Calculate the population by the end of 2011 by the arithmetical increase method. Year Population 1951 1,00,000 1961 1,09,000 1971 1,16,000 1981 1,28,000

SSC JE Civil Engineering 29-Oct-2020 Shift 1 Paper

Question : 160 of 200

Marks: +1, -0

Calculate the population by the end of 2011 by the arithmetical increase method.

Solution:

\ov {\X}={9,000+7,000+12,000}/{3}

=9333.333

The population at end of 2011 i.e. after 3 decodes from 1981.

\P_{g_{011}}=1,28,000+3 ×9333.333

\P_{g_{011}}=1,56,000

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