332354 + Interview Questions in Secondary School in Math

1.	Which 2 shapes are these(3D)Down below
Answer» Answer: 1) TRIANGLES and hexagon 2) RECTANGLES and trapezium Step-by-step EXPLANATION:

1.

Which 2 shapes are these(3D)Down below

Answer»

Answer:

1) TRIANGLES and hexagon

2) RECTANGLES and trapezium

Step-by-step EXPLANATION:

2.	AD=2.4 CM , AC=5CM, AE=2, FIND BD
Answer» where is QUESTION PLEASE GIVE question

Discussion

3.	Solve the equation 2y+5y=37 2
Answer» Answer: 7y = 372 y = 372/7 = 53.14 answer. hope it HELPS you... mark brainliest

3.

Solve the equation 2y+5y=37 2

Answer»

Answer:

7y = 372

y = 372/7 = 53.14 answer.

hope it HELPS you...

mark brainliest

Discussion

4.	Find the smallest number must be added to 450 to make
Answer» ANSWER: PLEASE GIVE the FULL QUESTION

4.

Find the smallest number must be added to 450 to make

Answer»

ANSWER:

PLEASE GIVE the FULL QUESTION

Discussion

5.	ફક્ત ગુજરાતી લોકો જવાબ આપશે .. ત્રિકોણ નું ઝેત્રફળ કઇ રીતે શોધવામાં આવે છે???...... હું અહીંયા નવો છું સપોર્ટ કર જો હો
Answer» ANSWER: Step-by-step EXPLANATION ASK QUESTION in ENGLISH

5.

ફક્ત ગુજરાતી લોકો જવાબ આપશે .. ત્રિકોણ નું ઝેત્રફળ કઇ રીતે શોધવામાં આવે છે???...... હું અહીંયા નવો છું સપોર્ટ કર જો હો

Answer»

ANSWER:

Step-by-step EXPLANATION

ASK QUESTION in ENGLISH

Discussion

6.	Answer please please.
Answer» Answer: a)At QUARTER past the HOUR, the minute-hand is exactly at 3:00 B)Quarter to 12 is the same as 11:45 c)at 6 d)30 minute e)June f) TUESDAY

6.

Answer please please.

Answer»

Answer:

a)At QUARTER past the HOUR, the minute-hand is exactly at 3:00

B)Quarter to 12 is the same as 11:45

c)at 6

d)30 minute

e)June

f) TUESDAY

Discussion

7.	The1. solve the equation •2x - 1/2 =3
Answer» Step-by-step EXPLANATION: FOLLOW me and MARK me as BRAINLIST.

7.

The1. solve the equation •2x - 1/2 =3

Answer»

Step-by-step EXPLANATION:

FOLLOW me and MARK me as BRAINLIST.

Discussion

8.	after allowing a discount of 10% there was still a gain of 5%. at what per cent above the cost price was the marked price ?
Answer» Answer:16.666% above the CP Step-by-step explanation: Let the cp be ₹x. Sp including gain= 105% of x=21x/20 90% of Sp=21x/20 90Sp/100=21x/20 Sp=21x100/9020 Sp=21x5/90 Sp=21x/18 Sp=7x/6 It means Sp=(7*100/6)% of x 116.666% of x Therefore, the marked PRICE should be (116.666-100)% above the Cp 16.666% above the Cp

8.

after allowing a discount of 10% there was still a gain of 5%. at what per cent above the cost price was the marked price ?

Answer»

Answer:16.666% above the CP

Step-by-step explanation:

Let the cp be ₹x.

Sp including gain=

105% of x=21x/20

90% of Sp=21x/20

90*Sp/100=21x/20

Sp=21x*100/90*20

Sp=21x*5/90

Sp=21x/18

Sp=7x/6

It means Sp=(7*100/6)% of x

116.666% of x

Therefore, the marked PRICE should be (116.666-100)% above the Cp

16.666% above the Cp

Discussion

9.	Please answer with explanation...
Answer» ANSWER: option (B) 1 is the correct answer Step-by-step EXPLANATION: that means the numbers of SET A intersection set B .means the common number in set A and set B

9.

Please answer with explanation...

Answer»

ANSWER:

option (B) 1 is the correct answer

Step-by-step EXPLANATION:

that means the numbers of SET A intersection set B .means the common number in set A and set B

Discussion

10.	Washing machine is a device washer dishes and wtlery.true/falseg.k book
Answer» Answer: false Step-by-step EXPLANATION: WASHING MACHINE is a device that WASH CLOTHES.

10.

Washing machine is a device washer dishes and wtlery.true/falseg.k book

Answer»

Answer:

false

Step-by-step EXPLANATION:

WASHING MACHINE is a device that WASH CLOTHES.

Discussion

11.	The selling price of two brands of air conditioner together is 50000 rupees on selling one air conditioner gains 10% and on other he loses 10% find the cost price of airconditioner
Answer» Answer: HOPE it HELPS pls MARK as brainliest answer and FOLLOW me and give thanks if it helped pls mark as brainliest answer

11.

The selling price of two brands of air conditioner together is 50000 rupees on selling one air conditioner gains 10% and on other he loses 10% find the cost price of airconditioner

Answer»

Answer:

HOPE it HELPS

pls MARK as brainliest answer

and FOLLOW me

and give thanks if it helped

pls mark as brainliest answer

Discussion

12.	Subtract 2a(a-b+c) - 2b(a-b-c) by c(-a+b+c)
Answer» Step-by-step explanation: krle khud bhaut SIMPLE h agr ISSE b hum btaenge to bro Tu kya krega.....TRY kt Bhai hojaega

12.

Subtract 2a(a-b+c) - 2b(a-b-c) by c(-a+b+c)

Answer»

Step-by-step explanation:

krle khud bhaut SIMPLE h agr ISSE b hum btaenge to bro Tu kya krega.....TRY kt Bhai hojaega

Discussion

13.	if 12000 men can be killed in an hour firing one round in 4 minutes. How many men will be killed in that time firing one round in 5 minutes ?
Answer» Answer: 15000 Step-by-step EXPLANATION: given, no. of MEN can be KILLED in 4 MIN= 12000 no. of men can be killed in 1 min= 12000/4= 3000 no. of men can be killed in 5 min= 3000x5= 15000

13.

if 12000 men can be killed in an hour firing one round in 4 minutes. How many men will be killed in that time firing one round in 5 minutes ?

Answer»

Answer:

15000

Step-by-step EXPLANATION:

given,

no. of MEN can be KILLED in 4 MIN= 12000

no. of men can be killed in 1 min= 12000/4= 3000

no. of men can be killed in 5 min= 3000x5= 15000

Discussion

14.	if 2 is one of the zero of polynomial p(x)=x^3-10x^2+31x-30 then find the other two zeroes without using factors method
Answer» FOLLOW this METHOD to SOLVE if its RIGHT follow me

14.

if 2 is one of the zero of polynomial p(x)=x^3-10x^2+31x-30 then find the other two zeroes without using factors method

Answer»

FOLLOW this METHOD to SOLVE

if its RIGHT follow me

Discussion

15.	28. Find the sum of first 51 terms of an AP whose second and third terms are 14 and 18respectively.Sobot
Answer» Answer: 5610 Step-by-step explanation: Let first term be a and common DIFFERENCE be d We have : a + ( 2 - 1 ) d = 14 a + d = 14 a = 14 - d .... ( i ) a + ( 3 - 1 ) d = 18 a + 2 d = 18 a = 18 - 2 d ... ( ii ) From ( i ) and ( ii ) 18 - 2 d = 14 - d d = 4 a = 14 - d a = 10 Now : S₅₁ = 51 / 2 ( 20 + 50 × 4 ) S₅₁ = 51 ( 10 + 100 ) S₅₁ = 5610

15.

28. Find the sum of first 51 terms of an AP whose second and third terms are 14 and 18respectively.Sobot

Answer»

Answer:

5610

Step-by-step explanation:

Let first term be a and common DIFFERENCE be d

We have :

a + ( 2 - 1 ) d = 14

a + d = 14

a = 14 - d .... ( i )

a + ( 3 - 1 ) d = 18

a + 2 d = 18

a = 18 - 2 d ... ( ii )

From ( i ) and ( ii )

18 - 2 d = 14 - d

d = 4

a = 14 - d

a = 10

Now :

S₅₁ = 51 / 2 ( 20 + 50 × 4 )

S₅₁ = 51 ( 10 + 100 )

S₅₁ = 5610

Discussion

16.	Find the median of the following data 1,6,7,9,4,8,13,19
Answer» ANSWER: The answer is 9 1 +6+7+9+4+8+13+19 7 =9

16.

Find the median of the following data 1,6,7,9,4,8,13,19

Answer»

ANSWER:

The answer is 9

1 +6+7+9+4+8+13+19

7

=9

Discussion

17.	Unit digit of (5197)^274
Answer» Answer: don't know Step-by-step explanation: SORRY BRO L don't know

17.

Unit digit of (5197)^274

Answer»

Answer:

don't know

Step-by-step explanation:

SORRY BRO L don't know

Discussion

18.	Find the total cost of canvas required in making the tent.
Answer» Answer: HOPE it HELPS PLS mark as BRAINLIEST answer and follow me and give thanks if it helped pls mark as brainliest answer

18.

Find the total cost of canvas required in making the tent.

Answer»

Answer:

HOPE it HELPS

PLS mark as BRAINLIEST answer

and follow me

and give thanks if it helped

pls mark as brainliest answer

Discussion

19.	What is Experiment as shown in the pic..
Answer» ANSWER: This EXPERIMENT is BLANK DEAR

19.

What is Experiment as shown in the pic..

Answer»

ANSWER:

This EXPERIMENT is BLANK DEAR

Discussion

20.	The angle formed in 6 to12
Answer» HEY MATE HOPE it HELPS you.. The ANSWER is 180°.

20.

The angle formed in 6 to12

Answer»

HEY MATE HOPE it HELPS you..

The ANSWER is 180°.

Discussion

21.	Is 5power 9 x5power 2x = 5power 25, the find x
Answer» Answer: 18 Step-by-step EXPLANATION: PLEASE LIKE me and FOLLOW US

21.

Is 5power 9 x5power 2x = 5power 25, the find x

Answer»

Answer:

18

Step-by-step EXPLANATION:

PLEASE LIKE me and FOLLOW US

Discussion

22.	2⅓ .12½ 27½ * 5½ ____________________8½ * 10⅓* 18⅓ * 81¼
Answer» Answer: 3^(1/3) * 5^(1/6) * 2^(-5/6)

22.

2⅓ .12½ 27½ * 5½ ____________________8½ * 10⅓* 18⅓ * 81¼

Answer»

Answer:

3^(1/3) * 5^(1/6) * 2^(-5/6)

Discussion

23.	find the zeros of the quadratic Polynomial me 3xsquare - 2 and verify the relationship between the zeroes and the coi efficient
Answer» Answer: 3x^2-2 is the given QUADRATIC polynomial. To GET ZEROES of the polynomial we should equate to 'zero 0' 3x^2-2=0 3x^2= ...

23.

find the zeros of the quadratic Polynomial me 3xsquare - 2 and verify the relationship between the zeroes and the coi efficient

Answer»

Answer:

3x^2-2 is the given QUADRATIC polynomial. To GET ZEROES of the polynomial we should equate to 'zero 0' 3x^2-2=0 3x^2= ...

Discussion

24.	A field is in shape of a trapezium whose parallel sides are 25m and 10m. The non parallel sides are 14m and 13m. Find the area of field?
Answer» Answer: 3 dog's the same with an open-source and I think that it was not until you are looking to BUY a HOME run in the BOTTOM of a SINGLE entry was POSTED in a row in this is not an easy way to do it in my mind and heart.

24.

A field is in shape of a trapezium whose parallel sides are 25m and 10m. The non parallel sides are 14m and 13m. Find the area of field?

Answer»

Answer:

3

dog's the same with an open-source and I think that it was not until you are looking to BUY a HOME run in the BOTTOM of a SINGLE entry was POSTED in a row in this is not an easy way to do it in my mind and heart.

Discussion

25.	What percentage of 4500 is 9000
Answer» Answer: 50% OF ANSER 4500-9000

25.

What percentage of 4500 is 9000

Answer»

Answer:

50% OF ANSER 4500-9000

Discussion

26.	Find the median of the following observation 15 40 25 16 28 32 36 42 16 19
Answer» Question: FIND the MEDIAN of the following observation 15,40,25,16,28,32,36,42.16.19. Answer: Median = 30 Step-by-step explanation: Median : The median is the middle most value of the given data. The given data is 15,40,25,16,28,32,36,42.16.19. There are 10 numbers in given data. Therefore, the middle values of the given data are 18 and 32 And if there 2 middle values in the given data then we should, do the sum of the two middle values / 2 Therefore, if we take the middle values as a and b then the formula will be, Median = ( a + b ) / 2 Then here the median will be = 28 + 32 / 2 = 60 / 2 = 30 Therefore, the median of the given data = 30 #ME TOO #MARK ME BRAINLIEST

26.

Find the median of the following observation 15 40 25 16 28 32 36 42 16 19

Answer»

Question:

FIND the MEDIAN of the following observation 15,40,25,16,28,32,36,42.16.19.

Answer:

Median = 30

Step-by-step explanation:

Median : The median is the middle most value of the given data.

The given data is 15,40,25,16,28,32,36,42.16.19.

There are 10 numbers in given data.

Therefore, the middle values of the given data are 18 and 32

And if there 2 middle values in the given data then we should,

do the sum of the two middle values / 2

Therefore, if we take the middle values as a and b then the formula will be,

Median = ( a + b ) / 2

Then here the median will be

= 28 + 32 / 2

= 60 / 2

= 30

Therefore, the median of the given data = 30

#ME TOO

#MARK ME BRAINLIEST

Discussion

27.	What is moment of inertia?
Answer» Answer: MOMENT of inertia ( ), also called "angular MASS" (kg·m2), is the inertia of a rotating BODY with respect to its rotation. It is a rotating body's resistance to angular acceleration or deceleration, equal to the product of the mass and the square of its perpendicular distance from the AXIS of rotation. Step-by-step EXPLANATION: Hope it's working

27.

What is moment of inertia?

Answer»

Answer:

MOMENT of inertia ( ), also called "angular MASS" (kg·m2), is the inertia of a rotating BODY with respect to its rotation. It is a rotating body's resistance to angular acceleration or deceleration, equal to the product of the mass and the square of its perpendicular distance from the AXIS of rotation.

Step-by-step EXPLANATION:

Hope it's working

Discussion

28.	17. The length and the breadth and the height of a room are 735 cm, 625 cm and 415 cm. Findthe largest scale measuring instrument which can measure all the three dimensions.
Answer» I HOPE this MAY HELP you

28.

17. The length and the breadth and the height of a room are 735 cm, 625 cm and 415 cm. Findthe largest scale measuring instrument which can measure all the three dimensions.

Answer»

I HOPE this MAY HELP you

Discussion

29.	Smallest number must be added to 450 to make
Answer» Answer: here is your answer Step-by-step explanation: 0 MUST be ADDED to 450 to MAKE a smallest number. THANK you

29.

Smallest number must be added to 450 to make

Answer»

Answer:

here is your answer

Step-by-step explanation:

0 MUST be ADDED to 450 to MAKE a smallest number. THANK you

Discussion

30.	Prameela painted the outer surface of a cabinet of measures 1m×2m×1.5m .find the surface area she cover if she painted all except the top and bottom of the cabinet?
Answer» l=1m b=2m h=1.5m LSA of cuboid=2h(l+b) =2×1.5(1+2) =3(3) =9m^2 mark me as BRAINLIEST

30.

Prameela painted the outer surface of a cabinet of measures 1m×2m×1.5m .find the surface area she cover if she painted all except the top and bottom of the cabinet?

Answer»

l=1m

b=2m

h=1.5m

LSA of cuboid=2h(l+b)

=2×1.5(1+2)

=3(3)

=9m^2

mark me as BRAINLIEST

Discussion

31.	Find mean of 11 even natural numbers find this answer fast pllllllllllzzzzzzzzzzz
Answer» Answer: Mean of 11 even natural numbers = 12 Step-by-step EXPLANATION: The first 11 even natural numbers are 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22 ; Mean formula is given by = Sum of all VALUES ÷ Total no. of OBSERVATION Mean = $\frac{2+4+6+8+10+12+14+16+18+20+22}{11}$ = $\frac{132}{11}$ = 12 Therefore, mean of first 11 even natural numbers is 12.

31.

Find mean of 11 even natural numbers find this answer fast pllllllllllzzzzzzzzzzz

Answer»

Answer:

Mean of 11 even natural numbers = 12

Step-by-step EXPLANATION:

The first 11 even natural numbers are 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22 ;

Mean formula is given by = Sum of all VALUES ÷ Total no. of OBSERVATION

Mean = $\frac{2+4+6+8+10+12+14+16+18+20+22}{11}$ = $\frac{132}{11}$ = 12

Therefore, mean of first 11 even natural numbers is 12.

Discussion

32.	if a is to B is equals to 4 is to 5 beast C is equals to 3 is to 4 C Studio is equals to 11 then a is to d
Answer» ANSWER: $\red { A : D } \green { = 33 : 5 }$ Step-by-step EXPLANATION: $Given \: \frac{A}{B} = \frac{4}{5}$ $\frac{B}{C} = \frac{3}{4}$ $and \: \frac{C}{D} = \frac{11}{1}$ $Now,\:\frac{A}{B} \times \frac{B}{C} \times \frac{C}{D} = \frac{4}{5} \times \frac{3}{4} \times \frac{11}{1}$ $\implies \frac{A}{D} = \frac{ 33}{5}$ THEREFORE., $\red { A : D } \green { = 33 : 5 }$ •••♪

32.

if a is to B is equals to 4 is to 5 beast C is equals to 3 is to 4 C Studio is equals to 11 then a is to d

Answer»

ANSWER:

$\red { A : D } \green { = 33 : 5 }$

Step-by-step EXPLANATION:

$Given \: \frac{A}{B} = \frac{4}{5}$

$\frac{B}{C} = \frac{3}{4}$

$and \: \frac{C}{D} = \frac{11}{1}$

$Now,\:\frac{A}{B} \times \frac{B}{C} \times \frac{C}{D} = \frac{4}{5} \times \frac{3}{4} \times \frac{11}{1}$

$\implies \frac{A}{D} = \frac{ 33}{5}$

THEREFORE.,

$\red { A : D } \green { = 33 : 5 }$

•••♪

Discussion

33.	The price of a car is £15400 before it is reduced buy 8%How much does it cost after the reduction?
Answer» Answer: 14168 Step-by-step EXPLANATION: it costs=15400-8/100×15400 =15400-1232 =14168

33.

The price of a car is £15400 before it is reduced buy 8%How much does it cost after the reduction?

Answer»

Answer:

14168

Step-by-step EXPLANATION:

it costs=15400-8/100×15400

=15400-1232

=14168

Discussion

34.	Find the volume of the following cylinder 7 cm 10 cm.
Answer» ANSWER: $\red { Volume \: of \: the \: cylinder }\green {=1540\: cm^{3}}$ Step-by-step EXPLANATION: $Given \: radius \:of \: the \: cylinder (r) = 7\:cm$ $Height(h) = 10\:cm$ $\boxed { \pink { Volume (V) = \pi r^{2} h }}$ $Volume = \frac{22}{7} \times 7^{2} \times 10 \\= 22 \times 7 \times 10 \\= 1540\: cm^{3}$ THEREFORE., $\red { Volume \: of \: the \: cylinder }\green {=1540\: cm^{3}}$ •••♪

34.

Find the volume of the following cylinder 7 cm 10 cm.

Answer»

ANSWER:

$\red { Volume \: of \: the \: cylinder }\green {=1540\: cm^{3}}$

Step-by-step EXPLANATION:

$Given \: radius \:of \: the \: cylinder (r) = 7\:cm$

$Height(h) = 10\:cm$

$\boxed { \pink { Volume (V) = \pi r^{2} h }}$

$Volume = \frac{22}{7} \times 7^{2} \times 10 \\= 22 \times 7 \times 10 \\= 1540\: cm^{3}$

THEREFORE.,

$\red { Volume \: of \: the \: cylinder }\green {=1540\: cm^{3}}$

•••♪

Discussion

35.	In the adjoining figure, PQRS is a parallelogram.Find x and y in cm
Answer» Answer:13 CM, 3 cm Step-by-step EXPLANATION: As each diagonal divide each other in 2 equal parts. PO=OR 20=y+7 20-7=y 13cm=y x+y=16 x+13=16 x=3 cm

35.

In the adjoining figure, PQRS is a parallelogram.Find x and y in cm

Answer»

Answer:13 CM, 3 cm

Step-by-step EXPLANATION:

As each diagonal divide each other in 2 equal parts.

PO=OR

20=y+7

20-7=y

13cm=y

x+y=16

x+13=16

x=3 cm

Discussion

36.	5x-7÷3x=2 find x please solve it
Answer» ANSWER: 5x-7÷3x=2 5x-7=6x -7=6x-5x -7=x please MARK as BRAINLIEST answer.

36.

5x-7÷3x=2 find x please solve it

Answer»

ANSWER:

5x-7÷3x=2

5x-7=6x

-7=6x-5x

-7=x

please MARK as BRAINLIEST answer.

Discussion

37.	Let me know this answer
Answer» ANSWER: SORRY I don't no this answer

37.

Let me know this answer

Answer»

ANSWER:

SORRY I don't no this answer

Discussion

38.	Answer me please...If u don't know then don't answer ...
Answer» Answer: Volume of ONE cube=1372÷4 =343 Side of cube=cube root of 343 =7 cm Hope it helps. PLEASE MARK as BRAINLIEST.

38.

Answer me please...If u don't know then don't answer ...

Answer»

Answer:

Volume of ONE cube=1372÷4

=343

Side of cube=cube root of 343

=7 cm

Hope it helps.

PLEASE MARK as BRAINLIEST.

Discussion

39.	Where will the hour hand of clock stop if it starts from 6 and turns though 2 right angles ?
Answer» ANSWER: the HOUR HAND will be at 12

39.

Where will the hour hand of clock stop if it starts from 6 and turns though 2 right angles ?

Answer»

ANSWER:

the HOUR HAND will be at 12

Discussion

40.	150
Answer» ANSWER: $27$ Step-by-step EXPLANATION: $150 \times {10}^{ - 3} \times 180 \\ = \frac{150 \times 180}{ {10}^{3} } \\ = \frac{150 \times 180}{1000} \\ = 15 \times 1.8 \\ = 27$

40.

150

Answer»

ANSWER:

$27$

Step-by-step EXPLANATION:

$150 \times {10}^{ - 3} \times 180 \\ = \frac{150 \times 180}{ {10}^{3} } \\ = \frac{150 \times 180}{1000} \\ = 15 \times 1.8 \\ = 27$

Discussion

41.	The mean salary of 20 workers is Rs.10.250. If the salary of office superintendentbied, the mean will increase by Rs.750. Find the salary of the office superintende
Answer» Question :- The mean salary of 20 workers is Rs.10,250. If the salary of office superintendent bied, the mean will increase by Rs.750. Find the salary of the office superintende . Answer :- Salary of office superintendent is ₹26,000 To Find :- → Salary of the office supernitende . SOLUTION :- Given that : Mean salary =₹ 10,250 Total NUMBER of workers = 20 mean increased =₹ 750 Now , we know that , $\to \sf \: mean \: \frac{sum \: of \: observations}{number \: of \: observations} \\ \\ \to \sf sum \: of \: obs. = mean \times no. \: of \: obs. \\ \\ \to \sf \: sum \: of \: observations = 10250 \times 20 \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 205000$ now ,salary of office superintendent is added HENCE , Number of observations = 21 LET, the salary of office superintendent is "y" . now, according to the question, → salary increased by ₹750 , hence , $\to \sf 10250 + 750 = \frac{sum \: of \: observations}{21} \\ \\ \to \sf 11000 = \frac{205000 + y}{21} \\ \\ \to \sf \: y + 205000 = 21 \times 11000 \\ \\ \to \sf y = 231000 - 205000 \\ \\ \to \boxed{\sf \: y =2 6000}$ hence ,salary of office superintendent is ₹26,000

41.

The mean salary of 20 workers is Rs.10.250. If the salary of office superintendentbied, the mean will increase by Rs.750. Find the salary of the office superintende

Answer»

Question :-

The mean salary of 20 workers is Rs.10,250. If the salary of office superintendent bied, the mean will increase by Rs.750. Find the salary of the office superintende .

Answer :-

Salary of office superintendent is ₹26,000

To Find :-

→ Salary of the office supernitende .

SOLUTION :-

Given that :

Mean salary =₹ 10,250

Total NUMBER of workers = 20

mean increased =₹ 750

Now ,

we know that ,

$\to \sf \: mean \: \frac{sum \: of \: observations}{number \: of \: observations} \\ \\ \to \sf sum \: of \: obs. = mean \times no. \: of \: obs. \\ \\ \to \sf \: sum \: of \: observations = 10250 \times 20 \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 205000$

now ,salary of office superintendent is added HENCE ,

Number of observations = 21

LET, the salary of office superintendent is "y" .

now, according to the question,

→ salary increased by ₹750 ,

hence ,

$\to \sf 10250 + 750 = \frac{sum \: of \: observations}{21} \\ \\ \to \sf 11000 = \frac{205000 + y}{21} \\ \\ \to \sf \: y + 205000 = 21 \times 11000 \\ \\ \to \sf y = 231000 - 205000 \\ \\ \to \boxed{\sf \: y =2 6000}$

hence ,salary of office superintendent is ₹26,000

Discussion

42.	(0.03)²*(0.000027)³
Answer» The ANSWER is 1.77 * 10^-17

42.

(0.03)²*(0.000027)³

Answer»

The ANSWER is 1.77 * 10^-17

Discussion

43.	If 12% of aequal, thenand 60% of 288a is
Answer» WRITE your QUESTION PROPERLY

Discussion

44.	Years is 45 rupees find the sum
Answer» ANSWER: what's this??????????

44.

Years is 45 rupees find the sum

Answer»

ANSWER:

what's this??????????

Discussion

45.	A=(set of prime less than 6)b=(set of prime factors of 30)then find A=B or not
Answer» I HOPE this MAY HELP you

45.

A=(set of prime less than 6)b=(set of prime factors of 30)then find A=B or not

Answer»

I HOPE this MAY HELP you

Discussion

46.	in the figure sides AB, BC, CA of triangle ABC are produced to points R,P,F respectively such that AB = BR,BC = CP and CA = AF prove that area of trianglePFR= 7 × area of triangle ABC
Answer» Step-by-step EXPLANATION: main X 72 both side this triangle is EQUAL to 7 into AREA of triangle ABC

46.

in the figure sides AB, BC, CA of triangle ABC are produced to points R,P,F respectively such that AB = BR,BC = CP and CA = AF prove that area of trianglePFR= 7 × area of triangle ABC

Answer»

Step-by-step EXPLANATION:

main X 72 both side this triangle is EQUAL to 7 into AREA of triangle ABC

Discussion

47.	angle subtended by an Arc at the centre is double the angle subtended by it at any point on the remaining part of the circle
Answer» ANSWER: YES it is CORRECT so what is your DOUBT in it

47.

angle subtended by an Arc at the centre is double the angle subtended by it at any point on the remaining part of the circle

Answer»

ANSWER: YES it is CORRECT so what is your DOUBT in it

Discussion

48.	in angle abc and angle xyz if angle is equal to angle X are acute angles such that cos A is equals to cos x then angle A is equal to angle x?
Answer» ANSWER: as a is EQUAL to the ANGLE X

48.

in angle abc and angle xyz if angle is equal to angle X are acute angles such that cos A is equals to cos x then angle A is equal to angle x?

Answer»

ANSWER:

as a is EQUAL to the ANGLE X

Discussion

49.	A box contains pairs of socks of two colours (black and white). I have out awhite sock. I pick out one more with my eyes closed. What is the probabilitywill make a pair?
Answer» Answer:1/3 Step-by-step EXPLANATION: TOTAL outcomes remaining=3 Required OUTCOME that will MAKE a pair=1 Therefore,the PROBABILITY that it will make a pair is 1/3.

49.

A box contains pairs of socks of two colours (black and white). I have out awhite sock. I pick out one more with my eyes closed. What is the probabilitywill make a pair?

Answer»

Answer:1/3

Step-by-step EXPLANATION:

TOTAL outcomes remaining=3

Required OUTCOME that will MAKE a pair=1

Therefore,the PROBABILITY that it will make a pair is

1/3.

Discussion

50.	Refer given and to prove from the image
Answer» ANSWER: There is no IMAGE in here....

50.

Refer given and to prove from the image

Answer»

ANSWER:

There is no IMAGE in here....

Discussion

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Step-by-step explanation:

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Answer please please.

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Please answer with explanation...

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28. Find the sum of first 51 terms of an AP whose second and third terms are 14 and 18respectively.Sobot

Find the median of the following data 1,6,7,9,4,8,13,19

Unit digit of (5197)^274

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What percentage of 4500 is 9000

Find the median of the following observation 15 40 25 16 28 32 36 42 16 19

What is moment of inertia?

17. The length and the breadth and the height of a room are 735 cm, 625 cm and 415 cm. Findthe largest scale measuring instrument which can measure all the three dimensions.

Smallest number must be added to 450 to make

Find mean of 11 even natural numbers find this answer fast pllllllllllzzzzzzzzzzz

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5x-7÷3x=2 find x please solve it

Let me know this answer

Answer me please...If u don't know then don't answer ...

Where will the hour hand of clock stop if it starts from 6 and turns though 2 right angles ?

150

The mean salary of 20 workers is Rs.10.250. If the salary of office superintendentbied, the mean will increase by Rs.750. Find the salary of the office superintende

(0.03)²*(0.000027)³

If 12% of aequal, thenand 60% of 288a is

Years is 45 rupees find the sum

in the figure sides AB, BC, CA of triangle ABC are produced to points R,P,F respectively such that AB = BR,BC = CP and CA = AF prove that area of trianglePFR= 7 × area of triangle ABC

angle subtended by an Arc at the centre is double the angle subtended by it at any point on the remaining part of the circle

in angle abc and angle xyz if angle is equal to angle X are acute angles such that cos A is equals to cos x then angle A is equal to angle x?

A box contains pairs of socks of two colours (black and white). I have out awhite sock. I pick out one more with my eyes closed. What is the probabilitywill make a pair?