332354 + Interview Questions in Secondary School in Math

1.	Two number are respectively 20% of 40% of a third number what percent is the first number of the second ?a) 50% b) 60% c) 75% d) 40% e) 20%
Answer» Step-by-step explanation: Two numbers are respectively 20% and 50% more than the 3rd number. What percent is the first of the second? Consider 3rd number be 100%. Then percent of 1st number to 2ND number =(120%/150%)×100=80%

1.

Two number are respectively 20% of 40% of a third number what percent is the first number of the second ?a) 50% b) 60% c) 75% d) 40% e) 20%

Answer»

Step-by-step explanation:

Two numbers are respectively 20% and 50% more than the 3rd number. What percent is the first of the second? Consider 3rd number be 100%.

Then percent of 1st number to 2ND number =(120%/150%)×100=80%

Discussion

2.	Find r, if 8 Pr = 336
Answer» ANSWER: hi hi hi hi hi hi hi hi hi hi hi hi hi hi hi hi hi hi hi hi hi hi hi hi hi hi hi kya KAR RAHE HO SAB?????

2.

Find r, if 8 Pr = 336

Answer»

ANSWER:

hi

kya KAR RAHE HO SAB?????

Discussion

3.	The profit earned on selling two articles is Rs. 80 less than the profit earned on selling three articles if 20% profit is earned on selling one article. What is the cost of an article?
Answer» Step-by-step EXPLANATION: This can be calculated 2 ways. If the PROFIT is 20% of revenue then the cost is Rs. 320 x=20% profit each 5x=sales price each [520%] 3x-2x=80 [The difference in profit is the constant value specified] Cost is (5–1)80 If the profit is 20% of cost of stock then the cost is Rs. 400 x=20% of cost x=80 [3x-2x=80] cost of stock=80*5 100%=400 Without DISAMBIGUATION, the correct ANSWER is Rs. 320 as the profit margin is used instead of the capital gain on the money invested in inventory.

3.

The profit earned on selling two articles is Rs. 80 less than the profit earned on selling three articles if 20% profit is earned on selling one article. What is the cost of an article?

Answer»

Step-by-step EXPLANATION:

This can be calculated 2 ways.

If the PROFIT is 20% of revenue then the cost is Rs. 320

x=20% profit each

5x=sales price each [5*20%]

3x-2x=80 [The difference in profit is the constant value specified]

Cost is (5–1)*80

If the profit is 20% of cost of stock then the cost is Rs. 400

x=20% of cost

x=80 [3x-2x=80]

cost of stock=80*5

100%=400

Without DISAMBIGUATION, the correct ANSWER is Rs. 320 as the profit margin is used instead of the capital gain on the money invested in inventory.

Discussion

4.	X= -7, y=3what x+y, xy, x2+y2+2xy calculate
Answer» ANSWER: x+y = -6 xy = -21 x2+y2+2xy = +56

4.

X= -7, y=3what x+y, xy, x2+y2+2xy calculate

Answer»

ANSWER:

x+y = -6

xy = -21

x2+y2+2xy = +56

Discussion

5.	Mathematics FinalTime - 2 hrsM.M. - 60• The work should be neat and clean.(8X1-B)Q1 Fil in the blanks :a) The additive Inverse of 12 isb) The coefficient of x in Sxyz isc) The predecessor of 35 isd) An expression having three terms is called ae) The sum of all the angles of a quadrilateralls1) Solve 5 - (-8)B) Each angle of an equilateral triangle measuresh) A quadrilateral having one and only one pair of parallel sides iscalledQ2 Write the following using literals, numbers and signs of basicoperations :(3 X 1 = 3)a) Three times a number added to 8 ls 20.b) The quotient of x by 18 is multiplied by y.c) One fourth of the sum of x and y.(2 X 2 = 4)03. Identify the like terms in the following:a) a^3b, 2b^3a, 2ab, 3ba43b) 2xy^21, x^2yz, 7xyz, Syzx^2
Answer» Answer: Q1 a) -12 b) 1 c) 34 d) trinomial e) 360 degrees 1) 13 B) 60 degrees h) Trapezium

5.

Mathematics FinalTime - 2 hrsM.M. - 60• The work should be neat and clean.(8X1-B)Q1 Fil in the blanks :a) The additive Inverse of 12 isb) The coefficient of x in Sxyz isc) The predecessor of 35 isd) An expression having three terms is called ae) The sum of all the angles of a quadrilateralls1) Solve 5 - (-8)B) Each angle of an equilateral triangle measuresh) A quadrilateral having one and only one pair of parallel sides iscalledQ2 Write the following using literals, numbers and signs of basicoperations :(3 X 1 = 3)a) Three times a number added to 8 ls 20.b) The quotient of x by 18 is multiplied by y.c) One fourth of the sum of x and y.(2 X 2 = 4)03. Identify the like terms in the following:a) a^3b, 2b^3a, 2ab, 3ba43b) 2xy^21, x^2yz, 7xyz, Syzx^2

Answer»

Answer:

Q1

a) -12

b) 1

c) 34

d) trinomial

e) 360 degrees

1) 13

B) 60 degrees

h) Trapezium

Discussion

6.	1022+ 1020Find the value of1020b
Answer» the ANSWER is 2042 hope this HELPS you

6.

1022+ 1020Find the value of1020b

Answer»

the ANSWER is 2042

hope this HELPS you

Discussion

7.	Sin² θ + cos² θ = cosec² θ - ?
Answer» ANSWER: i THINK its sec^2 THETA

7.

Sin² θ + cos² θ = cosec² θ - ?

Answer»

ANSWER:

i THINK its sec^2 THETA

Discussion

8.	Q. A dealer buys an article marked at Rs. 25000 on two successive discounts of first 20% and then 5%. He spends Rs. 1000 for its repair and then sellst for Rs. 25000. What is his gain or loss percent?PLZ anyone ans this qs....!!
Answer» PLEASE FIND the ATTACHED PHOTOGRAPH for your ANSWER

Discussion

9.	24.The measure of three angles of a triangle are in the ratio 5:3:1. Find the three anglesof the triangle?ples
Answer» Given: ✰ The MEASURE of three angles of a triangle are in the ratio 5:3:1. To find: ✠ The three angles of the triangle. Solution: Triangle: The three-sided closed figure is called triangle. Let's understand the concept first! First we will assume that the measure of three angles of a triangle are 5x, 3x and x respectively. Then, we will use of interior angle of a triangle. It states that the sum of the interior angle of a triangle is ALWAYS equal to 180°. Thus, forming an equation and doing the required CALCULATIONS, we will find out the VALUE of x. After that we will substitute the value of x in the respective measure of angles which we have assumed to GET the final angles of a triangle. Let's find out...! Let the angles of the triangle be 5x, 3x and x respectively. Sum of interior angles of a triangle is always 180° ➤ 5x + 3x + x = 180 ➤ 8x + x = 180 ➤ 9x = 180 ➤ x = 180/9 ➤ x = 20° Now, ➛ First angle = 5x ➛ First angle = 5 × 20 ➛ First angle = 100° ➛ Second angle = 3x ➛ Second angle = 3 × 20 ➛ Second angle = 60 ➛ Third angle = x ➛ Third angle = 20° ∴ The measure three angles of the triangle are 100°, 60° and 20° respectively. _______________________________

9.

24.The measure of three angles of a triangle are in the ratio 5:3:1. Find the three anglesof the triangle?ples

Answer»

Given:

✰ The MEASURE of three angles of a triangle are in the ratio 5:3:1.

To find:

✠ The three angles of the triangle.

Solution:

Triangle:

The three-sided closed figure is called triangle.

Let's understand the concept first! First we will assume that the measure of three angles of a triangle are 5x, 3x and x respectively. Then, we will use of interior angle of a triangle. It states that the sum of the interior angle of a triangle is ALWAYS equal to 180°. Thus, forming an equation and doing the required CALCULATIONS, we will find out the VALUE of x. After that we will substitute the value of x in the respective measure of angles which we have assumed to GET the final angles of a triangle.

Let's find out...!

Let the angles of the triangle be 5x, 3x and x respectively.

Sum of interior angles of a triangle is always 180°

➤ 5x + 3x + x = 180

➤ 8x + x = 180

➤ 9x = 180

➤ x = 180/9

➤ x = 20°

Now,

➛ First angle = 5x

➛ First angle = 5 × 20

➛ First angle = 100°

➛ Second angle = 3x

➛ Second angle = 3 × 20

➛ Second angle = 60

➛ Third angle = x

➛ Third angle = 20°

∴ The measure three angles of the triangle are 100°, 60° and 20° respectively.

_______________________________

Discussion

10.	Please answer this if ypu know only
Answer» Solution Given :- Two equal SIDE of an isosceles triangle are 6 m less than the third side . perimeter of isosceles triangle = 45 m Find :- Length of its SIDES Explanation We Know, In ∆ABC isosceles triangle , It have two equal side and a different BASE . Let, According to question Base of isosceles triangle = x m Two equal side of triangle be = (x - 6 )m Using Formula $\dag\boxed{\underline{\tt{\blue{\: Perimeter_{isosceles\: triangle}\:=\:(2a+b)}}}}$ Here, 2a = 2(x - 6) b = x So, KEEP all above Values ==> perimeter of isosceles triangle = 2x - 12 + x ==> 45 = 3x - 12 ==> 3x = 45 + 12 ==> 3x = 57 ==> x = 57/3 ==> x = 19 Hence Base will be of isosceles triangle = 19m Two equal side of isosceles triangle will be = (x - 6) = (19 - 6) = (19 - 6) = 13m _________________

10.

Please answer this if ypu know only

Answer»

Solution

Given :-

Two equal SIDE of an isosceles triangle are 6 m less than the third side .
perimeter of isosceles triangle = 45 m

Find :-

Length of its SIDES

Explanation

We Know,

In ∆ABC isosceles triangle ,

It have two equal side and a different BASE .

Let,

According to question

Base of isosceles triangle = x m
Two equal side of triangle be = (x - 6 )m

Using Formula

$\dag\boxed{\underline{\tt{\blue{\: Perimeter_{isosceles\: triangle}\:=\:(2a+b)}}}}$

Here,

2a = 2(x - 6)
b = x

So, KEEP all above Values

==> perimeter of isosceles triangle = 2x - 12 + x

==> 45 = 3x - 12

==> 3x = 45 + 12

==> 3x = 57

==> x = 57/3

==> x = 19

Hence

Base will be of isosceles triangle = 19m
Two equal side of isosceles triangle will be = (x - 6) = (19 - 6) = (19 - 6) = 13m

_________________

Discussion

11.	Divide mention Quotient and Reminder523 ÷ 16
Answer» ANSWER: QUOTIENT= 32 reminder= 11

11.

Divide mention Quotient and Reminder523 ÷ 16

Answer»

ANSWER:

QUOTIENT= 32

reminder= 11

Discussion

12.	The solution of the equation 3 + 2(P -7) = 9 is
Answer» <P>ANSWER: the VALUE of P is EQUALS to 10

12.

The solution of the equation 3 + 2(P -7) = 9 is

Answer»

<P>ANSWER:

the VALUE of P is EQUALS to 10

Discussion

13.	Is (0, 2) the solution to the equation 5x + 3y = 6? Decide that.
Answer» Step-by-step explanation: 5(0)+3(2)=6 0+6=6 =6 final answer 6

13.

Is (0, 2) the solution to the equation 5x + 3y = 6? Decide that.

Answer»

Step-by-step explanation:

5(0)+3(2)=6

0+6=6

=6

final answer 6

Discussion

14.	Which of the following statement is not true for Binomial distribution?A.The random experiment is performed repeatedly a finite number of timesB.The outcomes of the random experiment (trlal) results in the dichotomous classification of events.C.All the trails are dependent.D.The probability of success in any trail is p and is constant for each trail.
Answer» ANSWER: I THINK A this is a RIGHT answer

14.

Which of the following statement is not true for Binomial distribution?A.The random experiment is performed repeatedly a finite number of timesB.The outcomes of the random experiment (trlal) results in the dichotomous classification of events.C.All the trails are dependent.D.The probability of success in any trail is p and is constant for each trail.

Answer»

ANSWER:

I THINK A this is a RIGHT answer

Discussion

15.	Simplify (-1/4)⁴ ÷ (-1/2)⁴
Answer» ANSWER: PLEASE MARK me as a BRAINLIST

15.

Simplify (-1/4)⁴ ÷ (-1/2)⁴

Answer»

ANSWER:

PLEASE MARK me as a BRAINLIST

Discussion

16.	Ball pens are sold in packs of 3 or 6 to a pack. If Mr. Ramos bought 30 ball pens, how many of each pack did he buy?
Answer» ANSWER: PLEASE MARK me as a BRAINLIST ....

16.

Ball pens are sold in packs of 3 or 6 to a pack. If Mr. Ramos bought 30 ball pens, how many of each pack did he buy?

Answer»

ANSWER:

PLEASE MARK me as a BRAINLIST ....

Discussion

17.	Pls answer this if you know only
Answer» ANSWER: 13 and 13 and 19 Step-by-step explanation: 13 is the answer for above question =13+13+19=45

17.

Pls answer this if you know only

Answer»

ANSWER:

13 and 13 and 19

Step-by-step explanation:

13 is the answer for above question

=13+13+19=45

Discussion

18.	Given that p (A) =1/3, p (B) = 14, P (A/B) =1/6, the probability P (B/A) is equal to
Answer» ANSWER: hwkwwijwg2209 baaaaaal

18.

Given that p (A) =1/3, p (B) = 14, P (A/B) =1/6, the probability P (B/A) is equal to

Answer»

ANSWER:

hwkwwijwg2209 baaaaaal

Discussion

19.	Solve the equation 5a = 30 is a
Answer» Answer: 5a =30 a =30/5 a =6 ANS. *HOPE* *this* *will* *HELP* *you*

19.

Solve the equation 5a = 30 is a

Answer»

Answer:

5a =30

a =30/5

a =6 ANS.

HOPE this will HELP you

Discussion

20.	Q.17 Simplify and express each of the following in exponential form:i)54 x 75 x 298 X 49 X 52ii)154 x 18333 x 52 x 122
Answer» ANSWER: i) 54 x 75 x 29 8 X 49 X 52=2394100800 ii) 154 x 183 33 x 52 x 122=5899958064

20.

Q.17 Simplify and express each of the following in exponential form:i)54 x 75 x 298 X 49 X 52ii)154 x 18333 x 52 x 122

Answer»

ANSWER:

i)

54 x 75 x 29

8 X 49 X 52=2394100800

ii)

154 x 183

33 x 52 x 122=5899958064

Discussion

21.	The probability of scoring 70 marks in 100 mark test is___
Answer» ANSWER: obiuosly 1 Step-by-step EXPLANATION: bcause...70 will COME only ONE time 1/100

21.

The probability of scoring 70 marks in 100 mark test is___

Answer»

ANSWER:

obiuosly 1

Step-by-step EXPLANATION:

bcause...70 will COME only ONE time

1/100

Discussion

22.	द सम ऑफ फर्स्ट एंड टर्न ऑफ ए पी ए टी ई एन ए स्क्वायर प्लस फॉर एंड फाइंड द कैप्टन ऑफ दिस एचपी
Answer» WRITE in ENGLISH not in Hinglish (hindi+english)

Discussion

23.	Just for a little Pop Quiz quiz here is question
Answer» The ANSWER will be 5. Because W = 18/2 = 9 So, 9+ m = 14 or m = 14-9 = 5

23.

Just for a little Pop Quiz quiz here is question

Answer»

The ANSWER will be 5.

Because W = 18/2 = 9

So, 9+ m = 14

or m = 14-9 = 5

Discussion

24.	Ms. Prajakta carns Rupees 2,40,000/, Per Annum. She spends Rupees 1 Lakh, Per Annum, on Herself. The 181 Market Rate of Interest is 7%, Calculate Ms. Prajakta's Life Assurance Amount, through the Human Life Value (H.L.V.) Method.
Answer» Step-by-step EXPLANATION: NS I WANT to SEND yourom you

24.

Ms. Prajakta carns Rupees 2,40,000/, Per Annum. She spends Rupees 1 Lakh, Per Annum, on Herself. The 181 Market Rate of Interest is 7%, Calculate Ms. Prajakta's Life Assurance Amount, through the Human Life Value (H.L.V.) Method.

Answer»

Step-by-step EXPLANATION:

NS I WANT to SEND yourom you

Discussion

25.	व्हाट इज द नेक्स्ट टाइम इन द सीरीज ऑफ 25,31,37,46,
Answer» HI FRIEND how are you? GOOD EVENING

25.

व्हाट इज द नेक्स्ट टाइम इन द सीरीज ऑफ 25,31,37,46,

Answer»

HI FRIEND how are you?

GOOD EVENING

Discussion

26.	Given that in a right triangle the length of a leg of the right angle is 11 and the lengths of the other two sides are both positive integers. The perimeter of the triangle is
Answer» ANSWER: TRY it yourself Step-by-step EXPLANATION: PREFER TO YOUR BOOK

26.

Given that in a right triangle the length of a leg of the right angle is 11 and the lengths of the other two sides are both positive integers. The perimeter of the triangle is

Answer»

ANSWER:

TRY it yourself

Step-by-step EXPLANATION:

PREFER TO YOUR BOOK

Discussion

27.	List two rational number -2 and -1
Answer» Answer: RATIONAL numbers are dense because any interval, no matter how small its length, contains at LEAST one rational number. Scientific AmericanSep 8, 2019 Even though most numbers—in a sense, 100% of them—are irrational, humans are strangely obsessed with rational numbers. Scientific AmericanMay 5, 2019 One of the motivating questions in that field is when there are whole number or rational number solutions to polynomial equations. Scientific AmericanSep 3, 2018 “I’m hopeful that we’ll see a more rational number going forward and if it is more rational, then I think we’ll be able MEET the standard,” he SAID.

27.

List two rational number -2 and -1

Answer»

Answer:

RATIONAL numbers are dense because any interval, no matter how small its length, contains at LEAST one rational number.

Scientific AmericanSep 8, 2019

Even though most numbers—in a sense, 100% of them—are irrational, humans are strangely obsessed with rational numbers.

Scientific AmericanMay 5, 2019

One of the motivating questions in that field is when there are whole number or rational number solutions to polynomial equations.

Scientific AmericanSep 3, 2018

“I’m hopeful that we’ll see a more rational number going forward and if it is more rational, then I think we’ll be able MEET the standard,” he SAID.

Discussion

28.	V) A can do a pipe of work in 18 days and Bcan do same work in 24 days, in howmany days can they complete it, if they do together?
Answer» Step-by-step explanation: 72/7 is the ANSWER for above QUESTION

28.

V) A can do a pipe of work in 18 days and Bcan do same work in 24 days, in howmany days can they complete it, if they do together?

Answer»

Step-by-step explanation:

72/7 is the ANSWER for above QUESTION

Discussion

29.	In a circle of diameter 56 cm, an arc subtends an angle of 60° at the centre, then what will be the length of arc.
Answer» Answer: Step-by-step EXPLANATION: DIAMETER of circle = 42cm angle substracted by arc = 60 degree = pie /3 now , d = arc/radius (length ) so , pie / 3 = length of arc / 21cm pie/3 * 21 = length of arc [ 3 WOULD CUT 21 BY 7] = length of arc is 7 pie CM [ ANSWER]

29.

In a circle of diameter 56 cm, an arc subtends an angle of 60° at the centre, then what will be the length of arc.

Answer»

Answer:

Step-by-step EXPLANATION:

DIAMETER of circle = 42cm

angle substracted by arc = 60 degree = pie /3

now , d = arc/radius (length )

so , pie / 3 = length of arc / 21cm

pie/3 * 21 = length of arc

[ 3 WOULD CUT 21 BY 7]

= length of arc is 7 pie CM [ ANSWER]

Discussion

30.	Find the surface area of a cylinder whose diameter is 14 cm and height is 25 cm
Answer» ANSWER: i don't KNOW the answer OK MATE by LOVE you all

30.

Find the surface area of a cylinder whose diameter is 14 cm and height is 25 cm

Answer»

ANSWER:

i don't KNOW the answer OK MATE by LOVE you all

Discussion

31.	111) सिद्ध कीजिए कि 1+++52.523. 53111[5+Il42.423.48
Answer» ANSWER: cjjfjfgdhdhrhhrdjdhdjdjghf

31.

111) सिद्ध कीजिए कि 1+++52.523. 53111[5+Il42.423.48

Answer»

ANSWER:

cjjfjfgdhdhrhhrdjdhdjdjghf

Discussion

32.	Prove that 2AB² = 2AC² + 2BC²
Answer» ANSWER: aaaaaaaaaaaaaaaaaaaaaaa

32.

Prove that 2AB² = 2AC² + 2BC²

Answer»

ANSWER:

aaaaaaaaaaaaaaaaaaaaaaa

Discussion

33.	Convert to percentage
Answer» MATHEMATICALLY APPROVED ANSWER is ✔☸ 30=37.5% 80

33.

Convert to percentage

Answer»

MATHEMATICALLY APPROVED ANSWER is ✔☸

30=37.5%

80

Discussion

34.	Solve the equation 3(4p-5)+5(6p-4)=27
Answer» ANSWER: SEE ANS in the FORM of IMAGE.

34.

Solve the equation 3(4p-5)+5(6p-4)=27

Answer»

ANSWER:

SEE ANS in the FORM of IMAGE.

Discussion

35.	Q. Long answer type questions:( any 3)The weights (in kg) of 40 children in a locality are given below:10.14.15,28,12,15,16,18,32,40,56,12,15,25,32,35,42,45,46,52,18,19,13,18,35,39,48.46.47.52.55,56,57,58,18,15,19,15,16,18Prepare a grouped frequency distribution table and answer the following:a) What is the class mark of third class interval?b) Which class has the maximum weight?
Answer» ANSWER: SORRY am not UNDERSTAND this QUESTION

35.

Q. Long answer type questions:( any 3)The weights (in kg) of 40 children in a locality are given below:10.14.15,28,12,15,16,18,32,40,56,12,15,25,32,35,42,45,46,52,18,19,13,18,35,39,48.46.47.52.55,56,57,58,18,15,19,15,16,18Prepare a grouped frequency distribution table and answer the following:a) What is the class mark of third class interval?b) Which class has the maximum weight?

Answer»

ANSWER:

SORRY am not UNDERSTAND this QUESTION

Discussion

36.	A) Ram invested a certain amount of money for 3 years at 8% per annum. The simpleinterest earned by him is half the compound interest on 34,000 for 2 years at 10% perannum. Find the simple interest earned by Ram.
Answer» Answer: With COMPOUND interest, the interest that you EARN increases with the increase in your INVESTMENT (monthly/quarterly/semi-annual/or annual investment plus the interest that you are earning on this investment). This calculator will help you calculate the worth of your investment after a SET number of monthly INVESTMENTS or even a single, initial investment, based on the interest accrued on the invested amount.

36.

A) Ram invested a certain amount of money for 3 years at 8% per annum. The simpleinterest earned by him is half the compound interest on 34,000 for 2 years at 10% perannum. Find the simple interest earned by Ram.

Answer»

Answer:

With COMPOUND interest, the interest that you EARN increases with the increase in your INVESTMENT (monthly/quarterly/semi-annual/or annual investment plus the interest that you are earning on this investment). This calculator will help you calculate the worth of your investment after a SET number of monthly INVESTMENTS or even a single, initial investment, based on the interest accrued on the invested amount.

Discussion

37.	बिंदू (-3, 4) चे आरंभबिंदू पासूनचे अंतरआहे.P)5
Answer» *ZINDAGI* NA *MILEGI* *donara*

Discussion

38.	Find the value of (x+3) (x+3)
Answer» ANSWER: it's your ANSWERS MAM Step-by-step EXPLANATION: x²+3x+3x+9 x²+6x+9

38.

Find the value of (x+3) (x+3)

Answer»

ANSWER:

it's your ANSWERS MAM

Step-by-step EXPLANATION:

x²+3x+3x+9

x²+6x+9

Discussion

39.	The value of a flat constructed at a cost of Rs. 1000000 is depreciating at a rate of 10% perannum. Its value after 3 years of construction will be:
Answer» Step-by-step EXPLANATION: PRINCIPAL = RS : 10 , 000 rate = 10 % TIME = 3 years therefore , p ( 1 - r / 100 ) to the POWER 3 = 10 , 000 ( 1- 10 / 100 to the power 3 = 10 , 000 × 90 × 90 × 90 / 100 × 100 × 100 = RS : 7290 So the answer is 7290

39.

The value of a flat constructed at a cost of Rs. 1000000 is depreciating at a rate of 10% perannum. Its value after 3 years of construction will be:

Answer»

Step-by-step EXPLANATION:

PRINCIPAL = RS : 10 , 000

rate = 10 %

TIME = 3 years

therefore , p ( 1 - r / 100 ) to the POWER 3

= 10 , 000 ( 1- 10 / 100 to the power 3

= 10 , 000 × 90 × 90 × 90 / 100 × 100 × 100

= RS : 7290

So the answer is 7290

Discussion

40.	The cost of 15 kgs of sugar is 382.50, what is the cost of 20 kgs of sugar?
Answer» Answer: ₹510 Step-by-step EXPLANATION: Cost of 15 KG SUGAR = ₹382.50 Cost of 01 kg sugar = ₹382.50 ÷ 15 = ₹25.5 Cost of 20 kg sugar = ₹25.5 × 20 = ₹510

40.

The cost of 15 kgs of sugar is 382.50, what is the cost of 20 kgs of sugar?

Answer»

Answer:

₹510

Step-by-step EXPLANATION:

Cost of 15 KG SUGAR = ₹382.50

Cost of 01 kg sugar = ₹382.50 ÷ 15

= ₹25.5

Cost of 20 kg sugar = ₹25.5 × 20

= ₹510

Discussion

41.	If 3p-7=0, 3q=8, then find the value of 2p-(q+1)
Answer» Answer: 1 Step-by-step explanation: 3p-7=0 p=7/3 3q=8 q=8/3 2p-(q+1) 2×7/3-(8/3+1) 14/3-(8+3/3) 14/3-11/3 3/3 1

41.

If 3p-7=0, 3q=8, then find the value of 2p-(q+1)

Answer»

Answer:

1

Step-by-step explanation:

3p-7=0

p=7/3

3q=8

q=8/3

2p-(q+1)

2×7/3-(8/3+1)

14/3-(8+3/3)

14/3-11/3

3/3

1

Discussion

42.	What number should be multiplied by 8 to give out 10000
Answer» Answer: 1250 Step-by-step EXPLANATION: PLZ MARK me BRAINLIST

42.

What number should be multiplied by 8 to give out 10000

Answer»

Answer:

1250

Step-by-step EXPLANATION:

PLZ MARK me BRAINLIST

Discussion

43.	If an observation in a series is negative its G.M. will
Answer» ANSWER: same or POSITIVE hkhf SHRUNKEN K McCulloch

43.

If an observation in a series is negative its G.M. will

Answer»

ANSWER:

same or POSITIVE hkhf SHRUNKEN K McCulloch

Discussion

44.	in a distribution the difference of the lower and upper quartiles is 15 and their sum is 35 the median is 20 then coefficient of skewness is
Answer» $\begin{gathered}\begin{gathered}\bf \:<klux>GIVEN</klux> - \begin{cases} &\sf{Q_{3} - Q_{1} = 15} \\ &\sf{Q_{3} + Q_{1} = 35}\\ &\sf{median \: Q_{2} \: or \: M \: = 20} \end{cases}\end{gathered}\end{gathered}$ $\begin{gathered}\begin{gathered}\bf \: To\:find - \begin{cases} &\sf{coefficient \: of \: skewness} \end{cases}\end{gathered}\end{gathered}$ $\begin{gathered}\Large{\bold{{\underline{Formula \: Used - }}}} \end{gathered}$ $\sf \: Coefficient \: of \: skewness, S_{k} = \dfrac{Q_{3} + Q_{1} - 2M}{Q_{3} - Q_{1}}$ where, $\: \: \: \: \: \: \: \: \bull \sf \: Q_{1} = lower \: quartile$ $\: \: \: \: \: \: \: \: \bull \sf \: Q_{3} = upper \: quartile$ $\: \: \: \: \: \: \: \: \bull \sf \: Q_{2} \: or \: M= median$ $\large\underline{\bold{Solution-}}$ Given that $\: \: \: \: \: \: \: \: \bull \sf \: Q_{3} + Q_{1} = 35$ $\: \: \: \: \: \: \: \: \bull \sf \: Q_{3} - Q_{1} = 15$ $\: \: \: \: \: \: \: \: \bull \sf \: M = 20$ Now, $\sf \: Coefficient \: of \: skewness, S_{k} = \dfrac{Q_{3} + Q_{1} - 2M}{Q_{3} - Q_{1}}$ On substituting all the values, we get $\sf \: Coefficient \: of \: skewness, S_{k} = \dfrac{35 - 2 \times 20}{15}$ $\sf \: Coefficient \: of \: skewness, S_{k} = \dfrac{35 - 40}{15}$ $\sf \: Coefficient \: of \: skewness, S_{k} = - \: \dfrac{5}{15}$ $\sf \: Coefficient \: of \: skewness, S_{k} = - \: \dfrac{1}{3}$ Additional Information 1. Pearson’s Coefficient of Skewness USING the mode. The formula is: $\boxed{ \sf{Coefficient \: of \: skewness, S_{k} = \dfrac{mean - mode}{standard \: deviation} }}$ 2. Pearson’s Coefficient of Skewness using the median. The formula is: $\boxed{ \sf{Coefficient \: of \: skewness, S_{k} = \dfrac{3(mean - median)}{standard \: deviation} }}$ 3. Properties of Skewness :- The direction of skewness is given by the sign. The coefficient COMPARES the sample distribution with a normal distribution. The larger the value, the larger the distribution differs from a normal distribution. A value of ZERO means no skewness at all. A large negative value means the distribution is negatively skewed. A large positive value means the distribution is positively skewed.

44.

in a distribution the difference of the lower and upper quartiles is 15 and their sum is 35 the median is 20 then coefficient of skewness is

Answer»

$\begin{gathered}\begin{gathered}\bf \:<klux>GIVEN</klux> - \begin{cases} &\sf{Q_{3} - Q_{1} = 15} \\ &\sf{Q_{3} + Q_{1} = 35}\\ &\sf{median \: Q_{2} \: or \: M \: = 20} \end{cases}\end{gathered}\end{gathered}$

$\begin{gathered}\begin{gathered}\bf \: To\:find - \begin{cases} &\sf{coefficient \: of \: skewness} \end{cases}\end{gathered}\end{gathered}$

$\begin{gathered}\Large{\bold{{\underline{Formula \: Used - }}}} \end{gathered}$

$\sf \: Coefficient \: of \: skewness, S_{k} = \dfrac{Q_{3} + Q_{1} - 2M}{Q_{3} - Q_{1}}$

where,

$\: \: \: \: \: \: \: \: \bull \sf \: Q_{1} = lower \: quartile$

$\: \: \: \: \: \: \: \: \bull \sf \: Q_{3} = upper \: quartile$

$\: \: \: \: \: \: \: \: \bull \sf \: Q_{2} \: or \: M= median$

$\large\underline{\bold{Solution-}}$

Given that

$\: \: \: \: \: \: \: \: \bull \sf \: Q_{3} + Q_{1} = 35$

$\: \: \: \: \: \: \: \: \bull \sf \: Q_{3} - Q_{1} = 15$

$\: \: \: \: \: \: \: \: \bull \sf \: M = 20$

Now,

$\sf \: Coefficient \: of \: skewness, S_{k} = \dfrac{Q_{3} + Q_{1} - 2M}{Q_{3} - Q_{1}}$

On substituting all the values, we get

$\sf \: Coefficient \: of \: skewness, S_{k} = \dfrac{35 - 2 \times 20}{15}$

$\sf \: Coefficient \: of \: skewness, S_{k} = \dfrac{35 - 40}{15}$

$\sf \: Coefficient \: of \: skewness, S_{k} = - \: \dfrac{5}{15}$

$\sf \: Coefficient \: of \: skewness, S_{k} = - \: \dfrac{1}{3}$

Additional Information

1. Pearson’s Coefficient of Skewness USING the mode. The formula is:

$\boxed{ \sf{Coefficient \: of \: skewness, S_{k} = \dfrac{mean - mode}{standard \: deviation} }}$

2. Pearson’s Coefficient of Skewness using the median. The formula is:

$\boxed{ \sf{Coefficient \: of \: skewness, S_{k} = \dfrac{3(mean - median)}{standard \: deviation} }}$

3. Properties of Skewness :-

The direction of skewness is given by the sign.

The coefficient COMPARES the sample distribution with a normal distribution. The larger the value, the larger the distribution differs from a normal distribution.

A value of ZERO means no skewness at all.

A large negative value means the distribution is negatively skewed.

A large positive value means the distribution is positively skewed.

Discussion

45.	Findthelengthofthechord
Answer» ANSWER: PAHLE PURA QUESTION LIKHO

45.

Findthelengthofthechord

Answer»

ANSWER:

PAHLE PURA QUESTION LIKHO

Discussion

46.	Find the value of p (X)= 5x-2x²+1 at X = -1
Answer» HOPE you FOUND it HELPFUL

46.

Find the value of p (X)= 5x-2x²+1 at X = -1

Answer»

HOPE you FOUND it HELPFUL

Discussion

47.	Hare?what is the last number offacespolynehe dron can
Answer» Answer: 5 Step-by-step EXPLANATION: Because YES it has it has 5 FACES

47.

Hare?what is the last number offacespolynehe dron can

Answer»

Answer:

5

Step-by-step EXPLANATION:

Because YES it has it has 5 FACES

Discussion

48.	Fill in the blanks.5) If factor of x²+2x - mx - 18 is x + 2 then m = ________
Answer» ANSWER: LET x+2=0 x=-2 let x2+2x-mx-18=0 -2×-2+2×-2-m×-2-18=0 4-4+2m-18=0 2m-18=0 2m=18 m=18/2 m=9

48.

Fill in the blanks.5) If factor of x²+2x - mx - 18 is x + 2 then m = ________

Answer»

ANSWER:

LET x+2=0

x=-2

let x2+2x-mx-18=0

-2×-2+2×-2-m×-2-18=0

4-4+2m-18=0

2m-18=0

2m=18

m=18/2

m=9

Discussion

49.	-If polynomials (2x²+ 2] is divided(x+2)
Answer» ANSWER: I don't KNOW Step-by-step EXPLANATION: I don't know

49.

-If polynomials (2x²+ 2] is divided(x+2)

Answer»

ANSWER:

I don't KNOW

Step-by-step EXPLANATION:

I don't know

Discussion

50.	1-cosecent /1+cosecent - 1+ sin /1-sin=1
Answer» ANSWER: PLEASE ASK a GOOD QUESTION

50.

1-cosecent /1+cosecent - 1+ sin /1-sin=1

Answer»

ANSWER:

PLEASE ASK a GOOD QUESTION

Discussion

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