0 votes 0 votes A country’s GDP grew by $7.8%$ within a period. During the same period, the country’s per-capita-GDP (= ratio of GDP to the total population) increased by $10%.$ During this period, the total population of the country$?$ increased by $4\%$ decreased by $4\%$ increased by $2\%$ decreased by $2\%$ Quantitative Aptitude general-aptitude numerical-methods percentage virtual-gate-test-series + – Purple asked Jan 19, 2017 edited Apr 14, 2019 by Lakshman Bhaiya Purple 553 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 5 votes 5 votes $1.078 = {1.1}{x} \\ \implies x = \frac{1.078}{1.1} = 0.98$ So, population decreased by 2%. Arjun answered Jan 19, 2017 edited Dec 14, 2022 by gatecse Arjun comment Share Follow See 1 comment See all 1 1 comment reply Shivam Sinha commented Jan 25, 2018 reply Follow Share per-capita-GDP = GDP/Population now, GDP = 1.078 and per-capia = 1.1 so population = 1.078/1.1 so, population decreased by 2% 1 votes 1 votes Please log in or register to add a comment.