Problema Solution

Sarah's age is 2/3 of Mary's age and 3/4 of Ruth's age. The sum of their ages is 46 years. How old is each?

Answer provided by our tutors

sol.

            let the ages of sarah, mary and ruth be s, m and r respectively

            acc to question,

                 s = 2/3 m = 3/4 r ---------------------(1)

               and also,

                           s+m+r =46

                          => 2/3m + m + 8/9m =46

                          => m = 8.11 years = 8 years (say)

           hence, s = 5years approx.

            r = 7years