Question

Find the population increase between 1953 and 1956 as per the given information.
Year. Population
1911. 12
1921. 15
1931. 20
1941. 27
1951. 39
1961. 52

Answer 1

Answer:

39+52 = 91

their is difference of ten years

so each year population increases = 91/10

= 9.1

so population increases between 51 to 53 = 3x9.1 = 27.3

population increases from 53 to 56 = 27.3x3 = 81.9