1. If in the year 1998, there was an increase of 10% in the population of U.P. and 12% in the population of M.P. compared to the previous year, then what was the ratio of populations of U.P. and M.P. in 1997?
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- By: guest on 01 Jun 2017 11.13 pmLet x be the population of U.P. in 1997. Then, Population of U.P. in 1998 = 110% of x = 110 x x. 100 Also, let y be the population of M.P. in 1997. Then, Population of M.P. in 1998 = 112% of y = 112 x y. 100 Ratio of populations of U.P. and M.P. in 1998 = 110 x x 100 = 110x . 112 x y 100 112y From the pie-chart, this ratio is 15 . 20 110x = 15 x = 15 x 112 = 42 . 112y 20 y 20 110 55 Thus, ratio of populations of U.P. and M.P. in 1997 = x : y = 42 : 55.
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