. For which time intervals, is the percentage rise of population the same for the following data? Period Population 1970 40,000 1980 50,000 1990 60,000 2000 72,000 2010 80,000

Correct Answer is : 2000 - 2010 and 1990 - 2000

EPFO 2015 English Medium Solved Paper

Question : 14 of 120

Marks: +1, -0

. For which time intervals, is the percentage rise of population the same for the following data?

Solution:

For 1970-1980, percentage rise
=

{50000-40000}/50000×100

=25 %

For 1980-1990, percentage rise
=

{60000-50000}/50000

×100=20 %

For 1990-2000, percentage rise

={80000-72000}/72000

×100=20 %

For 2000-2020, percentage rise

={80000-72000}/72000×100=11.11 %

Hence, in period 1980-1990 and 1990-2000,percentage rise is same.

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