332354 + Interview Questions in Secondary School in Math

1.	In the given figure EADF is a rectangle and ABC is a triangle whose vertices lie on the sides of EADF.AE=22,BE=6,CF=16 and BF=2then area of triangle ABC is ?
Answer» ANSWER: Can you PLEASE SEND the FIGURE

1.

In the given figure EADF is a rectangle and ABC is a triangle whose vertices lie on the sides of EADF.AE=22,BE=6,CF=16 and BF=2then area of triangle ABC is ?

Answer»

ANSWER:

Can you PLEASE SEND the FIGURE

Discussion

2.	. A shepherd has 200 sheep with him. Find the number of sheeps with him ante3 years if the increase in number of sheeps is 8% every year,
Answer» ANSWER: after 1 year TOTAL NUMBER of sheeps 200+2008/100 216 hence there is increase of 16 sheep per year so after 3 years total number of sheeps are 200+163 =248 ans Step-by-step EXPLANATION:

2.

. A shepherd has 200 sheep with him. Find the number of sheeps with him ante3 years if the increase in number of sheeps is 8% every year,

Answer»

ANSWER:

after 1 year

TOTAL NUMBER of sheeps

200+200*8/100

216 hence there is increase of 16 sheep per year

so after 3 years total number of sheeps are

200+16*3

=248 ans

Step-by-step EXPLANATION:

Discussion

3.	If x=3+underroot8, then find value of (x square +1/2x square)
Answer» Answer: x=3+underoot8 squaring both side x^2=[3+underoot8]^2 x^2=9+8+6root8 x^2=17+6root8 now 1/2x^2 =1/{2[17+6root8]} 1/[34+12root8] rationalise [34-12root8]/[34^2-12root8^2] [34-12root8]/[1156-1152] [34-12root8]/4 now ACCORDING to question x^2+1/2x^2 =17+6root8+34/4-12root8/4 =25.5+3root8 =25.5+6root8 ans Step-by-step EXPLANATION:

3.

If x=3+underroot8, then find value of (x square +1/2x square)

Answer»

Answer:

x=3+underoot8

squaring both side

x^2=[3+underoot8]^2

x^2=9+8+6root8

x^2=17+6root8

now

1/2x^2

=1/{2[17+6root8]}

1/[34+12root8]

rationalise

[34-12root8]/[34^2-12root8^2]

[34-12root8]/[1156-1152]

[34-12root8]/4

now

ACCORDING to question

x^2+1/2x^2

=17+6root8+34/4-12root8/4

=25.5+3root8

=25.5+6root8 ans

Step-by-step EXPLANATION:

Discussion

4.	6. The table shows the labourers in a factory sorted according to their daily wages, what is the mean daily wage in this factory. Daily Wages(Rs) 250-300 Number of workers 8. 300-350 4. 16 350-400 400-450 7. 450-500,5
Answer» Answer:425 Step-by-step EXPLANATION to FIND MEAN we do TOTAL amount/total NUMBER

4.

6. The table shows the labourers in a factory sorted according to their daily wages, what is the mean daily wage in this factory. Daily Wages(Rs) 250-300 Number of workers 8. 300-350 4. 16 350-400 400-450 7. 450-500,5

Answer»

Answer:425

Step-by-step EXPLANATION to FIND MEAN we do TOTAL amount/total NUMBER

Discussion

5.	If the digits 4 and 5 and digits 7 and 2 are interchanged then value of the expression 2x15/7-15+45-54/9
Answer» ANSWER: Hi mate, here's your answer Step-by-step explanation: =715/2-15+54-45/9 =77.5-15+54-5 =52.5-15+54-5 =52.5+39-5 =91.5-5 =86.5 Pls do mark my answer as the BRAINLIEST

5.

If the digits 4 and 5 and digits 7 and 2 are interchanged then value of the expression 2x15/7-15+45-54/9

Answer»

ANSWER:

Hi mate, here's your answer

Step-by-step explanation:

=7*15/2-15+54-45/9

=7*7.5-15+54-5

=52.5-15+54-5

=52.5+39-5

=91.5-5

=86.5

Pls do mark my answer as the BRAINLIEST

Discussion

6.	2181, 1452, 1011, 786, 705, ?
Answer» Answer: 705,786,1011,1452,2181

6.

2181, 1452, 1011, 786, 705, ?

Answer»

Answer:

705,786,1011,1452,2181

Discussion

7.	Area of a triangle with perimeter 42 cm and length of two sides 18 cm and 10 cm is given by ...........
Answer» answer:- here is ur answer MATE hope u find it HELPFUL

7.

Area of a triangle with perimeter 42 cm and length of two sides 18 cm and 10 cm is given by ...........

Answer»

answer:-

here is ur answer MATE hope u find it HELPFUL

Discussion

8.	If p=(-3), q=0, r=2, find the value of 4p2 + q2+3pqr
Answer» Answer: 3 KE BAAD KYA LIKHA HAIN

8.

If p=(-3), q=0, r=2, find the value of 4p2 + q2+3pqr

Answer»

Answer:

3 KE BAAD KYA LIKHA HAIN

Discussion

9.	EXPRESS -1 .0.000642.0.134343 in p/q form do p/q form in only 2nd questionexplain and answer me as fast as possible
Answer» Answer: 1. 6.4 X 10 $6.4 \times {10}^{4 }$

9.

EXPRESS -1 .0.000642.0.134343 in p/q form do p/q form in only 2nd questionexplain and answer me as fast as possible

Answer»

Answer:

1. 6.4 X 10

$6.4 \times {10}^{4 }$

Discussion

10.	Plz answer the questionfill an appropriate word
Answer» ANSWER: in... MARK as BRAINLIEST...........

10.

Plz answer the questionfill an appropriate word

Answer»

ANSWER:

in...

MARK as BRAINLIEST...........

Discussion

11.	If 2sina= 1, find the acute value of a
Answer» ☆:.｡.o(≧▽≦)o.｡.:☆ ♪H♪E♪Y♪ ♪M♪A♪T♪E♪ ♪H♪E♪R♪E♪ ♪I♪S♪ ♪Y♪O♪U♪ ♪A♪N♪S♪W♪E♪R♪ ⚡H⚡O⚡P⚡E⚡ ⚡I⚡T⚡ ⚡W⚡I⚡L⚡L⚡ ⚡H⚡E⚡L⚡P⚡ ⚡Y⚡O⚡U⚡ ☾F☽☾O☽☾L☽☾L☽☾O☽☾W☽ ☾F☽☾O☽☾R☽ ☾M☽☾O☽☾R☽☾E☽ ☾A☽☾N☽☾S☽☾W☽☾E☽☾R☽☾S☽ (◕‿◕)♡

11.

If 2sina= 1, find the acute value of a

Answer»

☆*:.｡.o(≧▽≦)o.｡.:*☆

♪H♪E♪Y♪ ♪M♪A♪T♪E♪ ♪H♪E♪R♪E♪ ♪I♪S♪ ♪Y♪O♪U♪ ♪A♪N♪S♪W♪E♪R♪

⚡H⚡O⚡P⚡E⚡ ⚡I⚡T⚡ ⚡W⚡I⚡L⚡L⚡ ⚡H⚡E⚡L⚡P⚡ ⚡Y⚡O⚡U⚡

☾F☽☾O☽☾L☽☾L☽☾O☽☾W☽ ☾F☽☾O☽☾R☽ ☾M☽☾O☽☾R☽☾E☽ ☾A☽☾N☽☾S☽☾W☽☾E☽☾R☽☾S☽

(◕‿◕)♡

Discussion

12.	Does anyone know the syllabus for grade 10 fa-1 exam for maths and science?
Answer» ANSWER: no SORRY BRO.............................

12.

Does anyone know the syllabus for grade 10 fa-1 exam for maths and science?

Answer»

ANSWER:

no SORRY BRO.............................

Discussion

13.	4power1x(-1)power29×(-5)power3×(-10)power3
Answer» $4^{-1}-1^{29} 5^{-3} * -10^3$ $= (\frac14 )( -1) \frac1{125} * (-1000)$ $= \frac14 * \frac1{-125} * -1000$ $= \frac1{-500} * -1000$ $=2$ PLEASE MARK as Brainliest. Thanks.

13.

4power1x(-1)power29×(-5)power3×(-10)power3

Answer»

$4^{-1}*-1^{29} * 5^{-3} * -10^3$

$= (\frac14 )*( -1) * \frac1{125} * (-1000)$

$= \frac14 * \frac1{-125} * -1000$

$= \frac1{-500} * -1000$

$=2$

PLEASE MARK as Brainliest.

Thanks.

Discussion

14.	a cylindrical bucket of diameter 28 cm and height 20cm was full of sand when the sand in the bucket was poured. on the ground , the sand got converted into a shape of a cone .if the height of the cone was 14cm , what was the base area of the cone ?
Answer» ANSWER: 2640 cm^2 Hope this answer HELPS you Hope this answer helps you MARK me as the brainliest Hope this answer helps you mark me as the brainliest thank you ..

14.

a cylindrical bucket of diameter 28 cm and height 20cm was full of sand when the sand in the bucket was poured. on the ground , the sand got converted into a shape of a cone .if the height of the cone was 14cm , what was the base area of the cone ?

Answer»

ANSWER:

2640 cm^2

Hope this answer HELPS you

Hope this answer helps you MARK me as the brainliest

Hope this answer helps you mark me as the brainliest thank you ..

Discussion

15.	If. I get rs. 56100 per month, how much will u get in a day
Answer» ANSWER: RUPEES 1670 DIVIDE TERM with 30

15.

If. I get rs. 56100 per month, how much will u get in a day

Answer»

ANSWER:

RUPEES 1670

DIVIDE TERM with 30

Discussion

16.	Find the area of the shaded region in the given figure if the radiiof the bigger and the smaller circle are 6cm and 4cm respectively
Answer» ANSWER: 2πr = 2×3.14×6(area of bigger circle) Step-by-step EXPLANATION: =6.28×6 =628×6 =3768 =37.68 (area of smaller circle by above method ) =25.12 area of SHADED portion =37.68-25.12 =12.56

16.

Find the area of the shaded region in the given figure if the radiiof the bigger and the smaller circle are 6cm and 4cm respectively

Answer»

ANSWER:

2πr = 2×3.14×6(area of bigger circle)

Step-by-step EXPLANATION:

=6.28×6

=628×6

=3768

=37.68

(area of smaller circle by above method )

=25.12

area of SHADED portion =37.68-25.12

=12.56

Discussion

17.	Payal borrowed rupees 7000 for 3 years and paid 1470 as simple interest find the rate of interest
Answer» Answer: 7 Step-by-step explanation: 1470=7000x3xr/100 1470=210xr r=1470/210 =7%

17.

Payal borrowed rupees 7000 for 3 years and paid 1470 as simple interest find the rate of interest

Answer»

Answer:

7

Step-by-step explanation:

1470=7000x3xr/100

1470=210xr

r=1470/210

=7%

Discussion

18.	Angle A and B are supplementary angles. If angle A is 3/7 of complementary angle.find angle A and B?
Answer» ANSWER: suougrdf ffggfvuuj greghyrhv

18.

Angle A and B are supplementary angles. If angle A is 3/7 of complementary angle.find angle A and B?

Answer»

ANSWER:

suougrdf ffggfvuuj greghyrhv

Discussion

19.	A shopkeeper has just enough money to buy 52 cycles worth rupees 525 each. If each cycle were to cost rupees 21 more then how many cycles would he be able to buy with the same amount of money?
Answer» Answer: cp of one cycle =525 RS cp of 52 cycle= 52*525 = rs. 27300 if each cycle cost 21 rs more, then cp of on cycle = 525+21=rs 546 then, no. of cycle he will be able to BUY = 27300/546= 50 CYCLES thus, the shopkeeper can buy 50 cycles with the same amount of money. hope this help

19.

A shopkeeper has just enough money to buy 52 cycles worth rupees 525 each. If each cycle were to cost rupees 21 more then how many cycles would he be able to buy with the same amount of money?

Answer»

Answer:

cp of one cycle =525 RS

cp of 52 cycle= 52*525 = rs. 27300

if each cycle cost 21 rs more,

then cp of on cycle = 525+21=rs 546

then, no. of cycle he will be able to BUY = 27300/546= 50 CYCLES

thus, the shopkeeper can buy 50 cycles with the same amount of money.

hope this help

Discussion

20.	Y is equal to 3 X + 5 has how many solutions
Answer» ANSWER: y=3x+5 let x=zero y=3(0) +5 y=0+5 y=5

20.

Y is equal to 3 X + 5 has how many solutions

Answer»

ANSWER:

y=3x+5

let x=zero

y=3(0) +5

y=0+5

y=5

Discussion

21.	In trapezium ABCD as shown in fig 15.4, angle D =90°,BC=CD=13cm,AD=12cm and AB=18cm.find the area of the trapezium
Answer» ANSWER: where is FIG 15.4 my FRIEND

21.

In trapezium ABCD as shown in fig 15.4, angle D =90°,BC=CD=13cm,AD=12cm and AB=18cm.find the area of the trapezium

Answer»

ANSWER:

where is FIG 15.4 my FRIEND

Discussion

22.	Find the area's of rectangles whose sides are 28m and 17m
Answer» ANSWER: Answer:ANS= 476 Answer:Ans= 476Step-by-step explanation: Answer:Ans= 476Step-by-step explanation:AREA of rectangle = length x BREADTH

22.

Find the area's of rectangles whose sides are 28m and 17m

Answer»

ANSWER:

Answer:ANS= 476

Answer:Ans= 476Step-by-step explanation:

Answer:Ans= 476Step-by-step explanation:AREA of rectangle = length x BREADTH

Discussion

23.	If triangle ABC is similar to triangle DEF such that BC=3cm,EF=4cm and area of triangle ABC=54square cm.Find the area of triangle DEF.
Answer» Answer: 96 SQ CM Step-by-step EXPLANATION: area of ABC = 3 * height H=54 area of DEF = 4 * H4/3=544/34/3 =5416/9=96 sq cm.

23.

If triangle ABC is similar to triangle DEF such that BC=3cm,EF=4cm and area of triangle ABC=54square cm.Find the area of triangle DEF.

Answer»

Answer:

96 SQ CM

Step-by-step EXPLANATION:

area of ABC = 3 * height H=54

area of DEF = 4 * H*4/3=54*4/3*4/3

=54*16/9=96 sq cm.

Discussion

24.	If a1 =- 1 then find a2 a3 in an=an-1/n+2, n;1 n € n
Answer» Answer: HOPE it will be CORRECT and HELP you! PLZ mark me branlient !!

24.

If a1 =- 1 then find a2 a3 in an=an-1/n+2, n;1 n € n

Answer»

Answer:

HOPE it will be CORRECT and HELP you! PLZ mark me branlient !!

Discussion

25.	Give the algebraic expressions for 5 less than product of x and y square
Answer» ANSWER: (x^2 * y^2) -5 Step-by-step EXPLANATION: as it is SAID

25.

Give the algebraic expressions for 5 less than product of x and y square

Answer»

ANSWER:

(x^2 * y^2) -5

Step-by-step EXPLANATION:

as it is SAID

Discussion

26.	A and B working separately can do a piece of work in 9 and 15 days respectively. If they work for a day alternately, with B beginning, then the work will be complete in
Answer» ANSWER: whole WORK COMPLETE in 11 DAYS

26.

A and B working separately can do a piece of work in 9 and 15 days respectively. If they work for a day alternately, with B beginning, then the work will be complete in

Answer»

ANSWER:

whole WORK COMPLETE in 11 DAYS

Discussion

27.	Find the breadth of the rectangle whose area is 68 sq. Metre and length is 17 metre
Answer» AREA = Lb 68= = 17 b b= 68/17 = 4m Please MARK as Brainliest. Thanks.

27.

Find the breadth of the rectangle whose area is 68 sq. Metre and length is 17 metre

Answer»

AREA = L*b

68= = 17 * b

b= 68/17 = 4m

Please MARK as Brainliest.

Thanks.

Discussion

28.	(a) 28(b) 304. श्रेढ़ी 201, 208, 215, ..., 369 में कुल कितने पद हैं ?(c)23
Answer» Answer: 28 PAD EEN sankhayao me HAI

28.

(a) 28(b) 304. श्रेढ़ी 201, 208, 215, ..., 369 में कुल कितने पद हैं ?(c)23

Answer»

Answer:

28 PAD EEN sankhayao me HAI

Discussion

29.	Find x for this problem from understaning qvadrilaterals lesson
Answer» ANSWER: X=60 because INSIDE ANGLE TRIANGLE

29.

Find x for this problem from understaning qvadrilaterals lesson

Answer»

ANSWER:

X=60 because INSIDE ANGLE TRIANGLE

Discussion

30.	In a figure AC is 15 CM, AD is 3 CM. BD is 9 CM and DE is 4 CM also angle ABC is 90 degree and bc perpendicular to DE find the lengths of AE and BC
Answer» ANSWER: URS the FORMULA Step-by-step EXPLANATION: 15×3÷ 9×4π×90

30.

In a figure AC is 15 CM, AD is 3 CM. BD is 9 CM and DE is 4 CM also angle ABC is 90 degree and bc perpendicular to DE find the lengths of AE and BC

Answer»

ANSWER:

URS the FORMULA

Step-by-step EXPLANATION:

15×3÷

9×4π×90

Discussion

31.	the price of a dekstop computer is decreased from 1360 to 1020.find the percentage of decrease in its price
Answer» ANSWER: PRICE of deskstop DECREASED by 25%

31.

the price of a dekstop computer is decreased from 1360 to 1020.find the percentage of decrease in its price

Answer»

ANSWER:

PRICE of deskstop DECREASED by 25%

Discussion

32.	Ye matrices chaoter ka question hain
Answer» Answer: sorry hum Kal baat KARE MUJHE TUTION padhne Jana HAI aap mujhse Kal baat karna 12 baje ok bye good night

32.

Ye matrices chaoter ka question hain

Answer»

Answer:

sorry hum Kal baat KARE MUJHE TUTION padhne Jana HAI aap mujhse Kal baat karna 12 baje

ok bye

good night

Discussion

33.	given that x satisfied the inequality 20x >33, find the smallest value of x if xis a prime number.
Answer» ANSWER: vnvnnvjvjvkghkhkhklhhkhk

33.

given that x satisfied the inequality 20x >33, find the smallest value of x if xis a prime number.

Answer»

ANSWER:

vnvnnvjvjvkghkhkhklhhkhk

Discussion

34.	Tell firstly plzz so I marked in brainlist
Answer» ☆:.｡.o(≧▽≦)o.｡.:☆ ♪H♪E♪Y♪ ♪M♪A♪T♪E♪ ♪H♪E♪R♪E♪ ♪I♪S♪ ♪Y♪O♪U♪ ♪A♪N♪S♪W♪E♪R♪ ⚡H⚡O⚡P⚡E⚡ ⚡I⚡T⚡ ⚡W⚡I⚡L⚡L⚡ ⚡H⚡E⚡L⚡P⚡ ⚡Y⚡O⚡U⚡ ☾F☽☾O☽☾L☽☾L☽☾O☽☾W☽ ☾F☽☾O☽☾R☽ ☾M☽☾O☽☾R☽☾E☽ ☾A☽☾N☽☾S☽☾W☽☾E☽☾R☽☾S☽ (◕‿◕)♡

34.

Tell firstly plzz so I marked in brainlist

Answer»

☆*:.｡.o(≧▽≦)o.｡.:*☆

♪H♪E♪Y♪ ♪M♪A♪T♪E♪ ♪H♪E♪R♪E♪ ♪I♪S♪ ♪Y♪O♪U♪ ♪A♪N♪S♪W♪E♪R♪

⚡H⚡O⚡P⚡E⚡ ⚡I⚡T⚡ ⚡W⚡I⚡L⚡L⚡ ⚡H⚡E⚡L⚡P⚡ ⚡Y⚡O⚡U⚡

☾F☽☾O☽☾L☽☾L☽☾O☽☾W☽ ☾F☽☾O☽☾R☽ ☾M☽☾O☽☾R☽☾E☽ ☾A☽☾N☽☾S☽☾W☽☾E☽☾R☽☾S☽

(◕‿◕)♡

Discussion

35.	if perimeter of a square ABCD=100 cm.if angle DAG=angle CBG =30,then what is perimeter of triangle ABG
Answer» ANSWER: it will TWICE the AREA of SQUARE because it SIMILAR to triangle ABG

35.

if perimeter of a square ABCD=100 cm.if angle DAG=angle CBG =30,then what is perimeter of triangle ABG

Answer»

ANSWER:

it will TWICE the AREA of SQUARE because it SIMILAR to triangle ABG

Discussion

36.	2, 12, 69, 341, ? next term
Answer» Step-by-step EXPLANATION: given me the full question I ANSWER it ok

36.

2, 12, 69, 341, ? next term

Answer»

Step-by-step EXPLANATION:

given me the full question

I ANSWER it ok

Discussion

37.	Difference of two number is 8 if one of his three times of the other then what are the number?
Answer» Answer: 24 and 32 and so on Step-by-step EXPLANATION: because if SUBTRACT 24-32=8 the EXAMPLE and so on

37.

Difference of two number is 8 if one of his three times of the other then what are the number?

Answer»

Answer:

24 and 32 and so on

Step-by-step EXPLANATION:

because if SUBTRACT 24-32=8 the EXAMPLE and so on

Discussion

38.	12, 16.5, 25.5, 39, 57, ?
Answer» Answer: 79.5 Step-by-step EXPLANATION: There is a DIFFERENCE of MULTIPLES of 4.5 12+4.5=16.5 16.5+9.0=25.5 25.5+13.5=39 39+18.0=57 57+22.5=79.5

38.

12, 16.5, 25.5, 39, 57, ?

Answer»

Answer:

79.5

Step-by-step EXPLANATION:

There is a DIFFERENCE of MULTIPLES of 4.5

12+4.5=16.5

16.5+9.0=25.5

25.5+13.5=39

39+18.0=57

57+22.5=79.5

Discussion

39.	. Calculate the Mean, Median and Mode of the following data: 5, 10, 10, 12, 13. Are these three equal ?
Answer» ANSWER: MEAN =(5+10+10+12+13)÷5 =50÷5 10 median = (n+1)/2 TH TERM =(5+1)/2th term =6/2 th term 3rd term = 10 mode=10

39.

. Calculate the Mean, Median and Mode of the following data: 5, 10, 10, 12, 13. Are these three equal ?

Answer»

ANSWER:

MEAN =(5+10+10+12+13)÷5

=50÷5

10

median = (n+1)/2 TH TERM

=(5+1)/2th term

=6/2 th term

3rd term = 10

mode=10

Discussion

40.	15. 4R sin A. Sin B. Sin C is equal to :(a) a+b+c(b) (a+b+(c) (a+b+c) R(d) (a+b+c)r/R
Answer» ANSWER is a) a+b+c or aCos+bCos+cCos HOPE so HELP you

Discussion

41.	find the value of the given expression,if y=2. (1/3y×y -4/7y +5)-(2/7y-2/3y×y +2)
Answer» ANSWER: i DONT know Step-by-step EXPLANATION:

41.

find the value of the given expression,if y=2. (1/3y×y -4/7y +5)-(2/7y-2/3y×y +2)

Answer»

ANSWER:

i DONT know

Step-by-step EXPLANATION:

Discussion

42.	The ratio between the curved surface and total surface of a cylinder is 1:2. Find thevolume of the cylinder, given that its total surface area is 616 cm
Answer» Step-by-step explanation: 2πrh/2πr(r+h)=1/2 h/r+h=1/2 cross multiply 2h=r+h r=h 4πrh=616 r=7 volume = π7^3 =1078cm^3

42.

The ratio between the curved surface and total surface of a cylinder is 1:2. Find thevolume of the cylinder, given that its total surface area is 616 cm

Answer»

Step-by-step explanation:

2πrh/2πr(r+h)=1/2

h/r+h=1/2

cross multiply

2h=r+h

r=h

4πrh=616

r=7

volume = π7^3

=1078cm^3

Discussion

43.	Place √7 on number line
Answer» Answer: Take AB = 7 cm. From B, Mark a distance of 1 cm and mark it as C. Find the MIDPOINT of AC and mark it as O. Draw a SEMICIRCLE with radius as OC from O. Draw a line perpendicular to AC passing through B and intersecting the semicircle at D. Then BD = √7. I *hope* *you* *UNDERSTOOD* my *answer. Plzz* *mark* it as *brainliest. Thank* *you* *TAUTIK*

43.

Place √7 on number line

Answer»

Answer:

Take AB = 7 cm.

From B, Mark a distance of 1 cm and mark it as C.

Find the MIDPOINT of AC and mark it as O.

Draw a SEMICIRCLE with radius as OC from O.

Draw a line perpendicular to AC passing through B and intersecting the semicircle at D. Then BD = √7.

I hope you UNDERSTOOD my answer.

Plzz mark it as brainliest.

Thank you

TAUTIK

Discussion

44.	What are overhead expenses
Answer» Answer: the expenses which we MAKE apart from the cost price like GIFT wrapping are COUNTED as OVERHEAD expenses while calculating the profit the overhead expenses are included in the CP please mark as BRAINLIEST

44.

What are overhead expenses

Answer»

Answer:

the expenses which we MAKE apart from the cost price like GIFT wrapping are COUNTED as OVERHEAD expenses while calculating the profit the overhead expenses are included in the CP

please mark as BRAINLIEST

Discussion

45.	5 Which of the following eatios isequivalent to 1 1 2 ?a) 2. I b) 2:3 ) 3 3.5 d) 8:14
Answer» 11 : 2 = 5.5 : 1 None of the OPTIONS are equivalent to the GIVEN ratio.

45.

5 Which of the following eatios isequivalent to 1 1 2 ?a) 2. I b) 2:3 ) 3 3.5 d) 8:14

Answer»

11 : 2 = 5.5 : 1

None of the OPTIONS are equivalent to the GIVEN ratio.

Discussion

46.	Two rectangular sheets of paper is 30 cm X 18 cm are rolled into two right circular cylinders 1 by Rolling the paper along its length and the other along the breadth the ratio of the volumes of the two cylinders formed isa) 2:1b)3:2c)4:3d)5:3
Answer» OPTION- (d)DETAILED EXPLANATION is in PHOTO

Discussion

47.	۱۹find the diameter of circle whose cicumference is 15.7ماfindthediamofcircleof whose & crcanسر 3. 2فرهنگع ه ع چرادرکرش مر لردكاراملحالاbextontoa circle.
Answer» ANSWER: circumference of a circle=2πr So, 15.7=2×22÷7×r hence, r=2.49 As diameter is TWICE the radius, the diameter is 4.99 that APPROX. can be WRITTEN as 5 Hope this answer HELPS you!!

47.

۱۹find the diameter of circle whose cicumference is 15.7ماfindthediamofcircleof whose & crcanسر 3. 2فرهنگع ه ع چرادرکرش مر لردكاراملحالاbextontoa circle.

Answer»

ANSWER:

circumference of a circle=2πr

So, 15.7=2×22÷7×r

hence, r=2.49

As diameter is TWICE the radius,

the diameter is 4.99 that APPROX. can be WRITTEN as 5

Hope this answer HELPS you!!

Discussion

48.	Prove that the bisectors of two adjacent angles of a parallelogram enclose a right angle.
Answer» ANSWER: MAY this HELP you THANKS...........

48.

Prove that the bisectors of two adjacent angles of a parallelogram enclose a right angle.

Answer»

ANSWER:

MAY this HELP you THANKS...........

Discussion

49.	the internal measures of a cuboidal room are 12 metre into 8 into 4 metre find the total cost of whitewashing all four walls of a room if the cost of whitewashing is 5 rupees per metre square what will be the cost of the white washing if the ceiling of the room is also washed
Answer» l=12m, b=8m, h=4m Area to be whitewashed = 2(lh + bh) + LB, since floor is not to be counted. Area = 2(48 + 32) + 96 Area = 280 + 96 Area = 160 + 96 = 256 Cost = 256 5 = ₹1280 Hope you find my ANSWER useful. Please MARK as Brainliest. Thanks.

49.

the internal measures of a cuboidal room are 12 metre into 8 into 4 metre find the total cost of whitewashing all four walls of a room if the cost of whitewashing is 5 rupees per metre square what will be the cost of the white washing if the ceiling of the room is also washed

Answer»

l=12m, b=8m, h=4m

Area to be whitewashed = 2(lh + bh) + LB, since floor is not to be counted.

Area = 2(48 + 32) + 96

Area = 2*80 + 96

Area = 160 + 96 = 256

Cost = 256 * 5 = ₹1280

Hope you find my ANSWER useful.

Please MARK as Brainliest.

Thanks.

Discussion

50.	The total surface area of a right circular coneof slant height 13 cm is 90 cm", find itsradius and volume.
Answer» Answer: Radius = 5 cm Volume = ≈ 314 cm^3 OR 2200/7 Step-by-step explanation: It should be 90 $\pi$ cm^2 Total SURFACE AREA of right circular cone = $\pi$ R(l+r) 90 $\pi$ = $\pi$ r(13+r) 90 $\pi$ / $\pi$ = r(13+r) 90 = 13r+r^2 r^2 + 13r - 90 = 0 r^2 + 18r - 5r + 90 (By splitting the middle term) r(r + 18) - 5(r+18) (By taking common) (r-5)(r+18) r = 5 r = -18 ( radius cannot be negative) So, r = 5CM $l^{2}$ = $\sqrt{h^2+r^2}$ $13^{2}$ = $\sqrt{h^2+5^2}$ 169 = $\sqrt{h^2+25}$ h = $\sqrt{169-25}$ h = $\sqrt{144}$ h = 12 cm Volume of cone = 1/3 $\pi$ $r^{2}$ h = 1/3 * 3.14 * 5 * 5 * 12 ≈ 314 cm^3 OR 2200/7 Hope it help. PLEASE mark it as the brainliest.

50.

The total surface area of a right circular coneof slant height 13 cm is 90 cm", find itsradius and volume.

Answer»

Answer:

Radius = 5 cm

Volume = ≈ 314 cm^3 OR 2200/7

Step-by-step explanation:

It should be 90 $\pi$ cm^2

Total SURFACE AREA of right circular cone = $\pi$ R(l+r)

90 $\pi$ = $\pi$ r(13+r)

90 $\pi$ / $\pi$ = r(13+r)

90 = 13r+r^2

r^2 + 13r - 90 = 0

r^2 + 18r - 5r + 90 (By splitting the middle term)

r(r + 18) - 5(r+18) (By taking common)

(r-5)(r+18)

r = 5

r = -18 ( radius cannot be negative)

So, r = 5CM

$l^{2}$ = $\sqrt{h^2+r^2}$

$13^{2}$ = $\sqrt{h^2+5^2}$

169 = $\sqrt{h^2+25}$

h = $\sqrt{169-25}$

h = $\sqrt{144}$

h = 12 cm

Volume of cone = 1/3 $\pi$ $r^{2}$ h

= 1/3 * 3.14 * 5 * 5 * 12

≈ 314 cm^3 OR 2200/7

Hope it help. PLEASE mark it as the brainliest.

Discussion

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