English

Data was collected on a student’s typing rate and graph was drawn as shown below. Approximately how many words had this student typed in 30 seconds? - Mathematics

Advertisements
Advertisements

Question

Data was collected on a student’s typing rate and graph was drawn as shown below. Approximately how many words had this student typed in 30 seconds?

Options

  • 20

  • 24

  • 28

  • 34

MCQ
Graph
Advertisements

Solution

28

Explanation:

The time taken is denoted on x-axis and the number of words types are on y-axis. To calculate words types in 30 seconds. We look for the point on the line graph which corresponds 30 on the x-axis and from that point on the graph, draw perpendicular on the y-axis to find the number of words typed. The Answer comes out to be approximately 28 words in 30 seconds.

shaalaa.com
  Is there an error in this question or solution?
Chapter 12: Introduct To Graphs - Exercise [Page 374]

APPEARS IN

NCERT Exemplar Mathematics [English] Class 8
Chapter 12 Introduct To Graphs
Exercise | Q 9. | Page 374

RELATED QUESTIONS

The table below gives the number of children who took part in the various items of the talent show as part of the annual school gathering. Make a bar graph to show this data.

(Scale: on Y-axis, 1cm = 4 children)

Programme Theatre Dance Vocal music Instrumental music One-act plays
No. of students 24 40 16 8 4

Write the names of four of your classmates. Beside each name, write his/her weight in kilograms. Enter this data in a table like the above and make a bar graph.


The following data gives total marks (out of 600) obtained by six children of a particular class. Represent the data on a bar graph.

Students Ajay Bali Dipti Faiyaz Geetika Hari
Marks Obtained  450 500 300 360 400 540

The fruits liked by the students of a class are as follow: Draw a Bar Graph for this data.

Fruits Bananas Grapes Apples Mangoes Guavas Papayas Other fruits
Number of
students
8 10 8 7 12 3 2

The bar graph illustrates the results of a survey conducted on vehicles crossing over a Toll Plaza in one hour.

Observe the bar graph carefully and fill up the following table.

Vehicles Buses _____ Cars Vans _____ Others Total vehicles
Number of
Vehicles
_____ 45 _____ _____ 30 ______ ______

The lengths (in the nearest centimetre) of 30 drumsticks are given as follows.

Lengths Number of drumsticks
24 ||||
25 --
26 --
27 |||| |
28 --
29 |||| |||
30 |||| |
31 ||||

Draw the bar graph showing the same information.


The cost of a notebook is Rs 10. Draw a graph after making a table showing cost of 2, 3, 4, .... notebooks. Use it to find the number of note books that can be purchased with Rs 50


Complete the given table and draw a graph.

x 0 1 2 3
y = 3x + 1 1 4 - -

The number of ATMs of different banks in a city is shown below:

Bank Number of ATMs
Syndicate Bank 5
Dena Bank 15
Indian Bank 20
State Bank of India 25
Vijaya Bank 10

Draw a bar graph to represent the above information by choosing the scale of your choice.


The following table gives the data of number of schools (stage-wise) of a country in the year 2002.

Stage Number of schools (in thousands)
Primary 80
Upper Primary 55
Secondary 30
Higher Secondary 20

Draw a bar graph to represent the above data:


A survey of 120 school students was done to find which activity they prefer to do in their free time.

Preferred activity Number of students
Playing 45
Reading story books 30
Watching TV 20
Listening to music 10
Painting 15

Draw a bar graph to illustrate the above data taking a scale of 1 unit length = 5 students.

Which activity is preferred by most of the students other than playing?


What is the primary characteristic that distinguishes bar graphs from other forms of data representation?


A nursery has 70 Mogara plants, and the scale chosen is 1 cm = 10 plants. What should be the height of the bar representing Mogara?


In a vertical bar graph, what type of information is conventionally represented on the X-axis (Horizontal Axis)?


Which element is classified as representing the "numerical values (frequency, amount, or measure)" in a bar graph?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×