ञात कीजिए। [संकेत : चारों डिब्बों का क्षेत्रफल = पाश्र्व पृष्ठीय क्षेत्रफल ] brainly.in/question/10330762

45.

एक कमरे की लंबाई, चौड़ाई और ऊँचाई क्रमशः 5 m, 4m और 3 m हैं। 7.50 प्रति की दर से इस कमरे की दीवारों और छत पर सफेदी कराने का व्यय ज्ञात कीजिए।

Answer»

Answer:

कमरों की दीवारों और छतों पर सफेदी कराने का व्यय ₹ 555 है।

Step-by-step EXPLANATION:

दिया है :

कमरे की लंबाई, (l) = 5m

कमरे की चौड़ाई , (b) = 4m

कमरे की ऊंचाई , (h) = 3m

सफेदी करने के लिए कमरे का अभीष्ट क्षेत्रफल = चारों दीवारों का क्षेत्रफल + छत का क्षेत्रफल

= 2(l + b)× h + (l × b)

= 2(5+4)×3 + (5×4)

= 2×9×3 + 20

= (54 + 20)

= 74 मी²

सफेदी करने के लिए कमरे का अभीष्ट क्षेत्रफल = 74 मी²

1 मी² की दर से सफेदी करने का व्यय = ₹7.50

74 मी² की दर से सफेदी करने का व्यय = ₹7.50 × 74 = ₹ 555

अतः, कमरों की दीवारों और छतों पर सफेदी कराने का व्यय ₹ 555 है।

आशा है कि यह उत्तर आपकी मदद करेगा।

इस पाठ से संबंधित कुछ और प्रश्न :

1.5 m लंबा, 1.25 m चौड़ा और 65 cm गहरा प्लास्टिक का एक डिब्बा बनाया जाना है। इसे ऊपर से खुला रखना है। प्लास्टिक शीट की मोटाई को नगण्य मानते हुए, निर्धारित कीजिए:

(i) डिब्बा बनाने के लिए आवश्यक प्लास्टिक शीट का क्षेत्रफल।

(ii) इस शीट का मूल्य, यदि $1m^2$ शीट का मूल्य रु 20 है।

brainly.in/question/10330481

किसी आयताकार हॉल के फर्श का परिमाप 250 m है। यदि 10 प्रति $m2$ की दर से चारों दीवारों पर पेंट कराने की लागत रु 15000 है, तो इस हॉल की ऊँचाई ज्ञात कीजिए।

[संकेत : चारों डिब्बों का क्षेत्रफल = पाश्र्व पृष्ठीय क्षेत्रफल ]

brainly.in/question/10330762

Discussion

46.	(1+ tan 33) (1 + tan (12)(1 + tan 18') (1 + tans 27)
Answer» ANSWER: $\tan(90 - 57) \tan(90 - 78) \tan(90 - 72) \tan(90 - 63)$ $answer \: is \: 1$

46.

(1+ tan 33) (1 + tan (12)(1 + tan 18') (1 + tans 27)

Answer»

ANSWER:

$\tan(90 - 57) \tan(90 - 78) \tan(90 - 72) \tan(90 - 63)$

$answer \: is \: 1$

Discussion

47.	Evaluate using number line(1)4-(-2)(2) 2 more than - 7
Answer» 4-(-2) = 6 and 2 more than -7 is -5 I HOPE it help you otherwise report it....

47.

Evaluate using number line(1)4-(-2)(2) 2 more than - 7

Answer»

4-(-2) = 6

and 2 more than -7 is -5

I HOPE it help you

otherwise report it....

Discussion

48.	Linear equation.......
Answer» ANSWER: $for \: x = 0 \\ y = (a + b) ....(1)\\ and \: for \: y = 0 \\ x = (a + b).....(2) \\ substitute \: (1) \: and \: (2) \: in \: given \: equation \: of \: lhs \: we \: will \: get \\ a(a + b) - b(a + b) = a {}^{2} + ab - ab - b {}^{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \: a {}^{2} - b {}^{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = rhs \: proved$

48.

Linear equation.......

Answer»

ANSWER:

$for \: x = 0 \\ y = (a + b) ....(1)\\ and \: for \: y = 0 \\ x = (a + b).....(2) \\ substitute \: (1) \: and \: (2) \: in \: given \: equation \: of \: lhs \: we \: will \: get \\ a(a + b) - b(a + b) = a {}^{2} + ab - ab - b {}^{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \: a {}^{2} - b {}^{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = rhs \: proved$

Discussion

49.	Question 1:- Express into standard form?(a) :- -42/78 (b) :- -28/63 Question 2:- which is greater? (a) :- 6/7 or -5/8 (b) :- -8/11 or -5/6 .....answer fast. ...it's very urgent ....☺ ☺
Answer» Answer: second part -5/6 Step-by-step explanation: because when SYMBOL of - is coming with SMALLER no it is only BIG no OKKK

49.

Question 1:- Express into standard form?(a) :- -42/78 (b) :- -28/63 Question 2:- which is greater? (a) :- 6/7 or -5/8 (b) :- -8/11 or -5/6 .....answer fast. ...it's very urgent ....☺ ☺

Answer»

Answer:

second part -5/6

Step-by-step explanation:

because when SYMBOL of - is coming with SMALLER no it is only BIG no OKKK

Discussion

50.	The largest natural number which exactly divides the product of any four consecutive natural numbers is(A) 120(B) 24(C) 12(D) 6
Answer» ANSWER: the answer is 24 Step-by-step EXPLANATION: SUPPOSE we take 1,2,3,4 and get the PRODUCT which is 24 which is equal to my answer

50.

The largest natural number which exactly divides the product of any four consecutive natural numbers is(A) 120(B) 24(C) 12(D) 6

Answer»

ANSWER:

the answer is 24

Step-by-step EXPLANATION:

SUPPOSE we take 1,2,3,4 and get the PRODUCT which is 24 which is equal to my answer

Discussion

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