Question
The average age of three children is 16 years. If their
ages are in the ratio 3:4:5. Find the age of the youngest child.Solution
Total age of three children = 16 × 3 = 48 years Let their ages be 3x, 4x and 5x respectively. => 3x + 4x + 5x = 48 => 12x = 48 => x = 4 Therefore the age of youngest child = 3 × 4 = 12 years
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