PROBLEMS ON LINE GRAPH

Problem 1 :

Below is a line graph that shows how many books are sold in a charity shop over one week.

(a) On which day did the charity shop sell the most books?

(b) On which day did the charity shop sell the least books?

(c) How many books were sold on Tuesday?

Solution :

a) By observing the graph, on Thursday most number of books sold out.

b)  On Saturday, least number of books sold out.

c)  On Tuesday, 80 books were sold out.

Problem 2 :

Below is a line graph that shows the population of a village.

(a) What was the population in 1980?

(b) In which year was the population 700?

Solution :

a) On 1980, the population is 750.

b) On 1970 the population was 700.

Problem 3 :

Analyze the line graph, complete the data table and answer the questions.

1) Complete the data table

2) In which month was the average temperature 30 degrees Celsius?

3) In which 2 months was the average temperature the same?

4) In which months was the average temperature higher than 20 degrees?

5) How much did the average temperature increase between January and April?

Solution :

1) 

2) On the month of May, the average temperature 30 degrees Celsius

3) In the months February and March, the average temperatures are same.

4)  The average average temperature in the month of May and June are more than 20 degree.

5) Increase between Jan and April is 20 - 10 = 10