NCERT Class 10
The table below- shows the daily expenditure on food of 25 households in a locality. Daily expenses (in Rs.) 100-150 150-200 200-250 250-300 300-350 No. of households 4 5 12 2 2 Find the mean daily expenses on food by a suitable method.
06
Oct
The table below- shows the daily expenditure on food of 25 households in a locality. Daily expenses (in Rs.) 100-150 150-200 200-250 250-300 300-350 No. of households 4 5 12 2 2 Find the mean daily expenses on food by a suitable method. 1 10-12 12-14 Number of houses 1 2 2-4 3 Which method [...]
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10-12 ,
12-14 Number of houses 1 ,
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2-4 ,
3 Which method did you use for finding the mean ,
4-6 ,
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6-8 ,
8-10 ,
A survey was conducted by a group of students as a part of their environment awareness programme ,
and why? ,
in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house. Number of Plants 0-2 ,
In a retail market, fruit vendors were selling mangoes kept in packing boxes. These boxes contained varying number of mangoes. The following was the distribution of mangoes according to the number of boxes. Find the mean number of mangoes kept in a packing box. Which method of finding the mean did you choose?
06
Oct
In a retail market, fruit vendors were selling mangoes kept in packing boxes. These boxes contained varying number of mangoes. The following was the distribution of mangoes according to the number of boxes. Find the mean number of mangoes kept in a packing box. Which method of finding the mean did you choose? 1 10-12 [...]
Tags:
1 ,
10-12 ,
12-14 Number of houses 1 ,
2 ,
2-4 ,
3 Which method did you use for finding the mean ,
4-6 ,
5 ,
6 ,
6-8 ,
8-10 ,
A survey was conducted by a group of students as a part of their environment awareness programme ,
and why? ,
In a retail market ,
in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house. Number of Plants 0-2 ,
Thirty women were examined in a hospital by a doctor and the number of heart beats per minute were recorded and summarised as follows. Find the mean heart beats per minute for these women, choosing a suitable method.
06
Oct
Thirty women were examined in a hospital by a doctor and the number of heart beats per minute were recorded and summarised as follows. Find the mean heart beats per minute for these women, choosing a suitable method. choosing a suitable method. Thirty women were examined in a hospital by a doctor and the number [...]
The following distribution shows the daily pocket allowance of children of a locality. The mean pocket allowance is Rs. 18. Find the missing frequency f.
06
Oct
The following distribution shows the daily pocket allowance of children of a locality. The mean pocket allowance is Rs. 18. Find the missing frequency f. The following distribution shows the daily pocket allowance of children of a locality. The mean pocket allowance is Rs. 18. Find the missing frequency f. October 6, 2020 Category: Chapter [...]
Consider the following distribution of daily wages of 50 workers of a factory: Find the mean daily wages of the workers of the factory by using appropriate method.
06
Oct
Consider the following distribution of daily wages of 50 workers of a factory: Find the mean daily wages of the workers of the factory by using appropriate method. Consider the following distribution of daily wages of 50 workers of a factory: Find the mean daily wages of the workers of the factory by using appropriate [...]
A survey was conducted by a group of students as a part of their environment awareness programme, in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house. Number of Plants 0-2, 2-4, 4-6, 6-8, 8-10, 10-12, 12-14 Number of houses 1, 2, 1, 5, 6, 2, 3 Which method did you use for finding the mean, and why?
06
Oct
A survey was conducted by a group of students as a part of their environment awareness programme, in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house. Number of Plants 0-2, 2-4, 4-6, 6-8, 8-10, 10-12, 12-14 Number of [...]
Tags:
1 ,
10-12 ,
12-14 Number of houses 1 ,
2 ,
2-4 ,
3 Which method did you use for finding the mean ,
4-6 ,
5 ,
6 ,
6-8 ,
8-10 ,
A survey was conducted by a group of students as a part of their environment awareness programme ,
and why? ,
in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house. Number of Plants 0-2 ,
An open metal bucket is in the shape of a frustum of a cone, mounted on a hollow cylindrical base made of the same metallic sheet. The diameter of the two circular ends of the bucket are 45 cm and 25 cm . the total vertical height of the bucket is 40 cm and that of the cylindrical base is 6 cm . Find the area of the metallic sheet used to make the bucket, where we do not like into account the handle of the bucket. Also, find the volume of water the bucket can hold, in litres.
06
Oct
An open metal bucket is in the shape of a frustum of a cone, mounted on a hollow cylindrical base made of the same metallic sheet. The diameter of the two circular ends of the bucket are 45 cm and 25 cm . the total vertical height of the bucket is 40 cm and that [...]
Hanumappa and his wife Gangamma are busy making Jaggery out of sugar-cane. They have processed the sugar cane juice to make the molasses which is poured into moulds of the shape shown in the figure. It will be cooled to solidify in this shape to be sent to the market. Each mould is in the shape of a frustum of a cone having the diameters of its two circular ends as 30cm and 35cm and the height of the mould is 14cm. If each cm^3 of molasses weighs about 1.2gm, find the weight of molasses that can be poured into each mould (Take π=22/7)
06
Oct
Hanumappa and his wife Gangamma are busy making Jaggery out of sugar-cane. They have processed the sugar cane juice to make the molasses which is poured into moulds of the shape shown in the figure. It will be cooled to solidify in this shape to be sent to the market. Each mould is in the [...]
The radii of the ends of frustum of a cone 45 cm high are 28 cm and 7 cm. Find its volume, the curved surface area and the total surface area.
06
Oct
The radii of the ends of frustum of a cone 45 cm high are 28 cm and 7 cm. Find its volume, the curved surface area and the total surface area. the curved surface area and the total surface area. The radii of the ends of frustum of a cone 45 cm high are 28 [...]
A hemispherical tank full of water is emptied by a pipe at the rate of 3 7/4 litres per second . How much time will it take to half empty the tank, if the tank is 3 metres in diameter? (Take π = 22/7)
06
Oct
A hemispherical tank full of water is emptied by a pipe at the rate of 3 7/4 litres per second . How much time will it take to half empty the tank, if the tank is 3 metres in diameter? (Take π = 22/7) A hemispherical tank full of water is emptied by a pipe [...]