The average age of a woman and her daughter is 42 years. The ratio of their ages is 2:1. What is the daughter's age?
The average age of a woman and her daughter is 42 years. The ratio of their ages is 2:1. What is the daughter's age?
(a) 28 years (b) 48 years (c) 52 years (d) 32 years (e) None of these
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(a) Let the age of woman be 2x years and that of her daughter be x years.
According to the question,
2x + x = 2 × 42
or, 3x = 84
or, x = 84/3 =28
Daughter's age = 28 years
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