Question
The ages of A, B and C are in the ratio of 4:7:9
respectively. If the sum of their ages is 40 years, then find the age of B.Solution
Let the ages of A, B and C be 4x, 7x and 9x respectively. According to the question, => 4x + 7x + 9x = 40 => 20x = 40 => x = 2 Age of B = 7x = 7 × 2 = 14 years.
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