The table below gives details of coal production in four different states for the years 2014 to 2018. Observe the table and answer the question below.

State	2014	2015	2016	2017	2018
A	84	86	85	82	85
B	168	164	162	163	145
C	178	180	181	182	185
D	86	79	84	76	74

Coal production (in thousands)
In how many years did the overall production of coal fall when compared to the previous year?the overall production of coal fall when compared to the previous year?

Correct option is A

Solution:

Overall production of coal in 2014

= 84 + 168 + 178 + 86 

= 516 (in thousands)

Overall production of coal in 2015 

= 86 + 164 + 180 + 79 

= 509 (in thousands)

Overall production of coal in 2016

= 85 + 162 + 181 + 84 

= 512 (in thousands)

Overall production of coal in 2017

= 82 + 163 + 182 + 76 

= 503 (in thousands)

Overall production of coal in 2018

= 85 + 145 + 185 + 74

= 489  (in thousands) 

Now the overall production of coal fall when compared to the previous year in the year 2015 ,2017  and 2018 

Thus in  3 years out of 5 years the production of coal fall.