(a) In fig. (a) there are 16 ![](https://www.sarthaks.com/?qa=blob&qa_blobid=14095406767738520314)
Each
= 80 people
Total number of people = 16 x 80 = 1280
Fig. (a) has a population density of 1280 people per sq. km.
(b) In fig. (b) there are 23 ![](https://www.sarthaks.com/?qa=blob&qa_blobid=14095406767738520314)
Each
= 80 people
Total number of people = 23 x 80 = 1840
Fig. (b) has a population density of 1840 people per sq. km.