Question
If the average age of "Ava," "Bella," and "Cara" is 30
years, and the ratio of their ages is 5:7:3, what is the age of "Cara"?Solution
ATQ, Let, age of Ava, Bella and Cara be 5x years, 7x years and 3x years respectively. According to question, (5x + 7x + 3x)/3 = 30 15x = 90 x = 90/15 x = 6 Therefore, age of Cara= 3 × 6 = 18 years
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