Question
The average age of three children is 20 years. If their
ages are in the ratio 1:2:3. Find the age of the youngest child.Solution
Total age of three children = 20 × 3 = 60 years Let their ages be x, 2x and 3x respectively. => x + 2x + 3x = 60 => 6x = 60 => x = 10 Therefore the age of youngest child = 1 × 10 = 10 years
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