Question

Year
Mathematics
Science
18. The following data gives the number of Mathematics and Science books purchased by a library
during three different years. Plot a double bar graph from this data and answer the following questions:
2015
2016
2017
2018
2019
200
350
500
475
675
100
325
450
625
525
i)
Which year shows the maximum difference in no.of books purchased in
mathematics and science.
What is the average number of the Mathematics books purchased in a year?
What is the average number of the Science books purchased in a year?​

Answer 1

Step-by-step explanation:

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