Question

In a population 7/20 are women and 1/4 are children. How many men are there

Answer 1

Population of children = 1/4

                                       =1*5/4*5(Equivalent fractions)

                                       =5/20

Population of women = 7/20

Total population= 20/20

∴Population of men=20/20-(7/20+5/20)

                                  =20/20 - 12/20

                                  =8/20

                                  =2/5

∴Fraction of population of men = 2/5