A survey was conducted on 50 persons of a society -Maths 9th

A survey was conducted on 50 persons of a society -Maths 9th
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A survey conducted by an organization -Maths 9th

Description : A survey conducted by an organization -Maths 9th

Last Answer : Solution :- (i) (ii) The major cause of women's ill health and death worldwide is reproductive health conditions.

A survey was conducted in a locality regarding -Maths 9th

Description : A survey was conducted in a locality regarding -Maths 9th

Last Answer : Number of pure vegetarians = 175 ∴ Number of non-vegetarians = 450 - 175 = 275 Probability of a person being non-vegetarian = 275/450 = 11/18.

In a society, the number of persons using CNG -Maths 9th

Description : In a society, the number of persons using CNG -Maths 9th

Last Answer : x + 15 = 25 ⇒ x + 15 - 15 = 25 - 15 (Using Euclid's third axiom) ⇒ x = 10 Environmental care, responsible citizens, futuristic.

A study was conducted to find out the concentration -Maths 9th

Description : A study was conducted to find out the concentration -Maths 9th

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In a survey of 364 children aged 19-36 months, it was found that 91 liked to eat potato chips. -Maths 9th

Description : In a survey of 364 children aged 19-36 months, it was found that 91 liked to eat potato chips. -Maths 9th

Last Answer : Total children = 364 Number of children like potato chips = 91 Number of children do not like potato chips = 364 – 91 = 273 273 Required probability = 273 / 364 =0.75

In a survey of 364 children aged 19-36 months, it was found that 91 liked to eat potato chips. -Maths 9th

Description : In a survey of 364 children aged 19-36 months, it was found that 91 liked to eat potato chips. -Maths 9th

Last Answer : Total children = 364 Number of children like potato chips = 91 Number of children do not like potato chips = 364 – 91 = 273 273 Required probability = 273 / 364 =0.75

In a survey of 364 children aged 19-36 months, it was found that 91 liked to eat potato chips. -Maths 9th

Description : In a survey of 364 children aged 19-36 months, it was found that 91 liked to eat potato chips. -Maths 9th

Last Answer : NEED ANSWER

In a survey of 364 children aged 19-36 months, it was found that 91 liked to eat potato chips. -Maths 9th

Description : In a survey of 364 children aged 19-36 months, it was found that 91 liked to eat potato chips. -Maths 9th

Last Answer : (c) Total number of survey children's age from 19-36 months, n(S) = 364 In those of them 91 out of them liked to eat potato chips. ∴ Number of children who do not like to eat potato chips, n(E) = ... S) = 273/364 = 0.75 Hence, the probability that he/she does not like to eat potato chips is 0.75.

In a survey of 364 children aged 19-36 months, -Maths 9th

Description : In a survey of 364 children aged 19-36 months, -Maths 9th

Last Answer : Children who do not like potato chips = 364 - 91 = 273 P (a child does not like potato chips) = 273/364 = 0.75

In a survey of 364 children aged 20-40 months, -Maths 9th

Description : In a survey of 364 children aged 20-40 months, -Maths 9th

Last Answer : Number of children = 364 Number of children not like to eat potato chips = 364 - 91 = 273. The required probability = 273/364 = 0.75

A recent survey found that the ages of workers in a factory are distributed as follows: -Maths 9th

Description : A recent survey found that the ages of workers in a factory are distributed as follows: -Maths 9th

Last Answer : Total number of workers = 38 + 27 + 86 + 46 + 3 = 200 (i) P (person is 40 years or more) = P (Person having age 40 to 49 years) + P (person having age 50 to 59 years) + P (person having age 60 and ... 40 to 19 years) + P (person having age 50 to 59 years) = 86/200 + 46/200 = 132/200 = 0.66

In a survey, it was found that 9 out of every 11 households -Maths 9th

Description : In a survey, it was found that 9 out of every 11 households -Maths 9th

Last Answer : 2/11 = 0.18(recurring), Non terminating repeating. People are becoming more social, helpful, cooperative and caring.

There are 10 persons who are to be seated around a circular table. Find the probability that two particular persons will always sit together. -Maths 9th

Description : There are 10 persons who are to be seated around a circular table. Find the probability that two particular persons will always sit together. -Maths 9th

Last Answer : Total number of ways in which 10 person can sit around a circular table = 9! (∵ We shall keep one place fixed and the rest of the 9 places will be filled in (9 8 7 6 5 4 3 2 1) ways asthere is ... probability = \(rac{2 imes8!}{9!}\) = \(rac{2 imes8!}{9 imes8!}\) = \(rac{2}{9}.\)

In how many ways can a committee of five persons be formed out of 8 members when a particular member is taken every time? -Maths 9th

Description : In how many ways can a committee of five persons be formed out of 8 members when a particular member is taken every time? -Maths 9th

Last Answer : ∴Required number of ways = 7C4 = 7!

A committee of 5 persons is to be formed out of 6 gents and 4 ladies. In how many ways can this be done if at most two ladies are included? -Maths 9th

Description : A committee of 5 persons is to be formed out of 6 gents and 4 ladies. In how many ways can this be done if at most two ladies are included? -Maths 9th

Last Answer : hope its clear

A person invites 15 guests for dinner and wishes to arrange them at two round tables that can accommodate 8 persons and 7 persons respectively. -Maths 9th

Description : A person invites 15 guests for dinner and wishes to arrange them at two round tables that can accommodate 8 persons and 7 persons respectively. -Maths 9th

Last Answer : answer:

7 persons enter an elevator on the ground floor of a 11 storey hotel. Any one of them can leave the elevator at any of the 10 floors. -Maths 9th

Description : 7 persons enter an elevator on the ground floor of a 11 storey hotel. Any one of them can leave the elevator at any of the 10 floors. -Maths 9th

Last Answer : answer:

A hemispherical bowl is 176 cm round the brim. Supposing it to be half full, how many persons may be served from it in hemispherical -Maths 9th

Description : A hemispherical bowl is 176 cm round the brim. Supposing it to be half full, how many persons may be served from it in hemispherical -Maths 9th

Last Answer : Let the radius of the hemispherical bowl be r cm Then, 2πr=176⇒r=176×72×22⇒r=282πr=176⇒r=176×72×22⇒r=28 Volume of liquid in the bowl : =12×( ... : =Volume of liquid in the bowlVolume of 1 glass=(14×28×282×2×2)= 1372

A magazine company conducted a phone survey asking subscribers to identify the brand of outdoor camping equipment they like best. Every subscriber was surveyed, and the results were printed in an article titled “Most Popular Equipment among All Campers.” Why is the title of the article misleading?

Description : A magazine company conducted a phone survey asking subscribers to identify the brand of outdoor camping equipment they like best. Every subscriber was surveyed, and the results were printed in an article titled “Most Popular Equipment among All Campers.” Why is the title of the article misleading?

Last Answer : For view, of course. Edit: ok, now I confused. Are you asking what makes the title misleading, or why the magazine makes the misleading title?

Who conducted the First social survey of low skilled London workers ? -SST 10th

Description : Who conducted the First social survey of low skilled London workers ? -SST 10th

Last Answer : (i) Charles Booth conducted the first survey of low skilled London workers in 1887. (ii) (a) Increasing population (b) Low wages (c) Lack of education (d) Pushing large number of children into low paid work by their parents.

Who conducted the First social survey of low skilled London workers ? -SST 10th

Description : Who conducted the First social survey of low skilled London workers ? -SST 10th

Last Answer : Charles Booth.

Who conducted the First social survey of low skilled London workers ? -SST 10th

Description : Who conducted the First social survey of low skilled London workers ? -SST 10th

Last Answer : Charles Booth.

Who conducted a survey in London in 1887 ? What was its result ? -SST 10th

Description : Who conducted a survey in London in 1887 ? What was its result ? -SST 10th

Last Answer : In 1887. Charles Booth conducted a survey and concluded that 1 million landowners were very poor and were expected to live only up to an average age of 29 These people were more likely to die in a workhouse, hospital or lunatic asylum.

What is the position of Rabindranath in the list of the best Bengalis of all time in the survey conducted by BBC Bangla section (2004) ?

Description : What is the position of Rabindranath in the list of the best Bengalis of all time in the survey conducted by BBC Bangla section (2004) ?

Last Answer : In the survey conducted by BBC Bangla section (2004), Rabindranath is ranked 2nd (first Bangabandhu) in the list of best Bengalis of all time.

The data collection for national income estimation is conducted in India by— (1) The Finance Ministry of the Government of India (2) The RBI (3) The NSSO (National Sample Survey Organization (4) None of these

Description : The data collection for national income estimation is conducted in India by— (1) The Finance Ministry of the Government of India (2) The RBI (3) The NSSO (National Sample Survey Organization (4) None of these

Last Answer : (3) The NSSO (National Sample Survey Organization Explanation: The National Sample Survey Office (NSSO) in India is a unique setup to carry out surveys on socioeconomic, demographic, agricultural ... of India for collection of statistical data in the areas which are vital for developmental planning.

The first forest survey of India was conducted in which year? a. 1981 b. 1977 c. 1988 d. 1987 e. 1985

Description : The first forest survey of India was conducted in which year? a. 1981 b. 1977 c. 1988 d. 1987 e. 1985

Last Answer : d. 1987

Mark correct option relating to live mail survey a) The survey is to be conducted in one delivery PO in each Postal Division. b) The PO to be selected should have a reasonable quantity of mail for study. c) 25% of the Post Offices selected for the survey should be in rural areas d) At least 25% of the total mails received in the PO selected is to be studied. e) All the above

Description : Mark correct option relating to live mail survey a) The survey is to be conducted in one delivery PO in each Postal Division. b) The PO to be selected should have a reasonable quantity of mail for study. ... least 25% of the total mails received in the PO selected is to be studied. e) All the above

Last Answer : e) All the above

n the previous three years, four studies have been conducted on the characteristics of Tyrone Brick's clients. As the firm seeks to put together a report showing trends in this area, it has a hard time locating the information contained in these study reports. This firm seems to need: A)a marketing research manager B)a marketing databank C)survey research D)primary data

Description : n the previous three years, four studies have been conducted on the characteristics of Tyrone Brick's clients. As the firm seeks to put together a report showing trends in this area, it has a ... to need: A)a marketing research manager B)a marketing databank C)survey research D)primary data

Last Answer : B)a marketing databank

The data collection for national income estimation is conducted in India by— (1) The Finance Ministry of the Government of India (2) The RBI (3) The NSSO (National Sample Survey Organi-sation) (4) None of these

Description : The data collection for national income estimation is conducted in India by— (1) The Finance Ministry of the Government of India (2) The RBI (3) The NSSO (National Sample Survey Organi-sation) (4) None of these

Last Answer : The NSSO (National Sample Survey Organi-sation)

Children of a society planned to plant trees in their area. -Maths 9th

Description : Children of a society planned to plant trees in their area. -Maths 9th

Last Answer : Environmental care, beauty, conservation.

The number of members of society A who participated -Maths 9th

Description : The number of members of society A who participated -Maths 9th

Last Answer : The number of participants from society A and C is equal. Things which are double of the same thing are equal to one another. Social service, helpfulness, cooperation, environmental concern.

The resident of society decided to paint the hall of cancer detective centre in their premises. -Maths 9th

Description : The resident of society decided to paint the hall of cancer detective centre in their premises. -Maths 9th

Last Answer : Perimeter = 2(l + b) = 260 = l + b = 130 (a) Surface area of four walls = 2h (l + b) = 2 x 6 x 130 = 1560 m2 Cost of painting = 9 x 1560 = ₹14,040 ( b) Amount contributed = 14040/50 = ₹280.8 (c) Cooperation, social cohesion.

The letters of the word ‘SOCIETY’ are placed at random in a row. What is the probability that three vowels come together ? -Maths 9th

Description : The letters of the word ‘SOCIETY’ are placed at random in a row. What is the probability that three vowels come together ? -Maths 9th

Last Answer : There are 7 letters in the word SOCIETY. ∴ Total number of ways of arranging all the 7 letters = n(S) = 7!. When the case of three vowels being together is taken, then the three vowels are considered as one unit, so the ... = 5! 3! ∴ Required probability = \(rac{5! imes3!}{7!}\) = \(rac{1}{7}\)

Which one of the characteristic is not related to survey method of research? Options: A) It organises scientific principles B) It is comparatively more difficult and changeable C) It requires imaginary planning D) It is not related with person's qualities

Description : Which one of the characteristic is not related to survey method of research? Options: A) It organises scientific principles B) It is comparatively more difficult and changeable C) It requires imaginary planning D) It is not related with person's qualities 

Last Answer : A) It organises scientific principles 

The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find the cost of white washing the walls of the room and the ceiling at the rate of ₹7.50 m². -Maths 9th

Description : The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find the cost of white washing the walls of the room and the ceiling at the rate of ₹7.50 m². -Maths 9th

Last Answer : Length of a room (l) = 5m Breadth (b) = 4 m and height (h) = 3 m ∴ Area of 4 walls = 2(l + b) x h = 2(5 + 4) x 3 = 6 x 9 = 54 m² and area of ceiling = l x b = 5 x ... ∴ Total area = 54 + 20 = 74 m2 Rate of white washing = 7.50 per m² ∴ Total cost = ₹74 x 7.50 = ₹555

A cylindrical pillar is 50 cm in diameter and 3.5 m in height. Find the cost of painting the curved surface of the pillar at the rate of ₹12.50 per m2 . -Maths 9th

Description : A cylindrical pillar is 50 cm in diameter and 3.5 m in height. Find the cost of painting the curved surface of the pillar at the rate of ₹12.50 per m2 . -Maths 9th

Last Answer : Diameter of the pillar = 50 cm ∴ Radius (r) = 502m = 25 m = 14m and height (h) = 3.5m Curved surface area of a pillar = 2πrh ∴ Curved surface area to be painted = 112m2 ∴ Cost of painting of 1 m2 pillar = Rs. 12.50 ∴ Cost of painting of 112 m2 pillar = Rs. ( 112 x 12.50 ) = Rs. 68.75.

An umbrella is made by stitching 10 triangular pieces of cloth of two different colours (see figure), each piece measuring 20 cm, 50 cm and 50 cm. -Maths 9th

Description : An umbrella is made by stitching 10 triangular pieces of cloth of two different colours (see figure), each piece measuring 20 cm, 50 cm and 50 cm. -Maths 9th

Last Answer : Let the sides of each triangular piece be a = 20 cm, b = 50 cm, c = 50 cm

A bus stop is barricaded from the remaining part of the road, by using 50 hollow cones made of recycled cardboard. Each cone has a base diameter of 40 cm and height 1 m. -Maths 9th

Description : A bus stop is barricaded from the remaining part of the road, by using 50 hollow cones made of recycled cardboard. Each cone has a base diameter of 40 cm and height 1 m. -Maths 9th

Last Answer : Given: Radius of cone, r = diameter/2 = 40/2 cm = 20cm = 0.2 m Height of cone, h = 1m Slant height of cone is l, and l2 = (r2+h2) Using given values, l2 = (0.22+12) = (1.04) Or l ... (32.028 12) = Rs.384.336 = Rs.384.34 (approximately) Therefore, the cost of painting all these cones is Rs. 384.34.

The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find the cost of white washing the walls of the room and ceiling at the rate of Rs 7.50 per m2. -Maths 9th

Description : The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find the cost of white washing the walls of the room and ceiling at the rate of Rs 7.50 per m2. -Maths 9th

Last Answer : Length (l) of room = 5m Breadth (b) of room = 4m Height (h) of room = 3m It can be observed that four walls and the ceiling of the room are to be white washed. Total area to be white washed = Area of walls + ... m2 area = Rs.7.50 (Given) Cost of white washing 74 m2 area = Rs. (74 7.50) = Rs. 555

The mean of 200 items was 50. Later on, it was discovered that the two items were misread as 92 and 8 instead of 192 and 88.find the correct mean. -Maths 9th

Description : The mean of 200 items was 50. Later on, it was discovered that the two items were misread as 92 and 8 instead of 192 and 88.find the correct mean. -Maths 9th

Last Answer : Here's ur answer..

Construct a histogram for the marks of the student given below : - Marks 0-10,10-30,30-45,45-50,50-60 and number of students 8,32,18,10,6 -Maths 9th

Description : Construct a histogram for the marks of the student given below : - Marks 0-10,10-30,30-45,45-50,50-60 and number of students 8,32,18,10,6 -Maths 9th

Last Answer : see in book okay!!!

There are 50 numbers. Each number is subtracted from 53 and the mean of the numbers so obtained is found to be – 3.5. Find the mean of the given numbers. -Maths 9th

Description : There are 50 numbers. Each number is subtracted from 53 and the mean of the numbers so obtained is found to be – 3.5. Find the mean of the given numbers. -Maths 9th

Last Answer : Let x be the mean of 50 numbers. ∴ sum of 50 numbers = 50x Since each number is subtracted from 53. According to question, we have 53 × 50 - 50x / 50 = - 3.5 ⇒ 2650 - 50x = -175 ⇒ 50x = 2825 ⇒ x = 2825 / 50 = 56.5

If the median of data (arranged in ascending order) 31, 33, 35, x, x+10, 48, 48, 50 is 40, then find value of x. -Maths 9th

Description : If the median of data (arranged in ascending order) 31, 33, 35, x, x+10, 48, 48, 50 is 40, then find value of x. -Maths 9th

Last Answer : Given data is 31, 33, 35, x, x+10, 48, 48, 50 Number of observation = 8 (even) Median = Value of (8/2)th observation + Value of (8/2+1)th observation / 2 Value of 4th observation + Value of 5th observation / 2 = x + x + 10 / 2 = x + 5 ∴ x + 5 = 40 ⇒ x = 35

A box contains 50 bolts and 150 nuts. On checking the box, it was found that half of the bolts and half of the nuts are rusted. -Maths 9th

Description : A box contains 50 bolts and 150 nuts. On checking the box, it was found that half of the bolts and half of the nuts are rusted. -Maths 9th

Last Answer : Total number of nuts and bolts in the box = 150 + 50 = 200 Number of nuts and bolts rusted = 1 / 2 × 200 = 100 P(a rusted nut or bolt) = 100 / 200 = 1 / 2

The table shows the marks obtained by a student in unit tests out of 50 : -Maths 9th

Description : The table shows the marks obtained by a student in unit tests out of 50 : -Maths 9th

Last Answer : Here the marks are out of 50 , so we find its percentage (i.e. out of 100)

ABCD is trapezium in which AB || DC, DC = 30 cm and AB = 50 cm. -Maths 9th

Description : ABCD is trapezium in which AB || DC, DC = 30 cm and AB = 50 cm. -Maths 9th

Last Answer : According to question prove that ar (DCYX) = 7/9 ar (XYBA).

The mean of 200 items was 50. Later on, it was discovered that the two items were misread as 92 and 8 instead of 192 and 88.find the correct mean. -Maths 9th

Description : The mean of 200 items was 50. Later on, it was discovered that the two items were misread as 92 and 8 instead of 192 and 88.find the correct mean. -Maths 9th

Last Answer : Here's ur answer..

Construct a histogram for the marks of the student given below : - Marks 0-10,10-30,30-45,45-50,50-60 and number of students 8,32,18,10,6 -Maths 9th

Description : Construct a histogram for the marks of the student given below : - Marks 0-10,10-30,30-45,45-50,50-60 and number of students 8,32,18,10,6 -Maths 9th

Last Answer : see in book okay!!!