332354 + Interview Questions in Secondary School in Math

1.	Find a point on x-axis which is equidistant from (–3, 4) and (7, 6). answer needed urgently, thanks :]
Answer» ong>Answer: What point on the X-axis is EQUIDISTANT from (7, 6) and (-3, 4) ? ⇒20x=60⇒x=3. ∴ the required point is P(3, 0). Step by step SOLUTION by experts to help you in DOUBT CLEARANCE & scoring excellent MARKS in exams.

1.

Find a point on x-axis which is equidistant from (–3, 4) and (7, 6). answer needed urgently, thanks :]

Answer»

ong>Answer:

What point on the X-axis is EQUIDISTANT from (7, 6) and (-3, 4) ? ⇒20x=60⇒x=3. ∴ the required point is P(3, 0). Step by step SOLUTION by experts to help you in DOUBT CLEARANCE & scoring excellent MARKS in exams.

Discussion

2.	A boy standing between two buildings of equal height. The boy and he buildings are in astraight line. The boy sees the top of thosebuildings at an elevationof 45 degree and 30 degree. The nearest building is 20 maway from him.a) Draw rough figureb Find the height of the buildings & distance between the buildings
Answer» ong>Answer: ASSUME a building be h. In Δ ABC, ACB = 30^0 tan30^0 = AB/BC = h/48 = h/48 1/√(3) = h/48 h = 48√(3)/3 = 16√(2) m Then, HEIGHT of building is 16√(2) ...

2.

A boy standing between two buildings of equal height. The boy and he buildings are in astraight line. The boy sees the top of thosebuildings at an elevationof 45 degree and 30 degree. The nearest building is 20 maway from him.a) Draw rough figureb Find the height of the buildings & distance between the buildings

Answer»

ong>Answer:

ASSUME a building be h. In Δ ABC, ACB = 30^0 tan30^0 = AB/BC = h/48 = h/48 1/√(3) = h/48 h = 48√(3)/3 = 16√(2) m Then, HEIGHT of building is 16√(2) ...

Discussion

3.	Ev the father is a great day and a great
Answer» ONG>Step-by-step explanation: The answer is (b) 4.02181 because the VOLUME of a CYLINDER is 2πrh Given, height=20 cm radius=8 cm volume of cylinder=2×22/7×8×20 =4.02181

3.

Ev the father is a great day and a great

Answer» ONG>Step-by-step explanation:

The answer is (b) 4.02181 because the VOLUME of a CYLINDER is 2πrh

Given,

height=20 cm

radius=8 cm

volume of cylinder=2×22/7×8×20

=4.02181

Discussion

4.	What is agriculturesab bhul gay hume :(
Answer» ong>ANSWER: Agriculture is the SCIENCE, art and practice of cultivating plants and livestock. Agriculture was the KEY development in the rise of sedentary human CIVILIZATION, whereby FARMING of domesticated species created food surpluses that enabled people to live in cities.

4.

What is agriculturesab bhul gay hume :(

Answer»

ong>ANSWER:

Agriculture is the SCIENCE, art and practice of cultivating plants and livestock. Agriculture was the KEY development in the rise of sedentary human CIVILIZATION, whereby FARMING of domesticated species created food surpluses that enabled people to live in cities.

Discussion

5.	Express 0.0987^- asa vulgar fraction in itd lowest form
Answer» ong>ANSWER: sorry bro just NEEDED points

5.

Express 0.0987^- asa vulgar fraction in itd lowest form

Answer»

ong>ANSWER:

sorry bro just NEEDED points

Discussion

6.	At a farm, the ratio of the number of hens to the number of ducks is 3:5. There are 125 ducks at the farm. How many hens are there on the farm?
Answer» ong>Answer: I hope it HELPS you. *PLEASE* *LIKE* *IT AND MARK IT AS BRAINLIEST*.

6.

At a farm, the ratio of the number of hens to the number of ducks is 3:5. There are 125 ducks at the farm. How many hens are there on the farm?

Answer»

ong>Answer:

I hope it HELPS you.

PLEASE LIKE IT AND MARK IT AS BRAINLIEST.

Discussion

7.	A container shaped like a right circular cylinder having diameter 12 cm and height 15 cm is full of ice cream. The ice cream is to be filled into cones of height 12 cm and diameter 6 cm, having a hemispherical shape on the top. (i)The total height of the ice cream cone is(a) 18cm(b) 15cm(c) 12cm(d) 24cm1. (ii)What would be the volume of the right circular cylinder? (a)90πcm3 (b)540πcm3 (c)576πcm3 (d)480πcm3 (iii)The surface area of the cylinder filled with ice cream is (a) 6480πcm2 (b)3240πcm2 (c)252πcm2 (d)450πcm2 (iv)What would be the volume of the ice-cream cone? (a)648πcm3 (b)88πcm3 (c)48πcm3 (d)54πcm3
Answer» ong>Step-by-step EXPLANATION: I DONT know PLEASE SORRY

7.

A container shaped like a right circular cylinder having diameter 12 cm and height 15 cm is full of ice cream. The ice cream is to be filled into cones of height 12 cm and diameter 6 cm, having a hemispherical shape on the top. (i)The total height of the ice cream cone is(a) 18cm(b) 15cm(c) 12cm(d) 24cm1. (ii)What would be the volume of the right circular cylinder? (a)90πcm3 (b)540πcm3 (c)576πcm3 (d)480πcm3 (iii)The surface area of the cylinder filled with ice cream is (a) 6480πcm2 (b)3240πcm2 (c)252πcm2 (d)450πcm2 (iv)What would be the volume of the ice-cream cone? (a)648πcm3 (b)88πcm3 (c)48πcm3 (d)54πcm3

Answer»

ong>Step-by-step EXPLANATION:

I DONT know

PLEASE SORRY

Discussion

8.	Please answer the questions I will mark as Brainlist immediately
Answer» ONG>Answer: REFER TO THE ATTACHMENT HOPE IT IS BRAINY PLS MARK MY ANSWER BRAINLIEST AND LIKE MY ANSWER

8.

Please answer the questions I will mark as Brainlist immediately

Answer» ONG>Answer:

REFER TO THE ATTACHMENT

HOPE IT IS BRAINY PLS MARK MY ANSWER BRAINLIEST AND LIKE MY ANSWER

Discussion

9.	All this square using all the numbers from 46 to 54. (Rule - the total of ench lines 150 52the front view Top view and side view
Answer» ONG>ANSWER: gkkdgkdgjdgjdjgdgsfefheutetusefefhsufd

Discussion

10.	Solve the following eq//2x+3y=-4 x - 5y=12x+3y = -4 -x - 5y = 11x= 11+54
Answer» ong>Answer: YA kya Likha Ha keep SMILING BYE

10.

Solve the following eq//2x+3y=-4 x - 5y=12x+3y = -4 -x - 5y = 11x= 11+54

Answer»

ong>Answer:

YA kya Likha Ha

keep SMILING BYE

Discussion

11.	Hi guys what is the answer of 99998888-1008990 ?
Answer» ONG>Answer: 99998888 - 1008990 =98989898

11.

Hi guys what is the answer of 99998888-1008990 ?

Answer» ONG>Answer:

99998888

- 1008990

=98989898

Discussion

12.	Verify the identity a3 + b3 = (a + b) (a2 - ab + b2 )please answer in LHS= RHS formatplease
Answer» ONG>ANSWER: PLZ mark me as brilliant answer

Discussion

13.	Bar graph is also called as
Answer» ong>Step-by-step explanation: A bar CHART or bar graph is a chart or graph that presents categorical data with rectangular bars with heights or lengths PROPORTIONAL to the values that they REPRESENT. The bars can be plotted vertically or horizontally. A vertical bar chart is sometimes CALLED a column chart. hope this will help you.. please mark it as the brainliest..

13.

Bar graph is also called as

Answer»

ong>Step-by-step explanation:

A bar CHART or bar graph is a chart or graph that presents categorical data with rectangular bars with heights or lengths PROPORTIONAL to the values that they REPRESENT. The bars can be plotted vertically or horizontally. A vertical bar chart is sometimes CALLED a column chart.

hope this will help you..

please mark it as the brainliest..

Discussion

14.	In triangle ABC,BCis equal to 10.AB parallel to BC.also AB is equal to 5cm. Find the area of triangle ABC
Answer» ong>ANSWER: you are answer in triangle ABC,BC

14.

In triangle ABC,BCis equal to 10.AB parallel to BC.also AB is equal to 5cm. Find the area of triangle ABC

Answer»

ong>ANSWER:

you are answer

in triangle ABC,BC

Discussion

15.	(x+5) + (х-28) find find answer
Answer» WER : ) 2x-23 $\sf{ \red{ɧơ℘ɛ \: ɬɧıʂ \: ɧɛƖ℘ʂ \: ყơų}}$

15.

(x+5) + (х-28) find find answer

Answer» WER : )

2x-23

$\sf{ \red{ɧơ℘ɛ \: ɬɧıʂ \: ɧɛƖ℘ʂ \: ყơų}}$

Discussion

16.	3) Given n students in the class like football,what may 2n show?
Answer» ong>Answer: 2n represents twice the number of STUDENTS who like FOOTBALL. n/2 represents HALF the number of students who like football. It may represent the number of students who like CRICKET, or BASKETBALL etc.

16.

3) Given n students in the class like football,what may 2n show?

Answer»

ong>Answer:

2n represents twice the number of STUDENTS who like FOOTBALL. n/2 represents HALF the number of students who like football. It may represent the number of students who like CRICKET, or BASKETBALL etc.

Discussion

17.	20 1/3-(17/6÷11 1/3)+(9÷2 1/4)*4
Answer» /3-(17/6÷11 1/3)+(9÷2 1/4)*4=10.393

17.

20 1/3-(17/6÷11 1/3)+(9÷2 1/4)*4

Answer»

/3-(17/6÷11 1/3)+(9÷2 1/4)*4=10.393

Discussion

18.	Bill buys and sells laptops. Last month Bill bought 50 laptops. He paid £400 for each laptop. He sold 40 of these laptops at a profit of 30% on each laptop and 10 of these laptops at a profit of 15% on each laptop. Bill’s target last month was to sell all 50 laptops for a total of at least £25 000. Did Bill reach this target?Bill buys and sells laptops. Last month Bill bought 50 laptops. He paid £400 for each laptop. He sold 40 of these laptops at a profit of 30% on each laptop and 10 of these laptops at a profit of 15% on each laptop. Bill’s target last month was to sell all 50 laptops for a total of at least £25 000. Did Bill reach this target?Bill buys and sells laptops. Last month Bill bought 50 laptops. He paid £400 for each laptop. He sold 40 of these laptops at a profit of 30% on each laptop and 10 of these laptops at a profit of 15% on each laptop. Bill’s target last month was to sell all 50 laptops for a total of at least £25 000. Did Bill reach this target?
Answer» ONG>ANSWER: HOPE it is HELPFUL for you

18.

Bill buys and sells laptops. Last month Bill bought 50 laptops. He paid £400 for each laptop. He sold 40 of these laptops at a profit of 30% on each laptop and 10 of these laptops at a profit of 15% on each laptop. Bill’s target last month was to sell all 50 laptops for a total of at least £25 000. Did Bill reach this target?Bill buys and sells laptops. Last month Bill bought 50 laptops. He paid £400 for each laptop. He sold 40 of these laptops at a profit of 30% on each laptop and 10 of these laptops at a profit of 15% on each laptop. Bill’s target last month was to sell all 50 laptops for a total of at least £25 000. Did Bill reach this target?Bill buys and sells laptops. Last month Bill bought 50 laptops. He paid £400 for each laptop. He sold 40 of these laptops at a profit of 30% on each laptop and 10 of these laptops at a profit of 15% on each laptop. Bill’s target last month was to sell all 50 laptops for a total of at least £25 000. Did Bill reach this target?

Answer» ONG>ANSWER:

HOPE it is HELPFUL for you

Discussion

19.	Write opposite ofthis : loss of799
Answer» ong>ANSWER: Profit of 799 Step-by-step EXPLANATION: MARK me BRAINLIEST

19.

Write opposite ofthis : loss of799

Answer»

ong>ANSWER:

Profit of 799

Step-by-step EXPLANATION:

MARK me BRAINLIEST

Discussion

20.	. Show that :13-2√2 - 12√2-√7 + 1√7-√6 - 1 √6-√5 + 1√5-2=5
Answer» ONG>Answer: 1 ✓ 2 Step-by-step EXPLANATION: Please MARK as braniest

20.

. Show that :13-2√2 - 12√2-√7 + 1√7-√6 - 1 √6-√5 + 1√5-2=5

Answer» ONG>Answer:

1 ✓ 2

Step-by-step EXPLANATION:

Please MARK as braniest

Discussion

21.	water is flowing at the rate of 15km/h through a pipe of diameter 14cm into a cuboidal pond which is 50m long and 44m wide by what level water will rise in 2/3 hours of time.
Answer» ONG>ANSWER: aaji land lelo MERA ok cjvfy fuhcr

21.

water is flowing at the rate of 15km/h through a pipe of diameter 14cm into a cuboidal pond which is 50m long and 44m wide by what level water will rise in 2/3 hours of time.

Answer» ONG>ANSWER:

aaji land lelo MERA ok

cjvfy

fuhcr

Discussion

22.	solve this equation for 20 points.
Answer» ONG>ANSWER: SORRY IDK the answer BYE

Discussion

23.	Find the 19th term of A.P-11,15,19
Answer» INK this Is HOPE full thank you please COMMENT and LILE it

23.

Find the 19th term of A.P-11,15,19

Answer» INK this Is HOPE full thank you please COMMENT and LILE it

Discussion

24.	Please answer the question I will mark as Brainlist first
Answer» ONG>ANSWER: HARSHLY against the law of MOSES is it OK Step-by-step explanation: sure kg W you 6+35=41

24.

Please answer the question I will mark as Brainlist first

Answer» ONG>ANSWER:

HARSHLY against the law of MOSES is it OK

Step-by-step explanation:

sure kg W you 6+35=41

Discussion

25.	Choose Yes or No to tell whether each value of p is a solution for this inequality. 10p – 8 ≥ 12
Answer» ONG>ANSWER: yes Step-by-step EXPLANATION: HERE IS YOUR ANSWER. I HOPE IT MAY HELP YOU. PLEASE MARK ME AS A BRAINLIEST. THANK YOU

25.

Choose Yes or No to tell whether each value of p is a solution for this inequality. 10p – 8 ≥ 12

Answer» ONG>ANSWER:

yes

Step-by-step EXPLANATION:

HERE IS YOUR ANSWER.

I HOPE IT MAY HELP YOU.

PLEASE MARK ME AS A BRAINLIEST.

THANK YOU

Discussion

26.	A person of mass 40kg walks on a road He exerts a force of 40N and walks a distance of 10m. What is the work done by the force of gravity
Answer» ong>ANSWER: hope you like it! it is a PICTURE

26.

A person of mass 40kg walks on a road He exerts a force of 40N and walks a distance of 10m. What is the work done by the force of gravity

Answer»

ong>ANSWER:

hope you like it! it is a PICTURE

Discussion

27.	3.3. Evaluate each of the following: sin [47°/cos43°]² + [cos43°/sin47°]²
Answer» ong>Answer: 2 (SIN 47/sin47)^2+(cos 43/cos 43) =1+1= 2. *Hope it HELPS. Like and follow if it helps* ^_^

27.

3.3. Evaluate each of the following: sin [47°/cos43°]² + [cos43°/sin47°]²

Answer»

ong>Answer:

2

(SIN 47/sin47)^2+(cos 43/cos 43)

=1+1= 2.

Hope it HELPS. Like and follow if it helps ^_^

Discussion

28.	Prove thatsin²A - cos²A/Cos²A×sin²A =Sec²A-cos²A
Answer» ong>ANSWER: see ANS in the form of image.

28.

Prove thatsin²A - cos²A/Cos²A×sin²A =Sec²A-cos²A

Answer»

ong>ANSWER:

see ANS in the form of image.

Discussion

29.	Using euler method fordy/dx=y, y (0)=1 the volue of y (0. 1)
Answer» ONG>ANSWER: HOPE THIS HELPS YOU MARK AS BRAINLIST

29.

Using euler method fordy/dx=y, y (0)=1 the volue of y (0. 1)

Answer» ONG>ANSWER:

HOPE THIS HELPS YOU

MARK AS BRAINLIST

Discussion

30.	Pliz say how to find it snd photo
Answer» ong>ANSWER: SORRY I'm not understanding the QUESTION

30.

Pliz say how to find it snd photo

Answer»

ong>ANSWER:

SORRY I'm not understanding the QUESTION

Discussion

31.	(y+1)p+(x+1)q=z by the solution of partial differential equation
Answer» ong>ANSWER: HA bahut km CHLATI ho GAYE shuru karwa a while

31.

(y+1)p+(x+1)q=z by the solution of partial differential equation

Answer»

ong>ANSWER:

HA bahut km CHLATI ho GAYE shuru karwa a while

Discussion

32.	X+y=8 and 2x-3y=1 solve the cross multiplication method
Answer» ALIGN="ABSMIDDLE" alt="\huge\colorbox{White}{Refer to the attachment⤴️⤴️)}" class="latex-formula" id="TexFormula1" src="https://tex.z-dn.net/?f=%5Chuge%5Ccolorbox%7BWhite%7D%7BRefer%20to%20the%20attachment%E2%A4%B4%EF%B8%8F%E2%A4%B4%EF%B8%8F%29%7D" TITLE="\huge\colorbox{White}{Refer to the attachment⤴️⤴️)}">

Discussion

33.	PAGE NO : DATE:आकलीमध्ये O हा वर्तुळाचा केंद्रआहे. जर ∆OAB= 40°आणि c हावलकावरील बिंदु हे तर ∆ACB= किती
Answer» ONG>Step-by-step EXPLANATION: Step-by-step explanation: ANSWER: $\huge{\textbf{\textsf{{\color{navy}{an}{\purple{sw}}{\pink{er}}{\color{pink}:)}}}}}$ Explanation: NHI aata

33.

PAGE NO : DATE:आकलीमध्ये O हा वर्तुळाचा केंद्रआहे. जर ∆OAB= 40°आणि c हावलकावरील बिंदु हे तर ∆ACB= किती

Answer» ONG>Step-by-step EXPLANATION:

Step-by-step explanation:

ANSWER:

$\huge{\textbf{\textsf{{\color{navy}{an}{\purple{sw}}{\pink{er}}{\color{pink}:)}}}}}$

Explanation:

NHI aata

Discussion

34.	Page No Datetillintheblanksproperly :BA (ALMNd=1BA (AOMN)ㅁX Х
Answer» ONG>I *think* *your* *question* is *wrong* or *INCOMPLETE. Plz* *check* it or *send* *your* *question* *picture. SORRY* *for* *spam* *but* it is *your* *FAULT* *that* *you* *give* me *wrong* *question*.

Discussion

35.	the square root of a number is the number itself. The number cannot be a)1 b)0 c)0.1 d) none of these
Answer» ong>Answer: (a) 1 Step-by-step EXPLANATION: Because, 1² = 1 and √1 = 1 It cannot be zero as, 0² = 0 But √0 = ∞ So answer is 1

35.

the square root of a number is the number itself. The number cannot be a)1 b)0 c)0.1 d) none of these

Answer»

ong>Answer:

(a) 1

Step-by-step EXPLANATION:

Because,

1² = 1

and

√1 = 1

It cannot be zero as,

0² = 0

But

√0 = ∞

So answer is 1

Discussion

36.	(vi) cos ax differentiation
Answer» ong>ANSWER: I can't UNDERSTAND Step-by-step explanation: please mark as brainliest

36.

(vi) cos ax differentiation

Answer»

ong>ANSWER:

I can't UNDERSTAND

Step-by-step explanation:

please mark as brainliest

Discussion

37.	3. Examine, whether the following numbers are rational or irrational: (i)√7(ii) √4(iii) 2+√3(iv) √3 +√2(v) √3+√5(vi)(√2-2)²(vii)(2-√2)(2+√2)(Viii) (√2+√3)²(ix)√5-2(x)√225(xi)√23(xii)0.3796(xiii)7.478478(xiv)1.101001000100001...plz answer fast
Answer» ONG>ANSWER: rational rational irrational irrational irraltional rational irrrational Step-by-step EXPLANATION: MAKE me branist

37.

3. Examine, whether the following numbers are rational or irrational: (i)√7(ii) √4(iii) 2+√3(iv) √3 +√2(v) √3+√5(vi)(√2-2)²(vii)(2-√2)(2+√2)(Viii) (√2+√3)²(ix)√5-2(x)√225(xi)√23(xii)0.3796(xiii)7.478478(xiv)1.101001000100001...plz answer fast

Answer» ONG>ANSWER:

rational

irrational

irraltional

rational

irrrational

Step-by-step EXPLANATION:

MAKE me branist

Discussion

38.	What is the magnitudeThe vector 2i-3 j+3k
Answer» ong>ANSWER: 2 3 is the right answer ok

38.

What is the magnitudeThe vector 2i-3 j+3k

Answer»

ong>ANSWER:

2 3 is the right answer ok

Discussion

39.	स्वतंत्र या शब्दाचा विरुद्धार्थी शब्द कोणता?
Answer» पारतंत्र्य this is ANWER

39.

स्वतंत्र या शब्दाचा विरुद्धार्थी शब्द कोणता?

Answer»

पारतंत्र्य this is ANWER

Discussion

40.	Any point on the x-axis and y-axis is of the form ______&_____respectively
Answer» ) and (0,y) Step-by-step EXPLANATION: on x-axis the POINT is in the FORM of (x,0) on y-axis the point is in the form of (0,y)

40.

Any point on the x-axis and y-axis is of the form __&_respectively

Answer»

) and (0,y)

Step-by-step EXPLANATION:

on x-axis the POINT is in the FORM of (x,0)

on y-axis the point is in the form of (0,y)

Discussion

41.	Find the square root of 289238049 with the method of long division
Answer» ONG>ANSWER: 170.07 is a answer it is LONG DIVISION but I did it

Discussion

42.	If a/b=7/3 then find 5a+3b/5a-3b
Answer» ONG>Step-by-step EXPLANATION: a/b=7/3 a:b=7:3 a=7 b=3 5a+3b/5a-3b =5×7+3×3/5×7-3×3 =44/26 22/13

42.

If a/b=7/3 then find 5a+3b/5a-3b

Answer» ONG>Step-by-step EXPLANATION:

a/b=7/3

a:b=7:3

a=7

b=3

5a+3b/5a-3b

=5×7+3×3/5×7-3×3

=44/26

22/13

Discussion

43.	Mrs. Jain is 27 years older than her daughter nilu.After 8 years she will be twice as old as Nilu.Find their present ages?
Answer» ong>Given : MRS. Jain is 27 years older than her daughter nilu.After 8 years she will be twice as old as Nilu. To Find : Their present ages. ⠀⠀⠀⠀⠀__________________________ ❍Let the present AGE of Nilu be "x" years. Therefore,the present age of Nilu's mother = (x + 27) years. $\\$ ${\underline{\boldsymbol{\pink{According \ to \ the \ question \ :}}}}$ So,after 8 years, Nilu's age = (x + 8),and Mrs Jain's age = (x + 27 + 8) = (x + 35)years. $:\implies{ \sf{\pink{x + 35 = 2(x + 8)}}}$ $\\$ Expanding the brackets,We get $:\implies{ \sf{\pink{x + 35 = 2x + 16}}}$ $\\$ Transporing x to RHS and 16 to LHS,We get $:\implies{ \sf{\pink{35-16=2x-x}}}$ $\\$ $:\implies{ \sf{\pink{x=19}}}$ $\\$ So,The present age of Nilu = x = 19 years.And the present age of Nilu's mother that is Mrs Jain = x + 27 = 19 + 27 = 46 years.

43.

Mrs. Jain is 27 years older than her daughter nilu.After 8 years she will be twice as old as Nilu.Find their present ages?

Answer»

ong>Given : MRS. Jain is 27 years older than her daughter nilu.After 8 years she will be twice as old as Nilu.

To Find : Their present ages.

⠀⠀⠀⠀⠀__________________________

❍Let the present AGE of Nilu be "x" years.

Therefore,the present age of Nilu's mother = (x + 27) years.

$\\$

${\underline{\boldsymbol{\pink{According \ to \ the \ question \ :}}}}$

So,after 8 years,

Nilu's age = (x + 8),and Mrs Jain's age = (x + 27 + 8) = (x + 35)years.

$:\implies{ \sf{\pink{x + 35 = 2(x + 8)}}}$

$\\$

Expanding the brackets,We get

$:\implies{ \sf{\pink{x + 35 = 2x + 16}}}$

$\\$

Transporing x to RHS and 16 to LHS,We get

$:\implies{ \sf{\pink{35-16=2x-x}}}$

$\\$

$:\implies{ \sf{\pink{x=19}}}$

$\\$

So,The present age of Nilu = x = 19 years.And the present age of Nilu's mother that is Mrs Jain = x + 27 = 19 + 27 = 46 years.

Discussion

44.	Length of the line segment OP? 2. C is the centre of a circle of radius 5.6 cm. A and B are two points on the circle such that A.C and B are collinear. Find the distance between A and B.please draw and tell
Answer» ONG>Answer: HOPE it will HELP you to SOLVE

Discussion

45.	Find the solution of y + 18 = 30.
Answer» ONG>ANSWER: y=12 Step-by-step EXPLANATION: y+18=30 y=30-18 y=12

45.

Find the solution of y + 18 = 30.

Answer» ONG>ANSWER:

y=12

Step-by-step EXPLANATION:

y+18=30

y=30-18

y=12

Discussion

46.	The graph of the polynomial x2 + x + 1 intersects X – axis at ……….. point/points
Answer» QUESTION's ANSWER US two/2.

Discussion

47.	गणिती भाषेत हूकचा नियम असा सांगता येईल
Answer» ONG>ANSWER: METTING I'd:9614011369 pswd:12345 for g.i.r.l.s

47.

गणिती भाषेत हूकचा नियम असा सांगता येईल

Answer» ONG>ANSWER:

METTING I'd:9614011369 pswd:12345 for g.i.r.l.s

Discussion

48.	Rationalizing the denominator of 11+2√+3√=
Answer» ONG>ANSWER: jdakhcs2mwlitdwliyr2oryeofy30ufepyfeofue0ufepuf2l Step-by-step EXPLANATION: kcdmskxhexliwgziwgzlahslqgiwyewhdjwdgwod

48.

Rationalizing the denominator of 11+2√+3√=

Answer» ONG>ANSWER:

jdakhcs2mwlitdwliyr2oryeofy30ufepyfeofue0ufepuf2l

Step-by-step EXPLANATION:

kcdmskxhexliwgziwgzlahslqgiwyewhdjwdgwod

Discussion

49.	Factorise 11227 by representing this number in 2 + + form.
Answer» ong>Step-by-step explanation: Factorise 11227 by representing this number in ax2+bx+c form. Step by step solution by experts to help you in doubt clearance & scoring EXCELLENT marks in EXAMS. The ANGLE of elevation of cloud from a point 60 m above a lake is 30∘ and the angle of depression of the reflection of cloud in the lake is 60∘ .

49.

Factorise 11227 by representing this number in 2 + + form.

Answer»

ong>Step-by-step explanation:

Factorise 11227 by representing this number in ax2+bx+c form. Step by step solution by experts to help you in doubt clearance & scoring EXCELLENT marks in EXAMS. The ANGLE of elevation of cloud from a point 60 m above a lake is 30∘ and the angle of depression of the reflection of cloud in the lake is 60∘ .

Discussion

50.	Question : 1. A tap fills tank in 3 hours and another tap can fI'll it in 6 hours. If both taps are opened together, how long it take for the tank to be filled.2. Tap 'A' fills the tank in 8 hours and another tap 'B' empties it in 12 hours. If the tank is empty and both the tanks are opened together, how long will it take to fill the tank?3. A pipe can fill a cistern in 3 hours. Due to a leak at the bottom it is filled in 4 hours. When the Cistern is full. in how much time will it be emptied by the leak.
Answer» ong>Solution : 1 $\sf \: Time \: taken \: by \: a \: tap \: to \: fill \: a \: tank \: = \: 3 \: hours.$ $\sf \: So, \: in \: 1 \: hours \: it \: fills \: \: \dfrac{1}{3} \: \: of \: the \: tank.$ $\sf \: Time \: taken \: by \: the \: second \: tap \: to \: fill \: the \: tank \: = \: 6 \: hours.$ $\sf \: So, \: in \: 1 \: hours \: it \: fills \: \: \dfrac{1}{6} \: \: of \: the \: tank.$ When both are OPENED TOGETHER $\sf \: Work \: done \: in \: 1 \: hours \: = \: \dfrac{1}{3} \: + \: \dfrac{1}{6} \: = \: \dfrac{<klux>2</klux> \: + 1}{6} \: = \: \dfrac{1}{2}$ $\sf \: Thus, \: Time \: taken \: by \: both \: the \: taps \: to \: fill \: the \: tank \: = \: 1 \: \div \: \dfrac{1}{2} \: = \: 2 \: hours.$ _____________________________________ Solution : 2 $\sf \: Time \: taken \: by \: tap \: A \: to \: fill \: the \: tank \: = 8 \: hours.$ $\sf \: Work \: done \: by \: tap \: A \: in \: 1 \: hours \: = \: \dfrac{1}{8}$ $\sf \: Time \: taken \: by \: tap \: B \: to \: empty \: the \: tank \: = \: 12 \: hours.$ $\sf \: Work \: done \: by \: tap \: B \: in \: one \: hours \: = \: - \: \dfrac{1}{12}$ $\sf \: Work \: done \: by \: tap \: (A + B) \: :$ $\sf \longrightarrow \: \dfrac{1}{8} \: - \: \dfrac{1}{12} \: = \: \dfrac{3 \: - \: 2}{24} \: = \: \dfrac{1}{24}$ $\sf \: Thus, \: Time \: taken \: by \: tap \: A \: and \: B \: to \: fill \: the \: tank \: = \:1 \: + \: \dfrac{1}{24} \: = \: 24 \: hours.$ _____________________________________ Solution : 3 $\sf \: When \: there \: is \: no \: leakage$ $\sf \: Time \: taken \: by \: pipe \: to \: fill \: the \: cistern \: = \: 3 \: hours.$ $\sf \: Work \: done \: by \: pipe \: in \: 1 \: hours \: = \: \dfrac{1}{3}$ $\sf \: When \: there \: is \: leakage$ $\sf \: Time \: taken \: by \: pipe \: to \: fill \: the \: tank \: = \: 4 \: hours.$ $\sf \: Work \: done \: by \: pipe \: in \: 1 \: hours \: = \: - \: \dfrac{1}{4}$ $\sf \: Work \: done \: by \: the \: leak \: in \: 1 \: hour \: :$ $\sf \: \dfrac{1}{3} \: - \: \dfrac{1}{4} \: = \: \dfrac{4 \: - \: 3}{12} \: = \: \dfrac{1}{12}$ $\sf \: Hence \: the \: Cistern \: will \: be \: emptied \: by \: the \: leakage \: in \: 12 \: hours.$

50.

Question : 1. A tap fills tank in 3 hours and another tap can fI'll it in 6 hours. If both taps are opened together, how long it take for the tank to be filled.2. Tap 'A' fills the tank in 8 hours and another tap 'B' empties it in 12 hours. If the tank is empty and both the tanks are opened together, how long will it take to fill the tank?3. A pipe can fill a cistern in 3 hours. Due to a leak at the bottom it is filled in 4 hours. When the Cistern is full. in how much time will it be emptied by the leak.

Answer»

ong>Solution : 1

$\sf \: Time \: taken \: by \: a \: tap \: to \: fill \: a \: tank \: = \: 3 \: hours.$

$\sf \: So, \: in \: 1 \: hours \: it \: fills \: \: \dfrac{1}{3} \: \: of \: the \: tank.$

$\sf \: Time \: taken \: by \: the \: second \: tap \: to \: fill \: the \: tank \: = \: 6 \: hours.$

$\sf \: So, \: in \: 1 \: hours \: it \: fills \: \: \dfrac{1}{6} \: \: of \: the \: tank.$

When both are OPENED TOGETHER

$\sf \: Work \: done \: in \: 1 \: hours \: = \: \dfrac{1}{3} \: + \: \dfrac{1}{6} \: = \: \dfrac{<klux>2</klux> \: + 1}{6} \: = \: \dfrac{1}{2}$

$\sf \: Thus, \: Time \: taken \: by \: both \: the \: taps \: to \: fill \: the \: tank \: = \: 1 \: \div \: \dfrac{1}{2} \: = \: 2 \: hours.$

_____________________________________

Solution : 2

$\sf \: Time \: taken \: by \: tap \: A \: to \: fill \: the \: tank \: = 8 \: hours.$

$\sf \: Work \: done \: by \: tap \: A \: in \: 1 \: hours \: = \: \dfrac{1}{8}$

$\sf \: Time \: taken \: by \: tap \: B \: to \: empty \: the \: tank \: = \: 12 \: hours.$

$\sf \: Work \: done \: by \: tap \: B \: in \: one \: hours \: = \: - \: \dfrac{1}{12}$

$\sf \: Work \: done \: by \: tap \: (A + B) \: :$

$\sf \longrightarrow \: \dfrac{1}{8} \: - \: \dfrac{1}{12} \: = \: \dfrac{3 \: - \: 2}{24} \: = \: \dfrac{1}{24}$

$\sf \: Thus, \: Time \: taken \: by \: tap \: A \: and \: B \: to \: fill \: the \: tank \: = \:1 \: + \: \dfrac{1}{24} \: = \: 24 \: hours.$

_____________________________________

Solution : 3

$\sf \: When \: there \: is \: no \: leakage$

$\sf \: Time \: taken \: by \: pipe \: to \: fill \: the \: cistern \: = \: 3 \: hours.$

$\sf \: Work \: done \: by \: pipe \: in \: 1 \: hours \: = \: \dfrac{1}{3}$

$\sf \: When \: there \: is \: leakage$

$\sf \: Time \: taken \: by \: pipe \: to \: fill \: the \: tank \: = \: 4 \: hours.$

$\sf \: Work \: done \: by \: pipe \: in \: 1 \: hours \: = \: - \: \dfrac{1}{4}$

$\sf \: Work \: done \: by \: the \: leak \: in \: 1 \: hour \: :$

$\sf \: \dfrac{1}{3} \: - \: \dfrac{1}{4} \: = \: \dfrac{4 \: - \: 3}{12} \: = \: \dfrac{1}{12}$

$\sf \: Hence \: the \: Cistern \: will \: be \: emptied \: by \: the \: leakage \: in \: 12 \: hours.$

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