Question Answers
Sahay Sir > Question Answers
Read the bar graph (see the given figure) which shows the number of books sold by a bookstore during five consecutive years and answer the questions that follow: (i) About how many books were sold in 1989? 1990? 1992? (ii) In which year were about 475 books sold? About 225 books sold? (iii) In which years were fewer than 250 books sold?
07
Oct
Read the bar graph (see the given figure) which shows the number of books sold by a bookstore during five consecutive years and answer the questions that follow: (i) About how many books were sold in 1989? 1990? 1992? (ii) In which year were about 475 books sold? About 225 books sold? (iii) In which [...]
Tell whether the statement is true or false: (iii) The median is always one of the numbers in a data. (iv) The data 6, 4, 3, 8, 9, 12, 13, 9 has mean 9.
07
Oct
Tell whether the statement is true or false: (iii) The median is always one of the numbers in a data. (iv) The data 6, 4, 3, 8, 9, 12, 13, 9 has mean 9. -12 13 3% 4 8 9 9 has mean 9. Tell whether the statement is true or false: (iii) The median [...]
Tell whether the statement is true or false: (i) The mode is always one of the numbers in a data. (ii) The mean can be one of the numbers in a data.
07
Oct
Tell whether the statement is true or false: (i) The mode is always one of the numbers in a data. (ii) The mean can be one of the numbers in a data. Tell whether the statement is true or false: (i) The mode is always one of the numbers in a data. (ii) The mean [...]
Find the mode and median of the data: 13, 16, 12, 14, 19, 12, 14,
07
Oct
Find the mode and median of the data: 13, 16, 12, 14, 19, 12, 14, -12 14 16 … 19 Find the mode and median of the data: 13 October 7, 2020 Category: Chapter 3 - Data Handling , Maths , NCERT Class 7 ,
The weights (in kg.) of 15 students of a class are: 38, 42, 35, 37, 45, 50, 32, 43, 43, 40, 36, 38, 43, 38, 47 (i) Find the mode and median of this data. (ii) Is there more than one mode?
07
Oct
The weights (in kg.) of 15 students of a class are: 38, 42, 35, 37, 45, 50, 32, 43, 43, 40, 36, 38, 43, 38, 47 (i) Find the mode and median of this data. (ii) Is there more than one mode? -45 3^2 35° 36 37 38 40 42 43 47 (i) Find the [...]
Figure shows two converging lenses. Incident rays are parallel to the principal axis. What should be the value of d so that final rays are also parallel?
07
Oct
Figure shows two converging lenses. Incident rays are parallel to the principal axis. What should be the value of d so that final rays are also parallel? Figure shows two converging lenses. Incident rays are parallel to the principal axis. What should be the value of d so that final rays are also parallel? October [...]
The runs scored in a cricket match by 11 players is as follows: 6, 15, 120, 50, 100, 80, 10, 15, 8, 10, 15 Find the mean, mode and median of this data. Are the three same?
07
Oct
The runs scored in a cricket match by 11 players is as follows: 6, 15, 120, 50, 100, 80, 10, 15, 8, 10, 15 Find the mean, mode and median of this data. Are the three same? 10 100 120 15 15 Find the mean 50 8 80 mode and median of this data. Are [...]
In figure, find the position of final image formed.
07
Oct
In figure, find the position of final image formed. find the position of final image formed. In figure October 7, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A biconvex lens of focal length 20 cm, made of glass of refractive index 1.5, has water ( mu = 1.33) on one side and air on the other. An object is placed is 15 cm from the lens
07
Oct
A biconvex lens of focal length 20 cm, made of glass of refractive index 1.5, has water ( mu = 1.33) on one side and air on the other. An object is placed is 15 cm from the lens A biconvex lens of focal length 20 cm has water ( mu = 1.33) on one [...]
The source is placed 30 cm from a convex lens which has a focal length of 20 cm. The source is initially located on the axis of the lens. The lens is then cut into two halves in a
07
Oct
The source is placed 30 cm from a convex lens which has a focal length of 20 cm. The source is initially located on the axis of the lens. The lens is then cut into two halves in a The source is placed 30 cm from a convex lens which has a focal length of [...]