Question
The average age of three children is 20 years. If their
ages are in the ratio 2:3:5. Find the age of the youngest child.Solution
Total age of three children = 20 × 3 = 60 years Let their ages be 2x, 3x and 5x respectively. => 2x + 3x + 5x = 60 => 10x = 60 => x = 6 Therefore the age of youngest child = 2 × 6 = 12 years
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