Total of the ages of A, B ahd C at present is 90 years. Ten years ago, the ratio of their ages was 1: 2: 3. What is the age of B at present Choose the correct choice from the following answers:
A) 25  B) 30  C) 45  D) 60  E) 65
Explanation:   Let their ages 10 years ago is x, 2x and 3x years.   10 + 2x + 10 + 3x + 10 = 90 hence x= 10   30’s present age = (2x + 10) =30 years   Option 30
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Total of the ages of A, B ahd C at present is 90 years. Ten years ago, the ratio of their ages was 1: 2: 3. What is the age of B at present