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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:

What shall be the total approximate traffic (000) of Kolkata, Vizag and Cochin Port in 2017-18 if traffic continues to grow at the annual growth rate of 10% per annum in each of these ports?
Total traffic for Kolkata in 2017-18 = Traffic for Kolkata in 2015-16*(1+ (10/100))*(1+(10/100)) =
= (Traffic for Kolkata in 2015-16) * 1.1 * 1.1 =
= (Traffic for Kolkata in 2015-16) * 1.21 (Given growth rate is 10 percent)
Total traffic for Vizag in 2017-18 = (Traffic for Vizag in 2015-16) * 1.21
Total traffic for Cochin in 2017-18 = (Traffic for Cochin in 2015-16) * 1.21
Sum of total traffic of these ports in 2017-18 =(Sum of total traffic of given ports in 2015-16)*1.21
=(50,195+57033+22099)*1.21 = 129,327*1.21 = 156500 (Approx)
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