The line graph shows the temperature of a patient in a hospital, recorded every hour. The patient’s temperature was the same two times during the period given. What were these two times?

Given, From the line graph, we can see that, Time is taken on x-axis and temperature is taken on y-axis. Observe the point at 1 p . m and 2 p . m with respect to y-axis, we can see that they both are same. Hence, the patient’s has the same temperature during the period was at 1 p m and 2 p m .

The line graph shows the temperature of a patient in a hospital, recorded every hour. What was the temperature at 1.30 p m ? How did you arrive at your answer?

Given, From the line graph, we can see that, Time is taken on x-axis and temperature is taken on y-axis. Observe the point at 1 p . m and 2 p . m with respect to y-axis, we can see that they both are same. Thus, the temperature doesnot change from 1 pm to 2 pm . Hence, the temperature at 1.30 p m is 36.5 o C .

The line graph shows the temperature of a patient in a hospital, recorded every hour. During which periods did the patients, temperatures show an upward trend?

Given, From the line graph, we can see that, Time is taken on x-axis and temperature is taken on y-axis. Observe the graph, there is a rise of temperature from 9 a . m upto 11 a . m and then the temperature decreases upto 1 p . m . It is constant upto 2 p . m and then rise in temperature is given. Hence, the patient’s temperatures shown an upward trend from 9 a . m to 11 a . m , 2 p . m to 3 p . m .

Draw the temperature-time line graph for the following data. Time (in hours) 7 : 00 8 : 00 11 : 00 14 : 00 17 : 00 20 : 00 Temperature (in ℃ ) 29 20 32 35 31 28

Given data, Time (in hours) 7 : 00 8 : 00 11 : 00 14 : 00 17 : 00 20 : 00 Temperature (in ℃ ) 29 20 32 35 31 28 In a line graph, points are plotted on a graph paper with the help of two variables i.e, one along the x-axis and the other along y-axis. Then these points are joined in pairs by lines to obtain line graphs. Take Subjects along the x-axis and Number of students along the y-axis. Take Scale on y-axis as 1 cm = 5 ° C Plot the points 7 : 00 , 29 , 8 : 00 , 20 , 11 : 00 , 32 , 14 : 00 , 35 , 17 : 00 , 31 , 20 : 00 , 28 and join them by line segments as shown.

The number of students in a hostel speaking different languages is given below. Represent the data in a pie chart. Languages Hindi English Marathi Tamil Bengali Total Number of students 40 10 8 8 6 72

Given data, Languages Hindi English Marathi Tamil Bengali Total Number of students 40 10 8 8 6 72 Total number of students is 72 . Central angle for a component = value of the component Total value × 360 ° The table showing the computation of central angles is as under: Languages Hindi English Marathi Tamil Bengali Number of students 40 10 8 8 6 Measure of the Central Angle 40 72 × 360 = 200 o 10 72 × 360 = 50 o 8 72 × 360 = 40 o 8 72 × 360 = 40 o 6 72 × 360 o = 3 0 o Draw a circle of any convienient radius. Now divide the interior of this circle into sectors of angles 200 ° , 50 ° , 40 ° , 40 ° and 30 ° with help of your protractor. Hence, the pie chart is drawn as,

The following data gives the amount spent on the construction of a house. Draw a pie chart. Item Cement Timber Bricks Labour Steel Misc. Expenditure (in thousands) 75 40 50 70 50 75

Given data, Item Cement Timber Bricks Labour Steel Misc. Expenditure (in thousands) 75 40 50 70 50 75 Sum of expenditure = 75 + 40 + 50 + 70 + 50 + 75 = 360 . Central angle for a component = value of the component Total value × 360 ° The table showing the computation of central angles is as under: Item Cement Timber Bricks Labour Steel Misc. Expenditure (in thousands) 75 40 50 70 50 75 Measure of central angle 75 360 × 360 o = 75 ° 40 360 × 360 o = 40 ° 50 360 × 360 o = 50 ° 70 360 × 360 o = 70 ° 50 360 × 360 o = 50 ° 75 360 × 360 o = 75 ° Draw a circle of any convienient radius. Now divide the interior of this circle into sectors of angles 75 ° , 40 ° , 50 ° , 70 ° , 50 ° and 75 ° with help of your protractor. Hence, the pie chart is drawn as,

The expenditure of a firm under different heads in term of percentage expenditure is given below. Draw a pie chart. Items Wages Rent Maintenance Miscellaneous Percentage 50 25 12.5 12.5

Given data, Items Wages Rent Maintenance Miscellaneous Percentage 50 25 12.5 12.5 The Total percentage is 50 + 25 + 12 . 5 + 12 . 5 = 100 Central angle for a component = value of the component Total value × 360 ° The table showing the computation of central angles is as under: Items Wages Rent Maintenance Miscellaneous Percentage 50 25 12.5 12.5 Angles 50 100 × 360 = 180 o 25 100 × 360 = 90 o 12.5 10 × 360 = 45 o 12.5 100 × 360 = 45 o Draw a circle of any convenient radius. Now divide the interior of this circle into sectors of angles 180 ° , 90 ° , 45 ° and 45 ° with help of your protractor. Hence, the pie chart is drawn as,

MEDIUM

7th ICSE

IMPORTANT

Earn 100

The line graph shows the temperature of a patient in a hospital, recorded every hour.

What was the patient’s temperature at $1 p . m .$ ?

50% studentsanswered this correctly

Important Questions on Graphical Representation of Data

MEDIUM

7th ICSE

IMPORTANT

New Mathematics Today Class 7>Chapter 24 - Graphical Representation of Data>Exercise>Q 6

The line graph shows the temperature of a patient in a hospital, recorded every hour.

Question Image

When was the patient’s temperature $38.5 ℃$ .

MEDIUM

7th ICSE

IMPORTANT

New Mathematics Today Class 7>Chapter 24 - Graphical Representation of Data>Exercise>Q 6

The line graph shows the temperature of a patient in a hospital, recorded every hour.

Question Image

The patient’s temperature was the same two times during the period given. What were these two times?

MEDIUM

7th ICSE

IMPORTANT

New Mathematics Today Class 7>Chapter 24 - Graphical Representation of Data>Exercise>Q 6

The line graph shows the temperature of a patient in a hospital, recorded every hour.

Question Image

What was the temperature at $1.30 p m$ ? How did you arrive at your answer?

MEDIUM

7th ICSE

IMPORTANT

New Mathematics Today Class 7>Chapter 24 - Graphical Representation of Data>Exercise>Q 6

The line graph shows the temperature of a patient in a hospital, recorded every hour.

Question Image

During which periods did the patients, temperatures show an upward trend?

MEDIUM

7th ICSE

IMPORTANT

New Mathematics Today Class 7>Chapter 24 - Graphical Representation of Data>Exercise>Q 7

Draw the temperature-time line graph for the following data.

Time (in hours)	$7 : 00$	$8 : 00$	$11 : 00$	$14 : 00$	$17 : 00$	$20 : 00$
Temperature (in $℃$ )	$29$	$20$	$32$	$35$	$31$	$28$

MEDIUM

7th ICSE

IMPORTANT

New Mathematics Today Class 7>Chapter 24 - Graphical Representation of Data>Exercise>Q 8

The number of students in a hostel speaking different languages is given below. Represent the data in a pie chart.

Languages	Hindi	English	Marathi	Tamil	Bengali	Total
Number of students	$40$	$10$	$8$	$8$	$6$	$72$

MEDIUM

7th ICSE

IMPORTANT

New Mathematics Today Class 7>Chapter 24 - Graphical Representation of Data>Exercise>Q 9

The following data gives the amount spent on the construction of a house. Draw a pie chart.

Item	Cement	Timber	Bricks	Labour	Steel	Misc.
Expenditure (in thousands)	$75$	$40$	$50$	$70$	$50$	$75$

MEDIUM

7th ICSE

IMPORTANT

New Mathematics Today Class 7>Chapter 24 - Graphical Representation of Data>Exercise>Q 10

The expenditure of a firm under different heads in term of percentage expenditure is given below. Draw a pie chart.

Items	Wages	Rent	Maintenance	Miscellaneous
Percentage	$50$	$25$	$12.5$	$12.5$

The line graph shows the temperature of a patient in a hospital, recorded every hour. What was the patient’s temperature at 1 p.m.?

Important Questions on Graphical Representation of Data

Learn and Prepare for any exam you want !

The line graph shows the temperature of a patient in a hospital, recorded every hour.

What was the patient’s temperature at $1 p . m .$ ?