Question
Three years ago, the age difference between Tina and
Mina was 4 years. Currently, the ratio of their ages is 5:7, respectively. Determine the present age of Mina's father, who is currently 4 years younger than three times Mina's present age.Solution
Let the present ages of Tina and Mina be '5m' and '7m' years respectively. Difference between age of two person is always same. So, 7m - 5m = 4 Or, 2m = 4 Or, 'm' = 2 Present age of Mina = '7m' = 7 X 2 = 14 years Therefore, present age of Mina's father = 3 X 14 - 4 = 42 - 4 = 38 years
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