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India has 13 major ports, out of which 6 ports are located in Eastern Coast and 6 ports are in Western Coast of India. 13th port is at Port Blair, located in Andaman & Nicobar Island, which has negligible cargo traffic: Table below provides the traffic data bandied by 12 major ports (thousand tonnes) of India for the period 2011-12 to 2015-16. Based on the table, answer the questions:


Question 102

In which year, the average growth of all ports is the highest?

Solution

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Total traffic of all ports

for 2011-12,   43248+54254+67420+14956+55707+28105+20090+32941+39049+56186+65730+82501 = 560187      

for 2012-13,   39928+56552+59038+17885+53404+28260+19845+37036+17738+58038+64488+93619 = 545831

for 2013-14,    41386+68003+58504+27337+51105+28642+20886+39365+11739+59184+62333+87005 = 555489

for 2014-15,    46293+71011+58004+30251+52541+32414+21595+36566+14711+61660+63801+92497 = 581344

for 2015-16,    50195+76395+57033+32206+50058+36849+22099+35582+20776+61110+64027+100051 = 606381

Highest average growth = growth/12    (Total no of ports = 12)

For 2012-13, growth is negative.

For 2013-14, growth = 555489-545831 = 9658

For 2014-15, growth = 581344-555489 = 25855

For 2015-16, growth = 606381-581344 = 25037

Here, 2014-15 has highest growth from previous period.

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