Answer : 2 50 Explanation : Answer: B) 50 Explanation: Sony and her brother

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Sony is one-fifth the age of her mother 15 years ago and Sony’s brother is three-fifth the age of his mother 10 years ago. If the sum of Sony and her brother’s ages is 31 then how old is Sony

Answer : 2 50 Explanation : Answer: B) 50 Explanation: Sony and her brother