Question

Following bar graph shows the number of books sold by a bookstore during five consecutive years.

a) In which year, 200 books were sold?

b) How many books were sold in the year 1989?

c) What is the difference between the number of books sold in 1993 and 1992?

Answer 1

The various inferences that we can draw from the above bar graph are:
In 1989 - 100 books were sold.
In 1990 - 200 books were sold.
In 1991 - 600 books were sold.
In 1992 - 300 books were sold.
In 1993 - 400 books were sold.

a) As we can see from the above bar graph, 200 books were sold in 1990.

b) In 1989, 100 books were sold.

c) Number of books sold in 1993 = 400
Number of books sold in 1992 = 300
$\therefore$ The difference in the number of books sold in 1993 and 1992 = 400 - 300 = 100.