The given graph shows rainfall in centimetres in the cities M, N, O and P from 2001 to 2005. Study the graph and answer the question.

For the given period, which two cities are closest to each other in terms of average annual rainfall?

Correct option is C

Solution:    

The following data represents the rainfall (in centimeters) for cities M, N, O, and P from 2001 to 2005:

M: 160, 140, 160, 160, 170

N: 160, 160, 170, 150, 190

O: 130, 120, 130, 120, 130

P: 100, 150, 120, 100, 180

To find the city with the maximum average rainfall, we calculate the average rainfall for each city as follows:

Average rainfall for M = (160 +140+160 +160 +170) / 5

= 158 cm

Average rainfall for N = (160+ 160+170+ 150+190) / 5

= 166 cm

Average rainfall for O = (130 +120 + 130 + 120 +130) / 5

= 126 cm

Average rainfall for P = (100 +150 +120 + 100 + 180) / 5

= 130 cm
According to the calculating data we get that the annual average rainfall is closest in O and P state.